83_FR_9806 83 FR 9761 - Self-Regulatory Organizations; The Options Clearing Corporation; Order Instituting Proceedings To Determine Whether To Approve or Disapprove Proposed Rule Change Related to The Options Clearing Corporation's Margin Methodology

83 FR 9761 - Self-Regulatory Organizations; The Options Clearing Corporation; Order Instituting Proceedings To Determine Whether To Approve or Disapprove Proposed Rule Change Related to The Options Clearing Corporation's Margin Methodology

SECURITIES AND EXCHANGE COMMISSION

Federal Register Volume 83, Issue 45 (March 7, 2018)

Page Range9761-9765
FR Document2018-04624

Federal Register, Volume 83 Issue 45 (Wednesday, March 7, 2018)
[Federal Register Volume 83, Number 45 (Wednesday, March 7, 2018)]
[Notices]
[Pages 9761-9765]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2018-04624]


=======================================================================
-----------------------------------------------------------------------

SECURITIES AND EXCHANGE COMMISSION

[Release No. 34-82801; File No. SR-OCC-2017-022]


Self-Regulatory Organizations; The Options Clearing Corporation; 
Order Instituting Proceedings To Determine Whether To Approve or 
Disapprove Proposed Rule Change Related to The Options Clearing 
Corporation's Margin Methodology

March 2, 2018.

I. Introduction

    On November 13, 2017, The Options Clearing Corporation (``OCC'') 
filed with the Securities and Exchange Commission (``Commission'') the 
proposed rule change SR-OCC-2017-022 (``Proposed Rule Change'') 
pursuant to Section 19(b) of the Securities Exchange Act of 1934 
(``Act''),\1\ and Rule 19b-4 thereunder.\2\ The Proposed Rule Change 
was published for comment in the Federal Register on December 4, 
2017.\3\ On January 18, 2018, the Commission designated a longer period 
of time for Commission action on the Proposed Rule Change.\4\ As of 
February 20, 2018,\5\ the Commission has received one comment letter on 
the proposal contained in the Advance Notice.\6\ The Commission is

[[Page 9762]]

publishing this order to institute proceedings pursuant to Section 
19(b)(2)(B) \7\ of the Act to determine whether to approve or 
disapprove the Proposed Rule Change.
---------------------------------------------------------------------------

    \1\ 15 U.S.C. 78s(b)(1).
    \2\ 17 CFR 240.19b-4.
    \3\ Securities Exchange Act Release No. 82161 (Nov. 28, 2017), 
82 FR 57306 (Dec. 4, 2017) (File No. SR-OCC-2017-022) (``Notice''). 
On November 13, 2017, OCC also filed a related advance notice (SR-
OCC-2017-811) with the Commission pursuant to Section 806(e)(1) of 
Title VIII of the Dodd-Frank Wall Street Reform and Consumer 
Protection Act, entitled the Payment, Clearing, and Settlement 
Supervision Act of 2010 and Rule 19b-4(n)(1)(i) under the Act 
(``Advance Notice''). 12 U.S.C. 5465(e)(1) and 17 CFR 240.19b-
4(n)(1)(i), respectively. The Advance Notice was published in the 
Federal Register on December 27, 2017. Securities Exchange Act 
Release No. 82371 (Dec. 20, 2017), 82 FR 61354 (Dec. 27, 2017) (SR-
OCC-2017-811).
     The Financial Stability Oversight Council designated OCC a 
systemically important financial market utility on July 18, 2012. 
See Financial Stability Oversight Council 2012 Annual Report, 
Appendix A, available at http://www.treasury.gov/initiatives/fsoc/Documents/2012%20Annual%20Report.pdf. Therefore, OCC is required to 
comply with the Payment, Clearing and Settlement Supervision Act and 
file advance notices with the Commission. See 12 U.S.C. 5465(e).
    \4\ Securities Exchange Act Release No. 82534 (Jan. 18, 2018), 
83 FR 3376 (Jan. 24, 2018) (File No. SR-OCC-2017-022).
    \5\ The comment period closed on December 26, 2017.
    \6\ See letter from Michael Kitlas, dated November 28, 2017, to 
Eduardo A. Aleman, Assistant Secretary, Commission, available at 
https://www.sec.gov/comments/sr-occ-2017-022/occ2017022.htm 
(``Kitlas Letter''). After reviewing the Kitlas Letter, the 
Commission believes that it is nonresponsive to the Proposed Rule 
Change and therefore outside the scope of the proposal.
     Since the proposal contained in the Proposed Rule Change was 
also filed as an Advance Notice, the Commission considered all 
public comments received on the proposal regardless of whether the 
comments were submitted on the Proposed Rule Change or the Advance 
Notice.
    \7\ 15 U.S.C. 78s(b)(2)(B).
---------------------------------------------------------------------------

    Institution of proceedings does not indicate that the Commission 
has reached any conclusions with respect to the Proposed Rule Change, 
nor does it mean that the Commission will ultimately disapprove the 
Proposed Rule Change. Rather, as discussed below, the Commission seeks 
additional input on the Proposed Rule Change and issues presented by 
the proposal.

II. Description of the Proposed Rule Change \8\
---------------------------------------------------------------------------

    \8\ The description of the Proposed Rule Change is substantially 
excerpted from the Notice. See Notice, 82 FR at 57306-57313.
---------------------------------------------------------------------------

OCC's Current Margin Methodology

    OCC's margin methodology, the System for Theoretical Analysis and 
Numerical Simulations (``STANS''), calculates clearing member margin 
requirements.\9\ STANS utilizes large-scale Monte Carlo simulations to 
forecast price and volatility movements in determining a clearing 
member's margin requirement.\10\ The STANS margin requirement is 
calculated at the portfolio level of clearing member accounts with 
positions in marginable securities and consists of an estimate of a 99% 
expected shortfall \11\ over a two-day time horizon and an add-on 
margin charge for model risk (the concentration/dependence stress test 
charge).\12\ The STANS methodology is used to measure the exposure of 
portfolios of options and futures cleared by OCC and cash instruments 
in margin collateral.\13\
---------------------------------------------------------------------------

    \9\ See Securities Exchange Act Release No. 53322 (Feb. 15, 
2006), 71 FR 9403 (Feb. 23, 2006) (File No. SR-OCC-2004-20).
    \10\ See OCC Rule 601; see also Notice, 82 FR at 57307.
    \11\ See Notice, 82 FR at 57307.
     The expected shortfall component is established as the 
estimated average of potential losses higher than the 99% value at 
risk threshold. See Notice, 82 FR at 57307, note 8.
    \12\ See Notice, 82 FR at 57307. A detailed description of the 
STANS methodology is available at http://optionsclearing.com/risk-management/margins/. See Notice, 82 FR at 57307, note 9.
    \13\ See Notice, 82 FR at 57307.
---------------------------------------------------------------------------

    A ``risk factor'' within OCC's margin system may be defined as a 
product or attribute whose historical data is used to estimate and 
simulate the risk for an associated product.\14\ The majority of risk 
factors utilized in the STANS methodology are total returns on 
individual equity securities. Other risk factors considered include: 
Returns on equity indexes; returns on implied volatility risk factors 
that are a set of nine chosen volatility pivots per product; changes in 
foreign exchange rates; securities underlying equity-based products; 
and changes in model parameters that sufficiently capture the model 
dynamics from a larger set of data.\15\
---------------------------------------------------------------------------

    \14\ Id.
    \15\ Id.
---------------------------------------------------------------------------

    Under OCC's current margin methodology, OCC obtains monthly price 
data for most of its equity-based products from a third-party 
vendor.\16\ These data arrive around the second week of every month in 
arrears and require approximately four weeks for OCC to process prior 
to installing into OCC's margin system.\17\ As a result, correlations 
and statistical parameters for risk factors at any point in time 
represent back-dated data and therefore may not be representative of 
the most recent market data.\18\ In the absence of daily updates, OCC 
employs an approach where one or more identified market proxies (or 
``scale-factors'') are used to incorporate day-to-day market volatility 
across all associated asset classes throughout.\19\ The scale-factor 
approach, however, assumes a perfect correlation of the volatilities 
between the security and its scale-factor, which gives little room to 
capture the idiosyncratic risk of a given security and which may be 
different from the broad market risk represented by the scale-
factor.\20\ In addition, OCC imposes a floor on volatility estimates 
for its equity-based products using a 500-day look back period.\21\
---------------------------------------------------------------------------

    \16\ Id.
    \17\ Id.
    \18\ Id.
    \19\ Id.
    \20\ Id.
    \21\ See Notice, 82 FR at 57307-57308.
     In risk management, it is a common practice to establish a 
floor for volatility at a certain level in order to protect against 
procyclicality in the model. See Notice, 82 FR at 57307-57308, note 
14.
---------------------------------------------------------------------------

    OCC believes that using monthly price data, coupled with the 
dependency of margins on scale-factors and the volatility floor can 
result in imprecise changes in margins charged to clearing members, 
specifically across periods of heavy volatility when the correlation 
between the risk factor and a scale-factor fluctuate.\22\
---------------------------------------------------------------------------

