Pursuant to Section 19(b)(1) ^[1] of the Securities Exchange Act of 1934 (the “Act”) ^[2] and Rule 19b-4 thereunder,^[3] notice is hereby given that on July 28, 2026, the Investors Exchange LLC (“IEX” or the “Exchange”) filed with the Securities and Exchange Commission (the “Commission”) the proposed rule change as described in Items I and II below, which Items have been prepared by the self-regulatory organization. The Commission is publishing this notice to solicit comments on the proposed rule change from interested persons.

I. Self-Regulatory Organization's Statement of the Terms of Substance of the Proposed Rule Change

Pursuant to the provisions of Section 19(b)(1) under the Act,^[4] and Rule 19b-4 thereunder,^[5] the Exchange is filing with the Commission a proposal to extend the implementation timeframe of a recent rule filing. The Exchange has designated this proposal as non-controversial and provided the Commission with the notice required by Rule 19b-4(f)(6)(iii) under the Act.^[6]

The text of the proposed rule change is available at the Exchange's website at https://www.iexexchange.io/​resources/​regulation/​rule-filings and at the principal office of the Exchange.

II. Self-Regulatory Organization's Statement of the Purpose of, and the Statutory Basis for, the Proposed Rule Change

In its filing with the Commission, the self-regulatory organization included statements concerning the purpose of and basis for the proposed rule change and discussed any comments it received on the proposed rule change. The text of these statements may be examined at the places specified in Item IV below. The self-regulatory organization has prepared summaries, set forth in Sections A, B, and C below, of the most significant aspects of such statements.

A. Self-Regulatory Organization's Statement of the Purpose of, and the Statutory Basis for, the Proposed Rule Change

1. Purpose

IEX is filing this proposal to extend the implementation timeframe of the rule changes proposed in SR-IEX-2026-14.^[7] Pursuant to the Original Rule Filing, the Exchange will announce the implementation date of the proposed rule change by Trading Alert at least ten days in advance of such implementation date and within 90 days of effectiveness of the proposed rule change.^[8] The Original Rule Filing was immediately effective on the date of filing, April 30, 2026, which means the Trading Alert should issue no later than 90 days later, i.e., on July 29, 2026. In order to complete all steps in IEX's standard deployment schedule, IEX has determined that it requires slightly more time than provided for by the Original Rule Filing to determine the implementation date and issue a Trading Alert announcing such date. Thus, IEX now proposes extending the July 29, 2026 Trading Alert deadline by 30 days, to Friday, August 28, 2026.

As proposed, on or before August 28, 2026, IEX will still announce the implementation date by Trading Alert at least ten days in advance of such implementation date. Besides this change, the Exchange is not proposing to make any changes to the terms of the Original Rule Filing.

2. Statutory Basis

IEX believes that its proposal is consistent with the provisions of Section 6(b) of the Act ^[9] in general, and with Section 6(b)(5) of the Act,^[10] in particular, in that it is designed to promote just and equitable principles of trade, to remove impediments to and perfect the mechanism of a free and open market and a national market system and, in general, to protect investors and the public interest. Specifically, the proposal is consistent with the Act because it is designed to protect investors and the public interest because it will enable the Exchange to determine the implementation date of the Original Rule Filing following completion of all steps in its standard deployment schedule in a thorough and risk averse manner, before issuance of a Trading Alert announcing such date.

Further, the ten days' notice to market participants of the implementation date for the Original Rule Filing's proposed rule change is consistent with the Act because it will provide appropriate transparency to market participants and the Commission regarding the change. Finally, as noted in the Purpose section, the Exchange is not proposing to make any changes to the terms of the Original Rule Filing other than the implementation timeframe.

B. Self-Regulatory Organization's Statement on Burden on Competition

IEX does not believe that the proposal will result in any burden on competition that is not necessary or appropriate in furtherance of the purposes of the Act. As explained above, the purpose of this proposal is to modify the timing of the issuance of the Trading Alert announcing the planned implementation of the Original Rule Filing with appropriate notice to inform market participants and the Commission of the change. The implementation delay will impact all market participants equally. The Exchange does not expect the implementation date ( printed page 48967) change to place any burden on competition. Rather, postponing implementation will allow the Exchange to implement the original rule change in a thorough and risk averse manner and is not designed for any competitive purpose.

C. Self-Regulatory Organization's Statement on Comments on the Proposed Rule Change Received From Members, Participants, or Others

Written comments were neither solicited nor received.

III. Date of Effectiveness of the Proposed Rule Change and Timing for Commission Action

The Exchange has filed the proposed rule change pursuant to Section 19(b)(3)(A) of the Act ^[11] and Rule 19b-4(f)(6) ^[12] thereunder. Because the foregoing proposed rule change does not: (i) significantly affect the protection of investors or the public interest; (ii) impose any significant burden on competition; or (iii) become operative for 30 days from the date on which it was filed, or such shorter time as the Commission may designate, it has become effective pursuant to Section 19(b)(3)(A) of the Act ^[13] and Rule 19b-4(f)(6) ^[14] thereunder.

A proposed rule change filed under Rule 19b-4(f)(6) ^[15] normally does not become operative prior to 30 days after the date of the filing. However, pursuant to Rule 19b-4(f)(6)(iii),^[16] the Commission may designate a shorter time if such action is consistent with protection of investors and the public interest. The Exchange has asked the Commission to waive the 30-day operative delay so that the proposed rule change may become operative immediately upon filing. According to the Exchange, waiving the 30-day delay would permit the Exchange to implement this proposal on or prior to July 29, 2026, the date by which the Original Rule Filing requires the Exchange to issue a Trading Alert. Waiver of the 30-day operative delay is consistent with the protection of investors and the public interest because the proposal provides clarity and prevents potential confusion for market participants about the implementation timeframe of the rule changes proposed in SR-IEX-2026-14, and does not introduce any novel regulatory issues. Accordingly, the Commission designates the proposed rule change to be operative upon filing.^[17]

At any time within 60 days of the filing of the proposed rule change, the Commission summarily may temporarily suspend such rule change if it appears to the Commission that such action is necessary or appropriate in the public interest, for the protection of investors, or otherwise in furtherance of the purposes of the Act. If the Commission takes such action, the Commission will institute proceedings to determine whether the proposed rule change should be approved or disapproved.

IV. Solicitation of Comments

Interested persons are invited to submit written data, views and arguments concerning the foregoing, including whether the proposed rule change is consistent with the Act. Comments may be submitted by any of the following methods:

Electronic Comments

• Use the Commission's internet comment form (https://www.sec.gov/​rules/​sro.shtml); or
• Send an email torule-comments@sec.gov. Please include file number SR-IEX-2026-24 on the subject line.

Paper Comments

• Send paper comments in triplicate to Secretary, Securities and Exchange Commission, 100 F Street NE, Washington, DC 20549-1090.

All submissions should refer to file number SR-IEX-2026-24. 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 ( https://www.sec.gov/​rules/​sro.shtml). Copies of the filing will be available for inspection and copying at the principal office of the Exchange. Do not include personal identifiable information in submissions; you should submit only information that you wish to make available publicly. We may redact in part or withhold entirely from publication submitted material that is obscene or subject to copyright protection. All submissions should refer to file number SR-IEX-2026-24 and should be submitted on or before August 24, 2026.