    \22\ See Notice, 82 FR at 57308.
---------------------------------------------------------------------------

    OCC's current methodology for estimating covariance and 
correlations between risk factors relies on the same monthly data 
described above, resulting in a similar lag time between updates.\23\ 
In addition, correlation estimates are based off historical returns 
series, with estimates between a pair of risk factors being highly 
sensitive to the volatility of either risk factor in the chosen 
pair.\24\ Accordingly, OCC believes that the current approach results 
in potentially less stable correlation estimates that may not be 
representative of current market conditions.\25\
---------------------------------------------------------------------------

    \23\ Id.
    \24\ Id.
    \25\ Id.
---------------------------------------------------------------------------

    In addition, under OCC's existing margin methodology, theoretical 
price scenarios for ``defaulting securities'' \26\ are simulated using 
uncorrelated return scenarios with an average zero return and a pre-
specified volatility called ``default variance.'' \27\ The default 
variance is estimated as the average of the top 25 percent quantile of 
the conditional variances of all securities.\28\ As a result, OCC 
believes that these default estimates may be impacted by extremely 
illiquid securities with discontinuous data.\29\ In addition, OCC 
believes that the default variance (and the associated scale-factors 
used to scale up volatility) is also subject to sudden jumps with the 
monthly simulation installations across successive months because it is 
derived from monthly data updates, as opposed to daily updates, which 
are prone to wider fluctuations and are subject to adjustments using 
scale-factors.\30\
---------------------------------------------------------------------------

    \26\ Within the context of OCC's margin system, securities that 
do not have enough historical data for calibration are classified as 
``defaulting securities.'' See Notice, 82 FR at 57308, note 15.
    \27\ See Notice, 82 FR at 57308.
    \28\ Id.
    \29\ Id.
    \30\ Id.
---------------------------------------------------------------------------

Proposed Changes to Current Margin Methodology \31\
---------------------------------------------------------------------------

    \31\ In addition to the proposed methodology changes described 
herein, OCC also would make some clarifying and clean-up changes, 
unrelated to the proposed changes described above, to update its 
margin methodology to reflect existing practices for the daily 
calibration of seasonal and non-seasonal energy models and the 
removal of methodology language for certain products that are no 
longer cleared by OCC. See Notice, 82 FR at 57308, note 17.
---------------------------------------------------------------------------

1. Daily Updates of Price Data
    OCC proposes to introduce daily updates for price data for equity 
products, including daily corporate action-adjusted returns of 
equities, Exchange Traded Funds (``ETFs''), Exchange Traded Notes 
(``ETNs'') and

[[Page 9763]]

certain indexes.\32\ OCC believes that the proposed change would help 
ensure that OCC's margin methodology is reliant on data that is more 
representative of current market conditions, thereby resulting in more 
accurate and responsive margin requirements.\33\ In addition, OCC 
believes that the introduction of daily price updates would enable 
OCC's margin methodology to better capture both market and 
idiosyncratic risk by allowing for daily updates to the parameters 
associated with the econometric model (discussed below) that captures 
the risk associated with a particular product, and therefore help 
ensure that OCC's margin requirements are based on more current market 
conditions.\34\ As a result, OCC would also reduce its reliance on the 
use of scale-factors to incorporate day-to-day market volatility, which 
OCC believes give little room to capture the idiosyncratic risk of a 
given security and which may be different from the broad market risk 
represented by the scale-factor.\35\
---------------------------------------------------------------------------

    \32\ See Notice, 82 FR at 57308.
    \33\ Id.
    \34\ Id.
    \35\ Id.
---------------------------------------------------------------------------

2. Proposed Enhancements to the Econometric Model
    OCC is proposing the following enhancements to its econometric 
model for calculating statistical parameters for all qualifying risk 
factors that reflect the most recent data obtained: \36\
---------------------------------------------------------------------------

    \36\ See Notice, 82 FR at 57308-57309.
---------------------------------------------------------------------------

i. Daily Updates for Statistical Parameters
    Under the proposal, the statistical parameters for the model would 
be updated on a daily basis using the new daily price data obtained by 
OCC from a reliable third-party (as described above).\37\ As a result, 
OCC would no longer need to rely on scale-factors to approximate day-
to-day market volatility for equity-based products.\38\ OCC believes 
that calibrating statistical parameters on a daily basis would allow 
OCC to calculate more accurate margin requirements that represent the 
most recent market data.\39\
---------------------------------------------------------------------------

    \37\ See Notice, 82 FR at 57309. OCC notes that this change 
would apply to most risk factors with the exception of certain 
equity indexes, Treasury securities, and energy futures products, 
which are already updated on a daily basis. See Notice, 82 FR 57309, 
at note 18.
    \38\ See Notice, 82 FR at 57309.
    \39\ Id.
---------------------------------------------------------------------------

ii. Proposed Enhancements To Capture Asymmetry in Conditional Variance
    The current approach for forecasting the conditional variance for a 
given risk factor does not consider the asymmetric volatility 
phenomenon observed in financial markets (also called the ``leverage 
effect'') where volatility is more sensitive and reactive to market 
downturns.\40\ Under the proposal, OCC would amend its econometric 
model to include new features (i.e., incorporating asymmetry into its 
forecast volatility) designed to allow the conditional volatility 
forecast to be more sensitive to market downturns and thereby capture 
the most significant dynamics of the relationship between price and 
volatility observed in financial markets.\41\ OCC believes the proposed 
enhancement would result in more accurate and responsive margin 
requirements, particularly in market downturns.\42\
---------------------------------------------------------------------------

    \40\ Id.
    \41\ Id.
    \42\ Id.
---------------------------------------------------------------------------

iii. Proposed Change in Statistical Distribution
    OCC also proposes to change the statistical distribution used to 
model the returns of equity prices. OCC's current methodology uses a 
fat tailed distribution \43\ to model returns; \44\ however, price 
scenarios generated using very large log-return scenarios (positive) 
that follow this distribution can approach infinity and could 
potentially result in excessively large price jumps, a known limitation 
of this distribution.\45\ Under the proposal, OCC would adopt a more 
defined distribution (Standardized Normal Reciprocal Inverse Gaussian 
or NRIG) for modeling returns, which OCC believes would more 
appropriately simulate future returns based on the historical price 
data for the products in question and allows for more appropriate 
modeling of fat tails.\46\ As a result, OCC believes that the proposed 
change would lead to more consistent treatment of log returns both on 
the upside as well as downside of the distribution.\47\
---------------------------------------------------------------------------

    \43\ A data set with a ``fat tail'' is one in which extreme 
price returns have a higher probability of occurrence than would be 
the case in a normal distribution. See Notice, 82 FR at 57309, note 
21.
    \44\ See Notice, 82 FR at 57309.
    \45\ Id.
    \46\ Id.
    \47\ Id.
---------------------------------------------------------------------------

iv. Second Day Volatility Forecast
    OCC further proposes to introduce a second-day forecast for 
volatility into the econometric model to estimate the two-day scenario 
distributions for risk factors.\48\ Under the current methodology, OCC 
typically uses a two-day horizon to determine its risk exposure to a 
given portfolio.\49\ This is done by simulating 10,000 theoretical 
price scenarios for the two-day horizon using a one-day forecast 
conditional variance; the value at risk and expected shortfall 
components of the margin requirement are then determined from the 
simulated profit/loss distributions.\50\ These one-day and two-day 
returns scenarios are both simulated using the one-day forecast 
conditional variance estimate.\51\ OCC believes that this could lead to 
a risk factor's coverage differing substantially on volatile trading 
days.\52\ As a result, OCC proposes to introduce a second-day forecast 
variance for all equity-based risk factors.\53\ The second-day 
conditional variance forecast would be estimated for each of the 10,000 
Monte Carlo returns scenarios, resulting in more accurately estimated 
two-day scenario distributions, and therefore more accurate and 
responsive margin requirements.\54\
---------------------------------------------------------------------------

    \48\ Id. This proposed change would not apply to STANS implied 
volatility scenario risk factors. For those risk factors, OCC's 
existing methodology would continue to apply. See Notice, 82 FR at 
57309, note 23.
    \49\ See Notice, 82 FR at 57309.
    \50\ Id.
    \51\ Id.
    \52\ Id.
    \53\ Id.
    \54\ Id.
---------------------------------------------------------------------------

v. Anti-Procyclical Floor for Volatility Estimates
    In addition, OCC proposes to modify its floor for volatility 
estimates. OCC currently imposes a floor on volatility estimates for 
its equity-based products using a 500-day look back period.\55\ Under 
the proposal, OCC would extend this look back period to 10 years (2520 
days) in the enhanced model and apply this floor to volatility 
estimates for other products (excluding implied volatility risk factor 
scenarios).\56\ OCC believes that using a longer 10-year look back 
period will help ensure that OCC captures sufficient historical events/
market shocks in the calculation of its anti-procyclical floor.\57\
---------------------------------------------------------------------------

    \55\ Id.
    \56\ Id.
    \57\ Id.
---------------------------------------------------------------------------

3. Proposed Enhancements to Correlation Estimates
    As described above, OCC's current methodology for estimating 
covariance and correlations between risk factors relies on the same 
monthly price data feeding the econometric model, resulting in a 
similar lag time between

[[Page 9764]]

updates.\58\ In addition, correlation estimates are based off 
historical returns series, with estimates between a pair of risk 
factors being highly sensitive to the volatility of either risk factor 
in the chosen pair.\59\ The current approach therefore results in 
correlation estimates being sensitive to volatile historical data.\60\
---------------------------------------------------------------------------

    \58\ See Notice, 82 FR at 57310.
    \59\ Id.
    \60\ Id.
---------------------------------------------------------------------------

    In order to address these limitations, OCC proposes to enhance its 
methodology for calculating correlation estimates by moving to a daily 
process for updating correlations (with a minimum of one-week's lag) to 
help ensure clearing member account margins are more current and thus 
more accurate.\61\ Moreover, OCC proposes to enhance its approach to 
modeling correlation estimates by de-volatizing \62\ the returns series 
to estimate the correlations.\63\ Under the proposed approach, OCC 
would first consider the returns excess of the mean (i.e., the average 
estimated from historical data sample) and then further scale them by 
the corresponding estimated conditional variances.\64\ OCC believes 
that using de-volatized returns would lead to normalizing returns 
across a variety of asset classes and make the correlation estimator 
less sensitive to sudden market jumps and therefore more stable.\65\
---------------------------------------------------------------------------

    \61\ Id.
    \62\ Id.
    \63\ Id.
    \64\ Id.
    \65\ Id.
---------------------------------------------------------------------------

4. Defaulting Securities Methodology
    Under the proposal, OCC would enhance its methodology for 
estimating the defaulting variance in its model.\66\ OCC's margin 
system is dependent on market data to determine clearing member margin 
requirements.\67\ Securities that do not have enough historical data 
are classified as to be a ``defaulting security'' within OCC 
systems.\68\ As noted above, within current STANS systems, the 
theoretical price scenarios for defaulting securities are simulated 
using uncorrelated return scenarios with a zero mean and a default 
variance, with the default variance being estimated as the average of 
the top 25 percent quantile of the conditional variances of all 
securities.\69\ As a result, these default estimates may be impacted by 
extremely illiquid securities with discontinuous data.\70\ In addition, 
the default variance (and the associated scale-factors used to scale up 
volatility) is also subject to sudden jumps with the monthly simulation 
installations across volatile months.\71\ To mitigate these concerns, 
OCC proposes to: (i) Use only optionable equity securities to estimate 
the defaulting variance; (ii) use a shorter time series to enable 
calibration of the model for all securities; and (iii) simulate default 
correlations with the driver Russell 2000 index (``RUT'').\72\
---------------------------------------------------------------------------

    \66\ Id.
    \67\ Id.
    \68\ Id.
    \69\ Id.
    \70\ Id.
    \71\ Id.
    \72\ Id.
---------------------------------------------------------------------------

i. Proposed Modifications to Securities and Quantile Used in Estimation
    Under the proposal, only optionable equity securities, which are 
typically more liquid, would be considered while estimating the default 
variance.\73\ This limitation would eliminate from the estimation 
almost all illiquid securities with discontinuous data that could 
contribute to high conditional variance estimates and thus a high 
default variance.\74\ In addition, OCC proposes to estimate the default 
variance as the lowest estimate of the top 10 percent of the floored 
conditional variance across the risk factors.\75\ OCC believes that 
this change in methodology would help ensure that while the estimate is 
aggressive it is also robust to the presence of outliers caused by a 
few extremely volatile securities that influence the location parameter 
of a distribution.\76\ Moreover, as a consequence of the daily updates 
described above, the default variances would change daily and there 
would be no scale-factor to amplify the effect of the variance on risk 
factor coverage.\77\
---------------------------------------------------------------------------

    \73\ Id.
    \74\ Id.
    \75\ Id.
    \76\ Id.
    \77\ Id.
---------------------------------------------------------------------------

ii. Proposed Change in Time Series
    Under the proposal, OCC would use a shorter time series to enable 
calibration of the model for all securities.\78\ Currently, OCC does 
not calibrate parameters for defaulting securities that have historical 
data of less than two years.\79\ OCC is proposing to shorten this time 
period to around 6 months (180 days) to enable calibration of the model 
for all securities within OCC systems.\80\ OCC believes that this 
shorter time series is sufficient to produce stable calibrated 
parameters.\81\
---------------------------------------------------------------------------

    \78\ Id.
    \79\ Id.
    \80\ Id.
    \81\ Id.
---------------------------------------------------------------------------

iii. Proposed Default Correlation
    Under the proposal, returns scenarios for defaulting securities 
\82\ would be simulated using a default correlation with the driver 
RUT.\83\ The default correlation of the RUT index is roughly equal to 
the median of all positively correlated securities with the index.\84\ 
Since 90% of the risk factors in OCC systems correlate positively to 
the RUT index, OCC would only consider those risk factors to determine 
the median.\85\ OCC believes that the median of the correlation 
distribution has been steady over a number of simulations and is 
therefore proposing that it replace the current methodology of 
simulating uncorrelated scenarios, which OCC believes is not a 
realistic approach.\86\
---------------------------------------------------------------------------

    \82\ See supra note 25.
    \83\ See Notice, 82 FR at 57310. OCC notes that, in certain 
limited circumstances where there are reasonable grounds backed by 
the existing return history to support an alternative approach in 
which the returns are strongly correlated with those of an existing 
risk factor (a ``proxy'') with a full price history, the margin 
methodology allows OCC's Financial Risk Management staff to 
construct a ``conditional'' simulation to override any default 
treatment that would have otherwise been applied to the defaulting 
security. See Notice, 82 FR at 57310, note 26.
    \84\ See Notice, 82 FR at 57310.
    \85\ Id.
    \86\ Id.
---------------------------------------------------------------------------

III. Proceedings To Determine Whether To Approve or Disapprove the 
Proposed Rule Change and Grounds for Disapproval Under Consideration

    The Commission is instituting proceedings pursuant to Section 
19(b)(2)(B) of the Act to determine whether the Proposed Rule Change 
should be approved or disapproved.\87\ Institution of proceedings is 
appropriate at this time in view of the legal and policy issues raised 
by the Proposed Rule Change. As noted above, institution of proceedings 
does not indicate that the Commission has reached any conclusions with 
respect to any of the issues involved. Rather, the Commission seeks and 
encourages interested persons to comment on the Proposed Rule Change 
and provide arguments to support the Commission's

[[Page 9765]]

analysis as to whether to approve or disapprove the proposal.
---------------------------------------------------------------------------

    \87\ 15 U.S.C. 78s(b)(2)(B) (providing that proceedings to 
determine whether to disapprove a proposed rule change must be 
concluded within 180 days of the date of publication of notice of 
the filing of the proposed rule change. The time for conclusion of 
the proceedings may be extended for up to an additional 60 days if 
the Commission finds good cause for such extension and publishes its 
reasons for so finding or if the self-regulatory organization 
consents to the extension).
---------------------------------------------------------------------------

    Pursuant to Section 19(b)(2)(B) of the Act,\88\ the Commission is 
providing notice of the grounds for disapproval under consideration. 
The Commission is instituting proceedings to allow for additional 
analysis of, and input from, commenters with respect to the Proposed 
Rule Change's consistency with the Act and the rules thereunder. 
Specifically, the Commission believes that the Proposed Rule Change 
raises questions as to whether the proposal is consistent with (i) 
Section 17A(b)(3)(F) of Act, which requires that the rules of a 
clearing agency be designed to, among other things, assure the 
safeguarding of securities and funds which are in the custody or 
control of the clearing agency or for which it is responsible; \89\ 
(ii) Rules 17Ad-22(b)(1) and (b)(2) under the Act, which require a 
registered clearing agency that performs central counterparty services 
establish, implement, maintain and enforce written policies and 
procedures reasonably designed to, in part: (1) Measure its credit 
exposures to its participants at least once a day and limit its 
exposures to potential losses from defaults by its participants under 
normal market conditions so that the operations of the clearing agency 
would not be disrupted and non-defaulting participants would not be 
exposed to losses that they cannot anticipate or control; and (2) use 
margin requirements to limit its credit exposures to participants under 
normal market conditions and use risk-based models and parameters to 
set margin requirements; \90\ and (iii) Rule 17Ad-22(e)(6) under the 
Act, which requires OCC to establish, implement, maintain and enforce 
written policies and procedures reasonably designed to cover its credit 
exposures to its participants by establishing a risk-based margin 
system that, among other things: (i) Considers, and produces margin 
levels commensurate with, the risks and particular attributes of each 
relevant product, portfolio, and market; (ii) calculates margin 
sufficient to cover its potential future exposure to participants in 
the interval between the last margin collection and the close out of 
positions following a participant default; and (iii) uses reliable 
sources of timely price data and uses procedures and sound valuation 
models for addressing circumstances in which pricing data are not 
readily available or reliable.\91\
---------------------------------------------------------------------------

    \88\ 15 U.S.C. 78s(b)(2)(B).
    \89\ 15 U.S.C. 78q-1(b)(3)(F).
    \90\ 17 CFR 240.17Ad-22(b)(1) and (2).
    \91\ 17 CFR 240.17Ad-22(e)(6).
---------------------------------------------------------------------------

IV. Request for Written Comments

    The Commission requests that interested persons provide written 
submissions of their views, data, and arguments with respect to the 
issues raised by the Proposed Rule Change. In particular, the 
Commission invites the written views of interested persons concerning 
whether the Proposed Rule Change is inconsistent with Section 
17A(b)(3)(F) of the Act \92\ and Rules 17Ad-22(b)(1)-(2) \93\ and 17Ad-
22(e)(6) \94\ under the Act, or any other provision of the Act or rules 
and regulations thereunder.
---------------------------------------------------------------------------

    \92\ 15 U.S.C. 78q-1(b)(3)(F).
    \93\ 17 CFR 240.17Ad-22(b)(1)-(2).
    \94\ 17 CFR 240.17Ad-22(e)(6).
---------------------------------------------------------------------------

    Although there do not appear to be any issues relevant to approval 
or disapproval that would be facilitated by an oral presentation of 
views, data, and arguments, the Commission will consider, pursuant to 
Rule 19b-4, any request for an opportunity to make an oral 
presentation.\95\
---------------------------------------------------------------------------

    \95\ Section 19(b)(2) of the Act, as amended by the Securities 
Acts Amendments of 1975, Public Law 94-29, 89 Stat. 97 (1975), 
grants the Commission flexibility to determine what type of 
proceeding--either oral or notice and opportunity for written 
comments--is appropriate for consideration of a particular proposal 
by a self-regulatory organization. See Securities Acts Amendments of 
1975, Report of the Senate Committee on Banking, Housing and Urban 
Affairs to Accompany S. 249, S. Rep. No. 75, 94th Cong., 1st Sess. 
30 (1975).
---------------------------------------------------------------------------

    Interested persons are invited to submit written data, views, and 
arguments regarding whether the Proposed Rule Change should be approved 
or disapproved on or before March 28, 2018. Any person who wishes to 
file a rebuttal to any other person's submission must file that 
rebuttal on or before April 11, 2018. Comments may be submitted by any 
of the following methods:

Electronic Comments

     Use the Commission's internet comment form (http://www.sec.gov/rules/sro.shtml); or
     Send an email to [email protected]. Please include 
File Number SR-OCC-2017-022 on the subject line.

Paper Comments

     Send paper comments in triplicate to Secretary, Securities 
and Exchange Commission, 100 F Street NE, Washington, DC 20549.

All submissions should refer to File Number SR-OCC-2017-022. This file 
number should be included on the subject line if email is used. To help 
the Commission process and review your comments more efficiently, 
please use only one method. The Commission will post all comments on 
the Commission's internet website (http://www.sec.gov/rules/sro.shtml). 
Copies of the submission, all subsequent amendments, all written 
statements with respect to the Proposed Rule Change that are filed with 
the Commission, and all written communications relating to the Proposed 
Rule Change between the Commission and any person, other than those 
that may be withheld from the public in accordance with the provisions 
of 5 U.S.C. 552, will be available for website viewing and printing in 
the Commission's Public Reference Room, 100 F Street NE, Washington, DC 
20549, on official business days between the hours of 10:00 a.m. and 
3:00 p.m. Copies of such filing also will be available for inspection 
and copying at the principle office of OCC. All comments received will 
be posted without change. Persons submitting comments are cautioned 
that we do not redact or edit personal identifying information from 
comment submissions. You should submit only information that you wish 
to make available publicly.
    All submissions should refer to File Number SR-OCC-2017-022 and 
should be submitted on or before March 28, 2018. If comments are 
received, any rebuttal comments should be submitted on or before April 
11, 2018.

    For the Commission, by the Division of Trading and Markets, 
pursuant to delegated authority.\96\
---------------------------------------------------------------------------

    \96\ 17 CFR 200.30-3(a)(12).
---------------------------------------------------------------------------

Robert W. Errett,
Deputy Secretary.
[FR Doc. 2018-04624 Filed 3-6-18; 8:45 am]
 BILLING CODE 8011-01-P



                                                                            Federal Register / Vol. 83, No. 45 / Wednesday, March 7, 2018 / Notices                                                      9761

                                               qualifications and expertise in both                    removal of a negotiated service                       SECURITIES AND EXCHANGE
                                               scientific and non-scientific disciplines               agreement from the market dominant or                 COMMISSION
                                               including nuclear medicine; nuclear                     the competitive product list, or the
                                                                                                                                                             [Release No. 34–82801; File No. SR–OCC–
                                               cardiology; radiation therapy; medical                  modification of an existing product                   2017–022]
                                               physics; nuclear pharmacy; State                        currently appearing on the market
                                               medical regulation; patient’s rights and                dominant or the competitive product                   Self-Regulatory Organizations; The
                                               care; health care administration; and                   list.                                                 Options Clearing Corporation; Order
                                               Food and Drug Administration                               Section II identifies the docket                   Instituting Proceedings To Determine
                                               regulation.                                             number(s) associated with each Postal                 Whether To Approve or Disapprove
                                               FOR FURTHER INFORMATION CONTACT:                        Service request, the title of each Postal             Proposed Rule Change Related to The
                                               Sophie Holiday, Office of Nuclear                       Service request, the request’s acceptance             Options Clearing Corporation’s Margin
                                               Material Safety and Safeguards, U.S.                    date, and the authority cited by the                  Methodology
                                               Nuclear Regulatory Commission,                          Postal Service for each request. For each             March 2, 2018.
                                               Washington, DC 20555; Telephone (301)                   request, the Commission appoints an
                                               415–7865; email Sophie.Holiday@                         officer of the Commission to represent                I. Introduction
                                               nrc.gov.                                                the interests of the general public in the               On November 13, 2017, The Options
                                                 Dated at Rockville, Maryland, this 1st day            proceeding, pursuant to 39 U.S.C. 505                 Clearing Corporation (‘‘OCC’’) filed with
                                               of March, 2018.                                         (Public Representative). Section II also              the Securities and Exchange
                                                 For the Nuclear Regulatory Commission.                establishes comment deadline(s)                       Commission (‘‘Commission’’) the
                                               Russell E. Chazell,
                                                                                                       pertaining to each request.                           proposed rule change SR–OCC–2017–
                                               Federal Advisory Committee Management                      The public portions of the Postal                  022 (‘‘Proposed Rule Change’’) pursuant
                                               Officer.                                                Service’s request(s) can be accessed via              to Section 19(b) of the Securities
                                               [FR Doc. 2018–04610 Filed 3–6–18; 8:45 am]              the Commission’s website (http://                     Exchange Act of 1934 (‘‘Act’’),1 and
                                               BILLING CODE 7590–01–P
                                                                                                       www.prc.gov). Non-public portions of                  Rule 19b–4 thereunder.2 The Proposed
                                                                                                       the Postal Service’s request(s), if any,              Rule Change was published for
                                                                                                       can be accessed through compliance                    comment in the Federal Register on
                                                                                                       with the requirements of 39 CFR                       December 4, 2017.3 On January 18,
                                               POSTAL REGULATORY COMMISSION
                                                                                                       3007.40.                                              2018, the Commission designated a
                                               [Docket No. CP2018–174]
                                                                                                          The Commission invites comments on                 longer period of time for Commission
                                                                                                       whether the Postal Service’s request(s)               action on the Proposed Rule Change.4
                                               New Postal Product                                                                                            As of February 20, 2018,5 the
                                                                                                       in the captioned docket(s) are consistent
                                               AGENCY:   Postal Regulatory Commission.                 with the policies of title 39. For                    Commission has received one comment
                                               ACTION:   Notice.                                       request(s) that the Postal Service states             letter on the proposal contained in the
                                                                                                       concern market dominant product(s),                   Advance Notice.6 The Commission is
                                               SUMMARY:   The Commission is noticing a                 applicable statutory and regulatory                     1 15  U.S.C. 78s(b)(1).
                                               recent Postal Service filing for the                    requirements include 39 U.S.C. 3622, 39                 2 17  CFR 240.19b–4.
                                               Commission’s consideration concerning                   U.S.C. 3642, 39 CFR part 3010, and 39                   3 Securities Exchange Act Release No. 82161
                                               negotiated service agreements. This                     CFR part 3020, subpart B. For request(s)              (Nov. 28, 2017), 82 FR 57306 (Dec. 4, 2017) (File
                                               notice informs the public of the filing,                that the Postal Service states concern                No. SR–OCC–2017–022) (‘‘Notice’’). On November
                                               invites public comment, and takes other                 competitive product(s), applicable                    13, 2017, OCC also filed a related advance notice
                                               administrative steps.                                                                                         (SR–OCC–2017–811) with the Commission
                                                                                                       statutory and regulatory requirements                 pursuant to Section 806(e)(1) of Title VIII of the
                                               DATES: Comments are due: March 9,                       include 39 U.S.C. 3632, 39 U.S.C. 3633,               Dodd-Frank Wall Street Reform and Consumer
                                               2018.                                                   39 U.S.C. 3642, 39 CFR part 3015, and                 Protection Act, entitled the Payment, Clearing, and
                                                                                                       39 CFR part 3020, subpart B. Comment                  Settlement Supervision Act of 2010 and Rule 19b–
                                               ADDRESSES: Submit comments                                                                                    4(n)(1)(i) under the Act (‘‘Advance Notice’’). 12
                                               electronically via the Commission’s                     deadline(s) for each request appear in                U.S.C. 5465(e)(1) and 17 CFR 240.19b–4(n)(1)(i),
                                               Filing Online system at http://                         section II.                                           respectively. The Advance Notice was published in
                                               www.prc.gov. Those who cannot submit                                                                          the Federal Register on December 27, 2017.
                                                                                                       II. Docketed Proceeding(s)                            Securities Exchange Act Release No. 82371 (Dec.
                                               comments electronically should contact                                                                        20, 2017), 82 FR 61354 (Dec. 27, 2017) (SR–OCC–
                                               the person identified in the FOR FURTHER                   1. Docket No(s).: CP2018–174; Filing               2017–811).
                                               INFORMATION CONTACT section by                          Title: Notice of United States Postal                   The Financial Stability Oversight Council
                                               telephone for advice on filing                          Service of Filing a Functionally                      designated OCC a systemically important financial
                                                                                                                                                             market utility on July 18, 2012. See Financial
                                               alternatives.                                           Equivalent Global Expedited Package                   Stability Oversight Council 2012 Annual Report,
                                               FOR FURTHER INFORMATION CONTACT:                        Services 7 Negotiated Service                         Appendix A, available at http://www.treasury.gov/
                                               David A. Trissell, General Counsel, at                  Agreement and Application for Non-                    initiatives/fsoc/Documents/
                                                                                                       Public Treatment of Materials Filed                   2012%20Annual%20Report.pdf. Therefore, OCC is
                                               202–789–6820.                                                                                                 required to comply with the Payment, Clearing and
                                                                                                       Under Seal; Filing Acceptance Date:
                                               SUPPLEMENTARY INFORMATION:                                                                                    Settlement Supervision Act and file advance
                                                                                                       March 1, 2018; Filing Authority: 39 CFR               notices with the Commission. See 12 U.S.C.
                                               Table of Contents                                       3015.5; Public Representative: Timothy                5465(e).
                                               I. Introduction                                         J. Schwuchow; Comments Due: March                       4 Securities Exchange Act Release No. 82534 (Jan.

                                                                                                       9, 2018.                                              18, 2018), 83 FR 3376 (Jan. 24, 2018) (File No. SR–
                                               II. Docketed Proceeding(s)
daltland on DSKBBV9HB2PROD with NOTICES




                                                                                                                                                             OCC–2017–022).
                                                                                                          This Notice will be published in the                 5 The comment period closed on December 26,
                                               I. Introduction
                                                                                                       Federal Register.                                     2017.
                                                  The Commission gives notice that the                                                                         6 See letter from Michael Kitlas, dated November

                                               Postal Service filed request(s) for the                 Stacy L. Ruble,                                       28, 2017, to Eduardo A. Aleman, Assistant
                                                                                                       Secretary.                                            Secretary, Commission, available at https://
                                               Commission to consider matters related                                                                        www.sec.gov/comments/sr-occ-2017-022/
                                               to negotiated service agreement(s). The                 [FR Doc. 2018–04615 Filed 3–6–18; 8:45 am]            occ2017022.htm (‘‘Kitlas Letter’’). After reviewing
                                               request(s) may propose the addition or                  BILLING CODE 7710–FW–P                                                                          Continued




                                          VerDate Sep<11>2014   17:30 Mar 06, 2018   Jkt 244001   PO 00000   Frm 00038   Fmt 4703   Sfmt 4703   E:\FR\FM\07MRN1.SGM   07MRN1


                                               9762                         Federal Register / Vol. 83, No. 45 / Wednesday, March 7, 2018 / Notices

                                               publishing this order to institute                      estimate and simulate the risk for an                       OCC’s current methodology for
                                               proceedings pursuant to Section                         associated product.14 The majority of                    estimating covariance and correlations
                                               19(b)(2)(B) 7 of the Act to determine                   risk factors utilized in the STANS                       between risk factors relies on the same
                                               whether to approve or disapprove the                    methodology are total returns on                         monthly data described above, resulting
                                               Proposed Rule Change.                                   individual equity securities. Other risk                 in a similar lag time between updates.23
                                                  Institution of proceedings does not                  factors considered include: Returns on                   In addition, correlation estimates are
                                               indicate that the Commission has                        equity indexes; returns on implied                       based off historical returns series, with
                                               reached any conclusions with respect to                 volatility risk factors that are a set of                estimates between a pair of risk factors
                                               the Proposed Rule Change, nor does it                   nine chosen volatility pivots per                        being highly sensitive to the volatility of
                                               mean that the Commission will                           product; changes in foreign exchange                     either risk factor in the chosen pair.24
                                               ultimately disapprove the Proposed                      rates; securities underlying equity-based                Accordingly, OCC believes that the
                                               Rule Change. Rather, as discussed                       products; and changes in model                           current approach results in potentially
                                               below, the Commission seeks additional                  parameters that sufficiently capture the                 less stable correlation estimates that
                                               input on the Proposed Rule Change and                   model dynamics from a larger set of                      may not be representative of current
                                               issues presented by the proposal.                       data.15                                                  market conditions.25
                                               II. Description of the Proposed Rule                       Under OCC’s current margin                               In addition, under OCC’s existing
                                               Change 8                                                methodology, OCC obtains monthly                         margin methodology, theoretical price
                                                                                                       price data for most of its equity-based                  scenarios for ‘‘defaulting securities’’ 26
                                               OCC’s Current Margin Methodology                                                                                 are simulated using uncorrelated return
                                                                                                       products from a third-party vendor.16
                                                  OCC’s margin methodology, the                        These data arrive around the second                      scenarios with an average zero return
                                               System for Theoretical Analysis and                     week of every month in arrears and                       and a pre-specified volatility called
                                               Numerical Simulations (‘‘STANS’’),                      require approximately four weeks for                     ‘‘default variance.’’ 27 The default
                                               calculates clearing member margin                       OCC to process prior to installing into                  variance is estimated as the average of
                                               requirements.9 STANS utilizes large-                    OCC’s margin system.17 As a result,                      the top 25 percent quantile of the
                                               scale Monte Carlo simulations to                        correlations and statistical parameters                  conditional variances of all securities.28
                                               forecast price and volatility movements                 for risk factors at any point in time                    As a result, OCC believes that these
                                               in determining a clearing member’s                      represent back-dated data and therefore                  default estimates may be impacted by
                                               margin requirement.10 The STANS                         may not be representative of the most                    extremely illiquid securities with
                                               margin requirement is calculated at the                 recent market data.18 In the absence of                  discontinuous data.29 In addition, OCC
                                               portfolio level of clearing member                      daily updates, OCC employs an                            believes that the default variance (and
                                               accounts with positions in marginable                   approach where one or more identified                    the associated scale-factors used to scale
                                               securities and consists of an estimate of               market proxies (or ‘‘scale-factors’’) are                up volatility) is also subject to sudden
                                               a 99% expected shortfall 11 over a two-                 used to incorporate day-to-day market                    jumps with the monthly simulation
                                               day time horizon and an add-on margin                   volatility across all associated asset                   installations across successive months
                                               charge for model risk (the                              classes throughout.19 The scale-factor                   because it is derived from monthly data
                                               concentration/dependence stress test                    approach, however, assumes a perfect                     updates, as opposed to daily updates,
                                               charge).12 The STANS methodology is                     correlation of the volatilities between                  which are prone to wider fluctuations
                                               used to measure the exposure of                         the security and its scale-factor, which                 and are subject to adjustments using
                                               portfolios of options and futures cleared               gives little room to capture the                         scale-factors.30
                                               by OCC and cash instruments in margin                   idiosyncratic risk of a given security and
                                               collateral.13                                                                                                    Proposed Changes to Current Margin
                                                                                                       which may be different from the broad                    Methodology 31
                                                  A ‘‘risk factor’’ within OCC’s margin
                                                                                                       market risk represented by the scale-
                                               system may be defined as a product or                                                                            1. Daily Updates of Price Data
                                                                                                       factor.20 In addition, OCC imposes a
                                               attribute whose historical data is used to
                                                                                                       floor on volatility estimates for its                      OCC proposes to introduce daily
                                               the Kitlas Letter, the Commission believes that it is
                                                                                                       equity-based products using a 500-day                    updates for price data for equity
                                               nonresponsive to the Proposed Rule Change and           look back period.21                                      products, including daily corporate
                                               therefore outside the scope of the proposal.               OCC believes that using monthly                       action-adjusted returns of equities,
                                                  Since the proposal contained in the Proposed                                                                  Exchange Traded Funds (‘‘ETFs’’),
                                               Rule Change was also filed as an Advance Notice,
                                                                                                       price data, coupled with the
                                               the Commission considered all public comments           dependency of margins on scale-factors                   Exchange Traded Notes (‘‘ETNs’’) and
                                               received on the proposal regardless of whether the      and the volatility floor can result in
                                               comments were submitted on the Proposed Rule            imprecise changes in margins charged to                    23 Id.

                                               Change or the Advance Notice.                                                                                      24 Id.
                                                  7 15 U.S.C. 78s(b)(2)(B).
                                                                                                       clearing members, specifically across                      25 Id.
                                                  8 The description of the Proposed Rule Change is     periods of heavy volatility when the                       26 Within the context of OCC’s margin system,
                                               substantially excerpted from the Notice. See Notice,    correlation between the risk factor and                  securities that do not have enough historical data
                                               82 FR at 57306–57313.                                   a scale-factor fluctuate.22                              for calibration are classified as ‘‘defaulting
                                                  9 See Securities Exchange Act Release No. 53322                                                               securities.’’ See Notice, 82 FR at 57308, note 15.
                                               (Feb. 15, 2006), 71 FR 9403 (Feb. 23, 2006) (File No.     14 Id.
                                                                                                                                                                  27 See Notice, 82 FR at 57308.
                                               SR–OCC–2004–20).                                          15 Id.
                                                                                                                                                                  28 Id.
                                                  10 See OCC Rule 601; see also Notice, 82 FR at                                                                  29 Id.
                                                                                                         16 Id.
                                               57307.                                                                                                             30 Id.
                                                                                                         17 Id.
                                                  11 See Notice, 82 FR at 57307.
                                                                                                                                                                  31 In addition to the proposed methodology
                                                                                                         18 Id.
daltland on DSKBBV9HB2PROD with NOTICES




                                                  The expected shortfall component is established                                                               changes described herein, OCC also would make
                                                                                                         19 Id.
                                               as the estimated average of potential losses higher                                                              some clarifying and clean-up changes, unrelated to
                                                                                                         20 Id.
                                               than the 99% value at risk threshold. See Notice,                                                                the proposed changes described above, to update its
                                               82 FR at 57307, note 8.                                   21 See Notice, 82 FR at 57307–57308.                   margin methodology to reflect existing practices for
                                                  12 See Notice, 82 FR at 57307. A detailed              In risk management, it is a common practice to         the daily calibration of seasonal and non-seasonal
                                               description of the STANS methodology is available       establish a floor for volatility at a certain level in   energy models and the removal of methodology
                                               at http://optionsclearing.com/risk-management/          order to protect against procyclicality in the model.    language for certain products that are no longer
                                               margins/. See Notice, 82 FR at 57307, note 9.           See Notice, 82 FR at 57307–57308, note 14.               cleared by OCC. See Notice, 82 FR at 57308, note
                                                  13 See Notice, 82 FR at 57307.                         22 See Notice, 82 FR at 57308.                         17.



                                          VerDate Sep<11>2014   17:30 Mar 06, 2018   Jkt 244001   PO 00000   Frm 00039   Fmt 4703   Sfmt 4703   E:\FR\FM\07MRN1.SGM        07MRN1


                                                                              Federal Register / Vol. 83, No. 45 / Wednesday, March 7, 2018 / Notices                                                      9763

                                               certain indexes.32 OCC believes that the                  ii. Proposed Enhancements To Capture                  two-day scenario distributions for risk
                                               proposed change would help ensure                         Asymmetry in Conditional Variance                     factors.48 Under the current
                                               that OCC’s margin methodology is                             The current approach for forecasting               methodology, OCC typically uses a two-
                                               reliant on data that is more                              the conditional variance for a given risk             day horizon to determine its risk
                                               representative of current market                          factor does not consider the asymmetric               exposure to a given portfolio.49 This is
                                               conditions, thereby resulting in more                     volatility phenomenon observed in                     done by simulating 10,000 theoretical
                                               accurate and responsive margin                            financial markets (also called the                    price scenarios for the two-day horizon
                                               requirements.33 In addition, OCC                          ‘‘leverage effect’’) where volatility is              using a one-day forecast conditional
                                               believes that the introduction of daily                   more sensitive and reactive to market                 variance; the value at risk and expected
                                                                                                         downturns.40 Under the proposal, OCC                  shortfall components of the margin
                                               price updates would enable OCC’s
                                                                                                         would amend its econometric model to                  requirement are then determined from
                                               margin methodology to better capture
                                                                                                         include new features (i.e., incorporating             the simulated profit/loss distributions.50
                                               both market and idiosyncratic risk by                                                                           These one-day and two-day returns
                                               allowing for daily updates to the                         asymmetry into its forecast volatility)
                                                                                                         designed to allow the conditional                     scenarios are both simulated using the
                                               parameters associated with the                                                                                  one-day forecast conditional variance
                                               econometric model (discussed below)                       volatility forecast to be more sensitive to
                                                                                                         market downturns and thereby capture                  estimate.51 OCC believes that this could
                                               that captures the risk associated with a                                                                        lead to a risk factor’s coverage differing
                                                                                                         the most significant dynamics of the
                                               particular product, and therefore help                                                                          substantially on volatile trading days.52
                                                                                                         relationship between price and
                                               ensure that OCC’s margin requirements                                                                           As a result, OCC proposes to introduce
                                                                                                         volatility observed in financial
                                               are based on more current market                          markets.41 OCC believes the proposed                  a second-day forecast variance for all
                                               conditions.34 As a result, OCC would                      enhancement would result in more                      equity-based risk factors.53 The second-
                                               also reduce its reliance on the use of                    accurate and responsive margin                        day conditional variance forecast would
                                               scale-factors to incorporate day-to-day                   requirements, particularly in market                  be estimated for each of the 10,000
                                               market volatility, which OCC believes                     downturns.42                                          Monte Carlo returns scenarios, resulting
                                               give little room to capture the                                                                                 in more accurately estimated two-day
                                               idiosyncratic risk of a given security and                iii. Proposed Change in Statistical                   scenario distributions, and therefore
                                               which may be different from the broad                     Distribution                                          more accurate and responsive margin
                                               market risk represented by the scale-                        OCC also proposes to change the                    requirements.54
                                               factor.35                                                 statistical distribution used to model the            v. Anti-Procyclical Floor for Volatility
                                                                                                         returns of equity prices. OCC’s current               Estimates
                                               2. Proposed Enhancements to the                           methodology uses a fat tailed
                                               Econometric Model                                         distribution 43 to model returns; 44                     In addition, OCC proposes to modify
                                                                                                         however, price scenarios generated                    its floor for volatility estimates. OCC
                                                  OCC is proposing the following                         using very large log-return scenarios                 currently imposes a floor on volatility
                                               enhancements to its econometric model                     (positive) that follow this distribution              estimates for its equity-based products
                                               for calculating statistical parameters for                can approach infinity and could                       using a 500-day look back period.55
                                               all qualifying risk factors that reflect the              potentially result in excessively large               Under the proposal, OCC would extend
                                               most recent data obtained: 36                             price jumps, a known limitation of this               this look back period to 10 years (2520
                                                                                                         distribution.45 Under the proposal, OCC               days) in the enhanced model and apply
                                               i. Daily Updates for Statistical                                                                                this floor to volatility estimates for other
                                               Parameters                                                would adopt a more defined
                                                                                                         distribution (Standardized Normal                     products (excluding implied volatility
                                                                                                         Reciprocal Inverse Gaussian or NRIG)                  risk factor scenarios).56 OCC believes
                                                  Under the proposal, the statistical
                                                                                                         for modeling returns, which OCC                       that using a longer 10-year look back
                                               parameters for the model would be                                                                               period will help ensure that OCC
                                               updated on a daily basis using the new                    believes would more appropriately
                                                                                                         simulate future returns based on the                  captures sufficient historical events/
                                               daily price data obtained by OCC from                                                                           market shocks in the calculation of its
                                               a reliable third-party (as described                      historical price data for the products in
                                                                                                         question and allows for more                          anti-procyclical floor.57
                                               above).37 As a result, OCC would no
                                               longer need to rely on scale-factors to                   appropriate modeling of fat tails.46 As a             3. Proposed Enhancements to
                                                                                                         result, OCC believes that the proposed                Correlation Estimates
                                               approximate day-to-day market
                                                                                                         change would lead to more consistent                     As described above, OCC’s current
                                               volatility for equity-based products.38
                                                                                                         treatment of log returns both on the                  methodology for estimating covariance
                                               OCC believes that calibrating statistical
                                                                                                         upside as well as downside of the                     and correlations between risk factors
                                               parameters on a daily basis would allow                   distribution.47
                                               OCC to calculate more accurate margin                                                                           relies on the same monthly price data
                                               requirements that represent the most                      iv. Second Day Volatility Forecast                    feeding the econometric model,
                                               recent market data.39                                       OCC further proposes to introduce a                 resulting in a similar lag time between
                                                                                                         second-day forecast for volatility into                 48 Id. This proposed change would not apply to
                                                 32 See   Notice, 82 FR at 57308.                        the econometric model to estimate the                 STANS implied volatility scenario risk factors. For
                                                 33 Id.
                                                                                                                                                               those risk factors, OCC’s existing methodology
                                                 34 Id.                                                    40 Id.                                              would continue to apply. See Notice, 82 FR at
                                                 35 Id.                                                    41 Id.                                              57309, note 23.
                                                 36 See                                                                                                          49 See Notice, 82 FR at 57309.
                                                        Notice, 82 FR at 57308–57309.                      42 Id.
daltland on DSKBBV9HB2PROD with NOTICES




                                                 37 See Notice, 82 FR at 57309. OCC notes that this                                                              50 Id.
                                                                                                           43 A data set with a ‘‘fat tail’’ is one in which
                                                                                                                                                                 51 Id.
                                               change would apply to most risk factors with the          extreme price returns have a higher probability of
                                                                                                                                                                 52 Id.
                                               exception of certain equity indexes, Treasury             occurrence than would be the case in a normal
                                               securities, and energy futures products, which are        distribution. See Notice, 82 FR at 57309, note 21.      53 Id.

                                               already updated on a daily basis. See Notice, 82 FR         44 See Notice, 82 FR at 57309.                        54 Id.

                                               57309, at note 18.                                          45 Id.                                                55 Id.
                                                 38 See Notice, 82 FR at 57309.                            46 Id.                                                56 Id.
                                                 39 Id.                                                    47 Id.                                                57 Id.




                                          VerDate Sep<11>2014     17:30 Mar 06, 2018   Jkt 244001   PO 00000   Frm 00040   Fmt 4703   Sfmt 4703   E:\FR\FM\07MRN1.SGM   07MRN1


                                               9764                           Federal Register / Vol. 83, No. 45 / Wednesday, March 7, 2018 / Notices

                                               updates.58 In addition, correlation                       securities with discontinuous data.70 In              shorter time series is sufficient to
                                               estimates are based off historical returns                addition, the default variance (and the               produce stable calibrated parameters.81
                                               series, with estimates between a pair of                  associated scale-factors used to scale up
                                               risk factors being highly sensitive to the                volatility) is also subject to sudden                 iii. Proposed Default Correlation
                                               volatility of either risk factor in the                   jumps with the monthly simulation                        Under the proposal, returns scenarios
                                               chosen pair.59 The current approach                       installations across volatile months.71               for defaulting securities 82 would be
                                               therefore results in correlation estimates                To mitigate these concerns, OCC                       simulated using a default correlation
                                               being sensitive to volatile historical                    proposes to: (i) Use only optionable                  with the driver RUT.83 The default
                                               data.60                                                   equity securities to estimate the                     correlation of the RUT index is roughly
                                                  In order to address these limitations,                 defaulting variance; (ii) use a shorter               equal to the median of all positively
                                               OCC proposes to enhance its                               time series to enable calibration of the              correlated securities with the index.84
                                               methodology for calculating correlation                   model for all securities; and (iii)                   Since 90% of the risk factors in OCC
                                               estimates by moving to a daily process                    simulate default correlations with the                systems correlate positively to the RUT
                                               for updating correlations (with a                         driver Russell 2000 index (‘‘RUT’’).72                index, OCC would only consider those
                                               minimum of one-week’s lag) to help                                                                              risk factors to determine the median.85
                                               ensure clearing member account                            i. Proposed Modifications to Securities
                                                                                                         and Quantile Used in Estimation                       OCC believes that the median of the
                                               margins are more current and thus more                                                                          correlation distribution has been steady
                                               accurate.61 Moreover, OCC proposes to                       Under the proposal, only optionable                 over a number of simulations and is
                                               enhance its approach to modeling                          equity securities, which are typically                therefore proposing that it replace the
                                               correlation estimates by de-volatizing 62                 more liquid, would be considered while                current methodology of simulating
                                               the returns series to estimate the                        estimating the default variance.73 This               uncorrelated scenarios, which OCC
                                               correlations.63 Under the proposed                        limitation would eliminate from the                   believes is not a realistic approach.86
                                               approach, OCC would first consider the                    estimation almost all illiquid securities
                                               returns excess of the mean (i.e., the                                                                           III. Proceedings To Determine Whether
                                                                                                         with discontinuous data that could
                                               average estimated from historical data                                                                          To Approve or Disapprove the
                                                                                                         contribute to high conditional variance
                                               sample) and then further scale them by                                                                          Proposed Rule Change and Grounds for
                                                                                                         estimates and thus a high default
                                               the corresponding estimated conditional                                                                         Disapproval Under Consideration
                                                                                                         variance.74 In addition, OCC proposes to
                                               variances.64 OCC believes that using de-                  estimate the default variance as the
                                               volatized returns would lead to                                                                                    The Commission is instituting
                                                                                                         lowest estimate of the top 10 percent of              proceedings pursuant to Section
                                               normalizing returns across a variety of                   the floored conditional variance across
                                               asset classes and make the correlation                                                                          19(b)(2)(B) of the Act to determine
                                                                                                         the risk factors.75 OCC believes that this            whether the Proposed Rule Change
                                               estimator less sensitive to sudden                        change in methodology would help
                                               market jumps and therefore more                                                                                 should be approved or disapproved.87
                                                                                                         ensure that while the estimate is                     Institution of proceedings is appropriate
                                               stable.65
                                                                                                         aggressive it is also robust to the                   at this time in view of the legal and
                                               4. Defaulting Securities Methodology                      presence of outliers caused by a few                  policy issues raised by the Proposed
                                                                                                         extremely volatile securities that                    Rule Change. As noted above,
                                                  Under the proposal, OCC would                          influence the location parameter of a                 institution of proceedings does not
                                               enhance its methodology for estimating                    distribution.76 Moreover, as a                        indicate that the Commission has
                                               the defaulting variance in its model.66
                                                                                                         consequence of the daily updates                      reached any conclusions with respect to
                                               OCC’s margin system is dependent on
                                                                                                         described above, the default variances                any of the issues involved. Rather, the
                                               market data to determine clearing
                                                                                                         would change daily and there would be                 Commission seeks and encourages
                                               member margin requirements.67
                                                                                                         no scale-factor to amplify the effect of              interested persons to comment on the
                                               Securities that do not have enough
                                                                                                         the variance on risk factor coverage.77               Proposed Rule Change and provide
                                               historical data are classified as to be a
                                                                                                                                                               arguments to support the Commission’s
                                               ‘‘defaulting security’’ within OCC                        ii. Proposed Change in Time Series
                                               systems.68 As noted above, within                                                                                 81 Id.
                                               current STANS systems, the theoretical                       Under the proposal, OCC would use
                                                                                                                                                                 82 See  supra note 25.
                                               price scenarios for defaulting securities                 a shorter time series to enable                         83 See  Notice, 82 FR at 57310. OCC notes that, in
                                               are simulated using uncorrelated return                   calibration of the model for all                      certain limited circumstances where there are
                                               scenarios with a zero mean and a                          securities.78 Currently, OCC does not                 reasonable grounds backed by the existing return
                                               default variance, with the default                        calibrate parameters for defaulting                   history to support an alternative approach in which
                                                                                                         securities that have historical data of               the returns are strongly correlated with those of an
                                               variance being estimated as the average                                                                         existing risk factor (a ‘‘proxy’’) with a full price
                                               of the top 25 percent quantile of the                     less than two years.79 OCC is proposing               history, the margin methodology allows OCC’s
                                               conditional variances of all securities.69                to shorten this time period to around 6               Financial Risk Management staff to construct a
                                               As a result, these default estimates may                  months (180 days) to enable calibration               ‘‘conditional’’ simulation to override any default
                                                                                                         of the model for all securities within                treatment that would have otherwise been applied
                                               be impacted by extremely illiquid                                                                               to the defaulting security. See Notice, 82 FR at
                                                                                                         OCC systems.80 OCC believes that this                 57310, note 26.
                                                 58 See   Notice, 82 FR at 57310.                                                                                 84 See Notice, 82 FR at 57310.
                                                 59 Id.                                                    70 Id.                                                 85 Id.
                                                 60 Id.                                                    71 Id.                                                 86 Id.
                                                 61 Id.                                                    72 Id.                                                 87 15 U.S.C. 78s(b)(2)(B) (providing that
daltland on DSKBBV9HB2PROD with NOTICES




                                                 62 Id.                                                    73 Id.                                              proceedings to determine whether to disapprove a
                                                 63 Id.                                                    74 Id.                                              proposed rule change must be concluded within
                                                 64 Id.                                                    75 Id.                                              180 days of the date of publication of notice of the
                                                 65 Id.                                                    76 Id.                                              filing of the proposed rule change. The time for
                                                 66 Id.                                                    77 Id.
                                                                                                                                                               conclusion of the proceedings may be extended for
                                                                                                                                                               up to an additional 60 days if the Commission finds
                                                 67 Id.                                                    78 Id.
                                                                                                                                                               good cause for such extension and publishes its
                                                 68 Id.                                                    79 Id.
                                                                                                                                                               reasons for so finding or if the self-regulatory
                                                 69 Id.                                                    80 Id.                                              organization consents to the extension).



                                          VerDate Sep<11>2014     17:30 Mar 06, 2018   Jkt 244001   PO 00000   Frm 00041   Fmt 4703   Sfmt 4703   E:\FR\FM\07MRN1.SGM     07MRN1


                                                                            Federal Register / Vol. 83, No. 45 / Wednesday, March 7, 2018 / Notices                                                    9765

                                               analysis as to whether to approve or                    IV. Request for Written Comments                       internet website (http://www.sec.gov/
                                               disapprove the proposal.                                  The Commission requests that                         rules/sro.shtml). Copies of the
                                                  Pursuant to Section 19(b)(2)(B) of the               interested persons provide written                     submission, all subsequent
                                               Act,88 the Commission is providing                      submissions of their views, data, and                  amendments, all written statements
                                               notice of the grounds for disapproval                   arguments with respect to the issues                   with respect to the Proposed Rule
                                               under consideration. The Commission is                  raised by the Proposed Rule Change. In                 Change that are filed with the
                                               instituting proceedings to allow for                    particular, the Commission invites the                 Commission, and all written
                                               additional analysis of, and input from,                 written views of interested persons                    communications relating to the
                                               commenters with respect to the                          concerning whether the Proposed Rule                   Proposed Rule Change between the
                                               Proposed Rule Change’s consistency                      Change is inconsistent with Section                    Commission and any person, other than
                                               with the Act and the rules thereunder.                  17A(b)(3)(F) of the Act 92 and Rules                   those that may be withheld from the
                                               Specifically, the Commission believes                   17Ad–22(b)(1)–(2) 93 and 17Ad–                         public in accordance with the
                                               that the Proposed Rule Change raises                    22(e)(6) 94 under the Act, or any other                provisions of 5 U.S.C. 552, will be
                                               questions as to whether the proposal is                 provision of the Act or rules and                      available for website viewing and
                                               consistent with (i) Section 17A(b)(3)(F)                regulations thereunder.                                printing in the Commission’s Public
                                               of Act, which requires that the rules of                  Although there do not appear to be                   Reference Room, 100 F Street NE,
                                               a clearing agency be designed to, among                 any issues relevant to approval or                     Washington, DC 20549, on official
                                               other things, assure the safeguarding of                disapproval that would be facilitated by               business days between the hours of
                                               securities and funds which are in the                   an oral presentation of views, data, and               10:00 a.m. and 3:00 p.m. Copies of such
                                               custody or control of the clearing agency               arguments, the Commission will                         filing also will be available for
                                               or for which it is responsible; 89 (ii)                 consider, pursuant to Rule 19b–4, any                  inspection and copying at the principle
                                               Rules 17Ad–22(b)(1) and (b)(2) under                    request for an opportunity to make an                  office of OCC. All comments received
                                               the Act, which require a registered                     oral presentation.95                                   will be posted without change. Persons
                                               clearing agency that performs central                     Interested persons are invited to                    submitting comments are cautioned that
                                               counterparty services establish,                        submit written data, views, and                        we do not redact or edit personal
                                               implement, maintain and enforce                         arguments regarding whether the                        identifying information from comment
                                               written policies and procedures                         Proposed Rule Change should be                         submissions. You should submit only
                                               reasonably designed to, in part: (1)                    approved or disapproved on or before                   information that you wish to make
                                               Measure its credit exposures to its                     March 28, 2018. Any person who                         available publicly.
                                               participants at least once a day and limit              wishes to file a rebuttal to any other                    All submissions should refer to File
                                               its exposures to potential losses from                  person’s submission must file that                     Number SR–OCC–2017–022 and should
                                               defaults by its participants under                      rebuttal on or before April 11, 2018.                  be submitted on or before March 28,
                                               normal market conditions so that the                    Comments may be submitted by any of                    2018. If comments are received, any
                                               operations of the clearing agency would                 the following methods:                                 rebuttal comments should be submitted
                                               not be disrupted and non-defaulting                                                                            on or before April 11, 2018.
                                               participants would not be exposed to                    Electronic Comments
                                                                                                                                                                For the Commission, by the Division of
                                               losses that they cannot anticipate or                     • Use the Commission’s internet                      Trading and Markets, pursuant to delegated
                                               control; and (2) use margin                             comment form (http://www.sec.gov/                      authority.96
                                               requirements to limit its credit                        rules/sro.shtml); or                                   Robert W. Errett,
                                               exposures to participants under normal                    • Send an email to rule-comments@                    Deputy Secretary.
                                               market conditions and use risk-based                    sec.gov. Please include File Number SR–                [FR Doc. 2018–04624 Filed 3–6–18; 8:45 am]
                                               models and parameters to set margin                     OCC–2017–022 on the subject line.                      BILLING CODE 8011–01–P
                                               requirements; 90 and (iii) Rule 17Ad–
                                               22(e)(6) under the Act, which requires                  Paper Comments
                                               OCC to establish, implement, maintain                     • Send paper comments in triplicate                  SECURITIES AND EXCHANGE
                                               and enforce written policies and                        to Secretary, Securities and Exchange                  COMMISSION
                                               procedures reasonably designed to cover                 Commission, 100 F Street NE,
                                               its credit exposures to its participants by             Washington, DC 20549.                                  [Release No. 34–82796; File No. SR–NYSE–
                                                                                                                                                              2017–42]
                                               establishing a risk-based margin system                 All submissions should refer to File
                                               that, among other things: (i) Considers,                Number SR–OCC–2017–022. This file                      Self-Regulatory Organizations; New
                                               and produces margin levels                              number should be included on the                       York Stock Exchange LLC; Order
                                               commensurate with, the risks and                        subject line if email is used. To help the             Granting Approval of Proposed Rule
                                               particular attributes of each relevant                  Commission process and review your                     Change To Amend the NYSE Listed
                                               product, portfolio, and market; (ii)                    comments more efficiently, please use                  Company Manual To Modify Its
                                               calculates margin sufficient to cover its               only one method. The Commission will                   Requirements With Respect to
                                               potential future exposure to participants               post all comments on the Commission’s                  Physical Delivery of Proxy Materials to
                                               in the interval between the last margin                                                                        the Exchange
                                               collection and the close out of positions                 92 15  U.S.C. 78q–1(b)(3)(F).
                                               following a participant default; and (iii)                93 17  CFR 240.17Ad–22(b)(1)–(2).                    March 1, 2018.
                                                                                                          94 17 CFR 240.17Ad–22(e)(6).
                                               uses reliable sources of timely price data                                                                     I. Introduction
                                                                                                          95 Section 19(b)(2) of the Act, as amended by the
                                               and uses procedures and sound                           Securities Acts Amendments of 1975, Public Law
                                               valuation models for addressing                                                                                   On November 22, 2017, New York
daltland on DSKBBV9HB2PROD with NOTICES




                                                                                                       94–29, 89 Stat. 97 (1975), grants the Commission
                                               circumstances in which pricing data are                 flexibility to determine what type of proceeding—      Stock Exchange LLC (‘‘NYSE’’ or the
                                               not readily available or reliable.91                    either oral or notice and opportunity for written      ‘‘Exchange’’) filed with the Securities
                                                                                                       comments—is appropriate for consideration of a         and Exchange Commission (‘‘SEC’’ or
                                                 88 15
                                                                                                       particular proposal by a self-regulatory               ‘‘Commission’’), pursuant to Section
                                                       U.S.C. 78s(b)(2)(B).                            organization. See Securities Acts Amendments of
                                                 89 15 U.S.C. 78q–1(b)(3)(F).                          1975, Report of the Senate Committee on Banking,       19(b)(1) of the Securities Exchange Act
                                                 90 17 CFR 240.17Ad–22(b)(1) and (2).
                                                                                                       Housing and Urban Affairs to Accompany S. 249,
                                                 91 17 CFR 240.17Ad–22(e)(6).                          S. Rep. No. 75, 94th Cong., 1st Sess. 30 (1975).         96 17   CFR 200.30–3(a)(12).



                                          VerDate Sep<11>2014   17:30 Mar 06, 2018   Jkt 244001   PO 00000   Frm 00042   Fmt 4703   Sfmt 4703   E:\FR\FM\07MRN1.SGM      07MRN1



Document Created: 2018-03-07 01:27:29
Document Modified: 2018-03-07 01:27:29
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionNotices
FR Citation83 FR 9761 

2025 Federal Register | Disclaimer | Privacy Policy
USC | CFR | eCFR