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 August 13, 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 proposed rule change to correct an internal cross-reference error in Rule 23.150, which was inadvertently introduced by a recent rule change. The Exchange has designated this rule change as “non-controversial” under Section 19(b)(3)(A) of the Act ^[6] and provided the Commission with the notice required by Rule 19b-4(f)(6) thereunder.^[7]

The text of the proposed rule change is available at the Exchange's website at 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 ( printed page 54769) 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

The Exchange makes this filing to correct an internal cross-reference error in IEX 23.150, which was inadvertently introduced by a recent rule change.

Currently, Rule 23.150(h)(1) refers to “Away Markets (as defined by 22.160(a)(8),” when the definition of “Away Markets” it is cross-referencing is in Rule 22.160(a)(7). Rule 22.160 (Market Opening Procedures) was recently modified to replace IEX's price discovery auction opening process for option series with a simpler deterministic midpoint crossing process opening process.^[8] The Opening Process Filing made several changes to Rule 22.160, including changes to the definitions set forth in Rule 22.160(a).^[9] Among those changes was a renumbering of the definition of “Away Market” from Rule 22.160(a)(8) to 22.160(a)(7). IEX therefore proposes to amend Rule 23.150(h)(1) to cross-reference Rule 22.160(a)(7) instead of Rule 22.160(a)(8).

IEX notes that the proposed change to this internal cross-reference does not substantively modify system functionality or processes on the Exchange, but solely corrects an incorrect internal cross-reference.

2. Statutory Basis

IEX believes that the proposed rule change is consistent with the provisions of Section 6(b) ^[10] of the Act in general, and furthers the objectives of Section 6(b)(5) of the Act ^[11] in particular, in that it is designed to prevent fraudulent and manipulative acts and practices, 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, IEX believes that the proposed rule change is consistent with Section 6(b)(5) of the Act ^[12] because by correcting an inadvertent typographical error introduced by the Opening Process Filing, it will eliminate any confusion regarding the definition of “Away Markets” as that term is used in Rule 23.150(h), without substantively changing any of IEX's rules.

The Exchange also believes that the proposed rule change is consistent with the public interest and the protection of investors because it will provide increased clarity in the Exchange's rules.

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

IEX does not believe that the proposed rule change will result in any burden on competition that is not necessary or appropriate in furtherance of the purposes of the Act. As described in the Purpose and Statutory Basis sections, this rule filing merely proposes to correct one internal cross-reference error introduced by a recent rule filing. The proposed rule change is not intended to address competitive issues but rather would modify Exchange rules to update an internal cross-reference. Since the proposal does not substantively modify system functionality or processes on the Exchange, the proposed changes will not impose any burden on competition.

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 designated this rule filing as non-controversial under Section 19(b)(3)(A) ^[13] of the Act and Rule 19b-4(f)(6) ^[14] thereunder. Because the proposed rule change does not: (i) significantly affect the protection of investors or the public interest; (ii) impose any significant burden on competition; and (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 and Rule 19b-4(f)(6) ^[15] thereunder.

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 shall institute proceedings under Section 19(b)(2)(B) ^[16] of the Act 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 (www.sec.gov/​rules/​sro.shtml); or
• Send an email torule-comments@sec.gov. Please include file number SR-IEX-2026-28 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-2026-28. 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 ( 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-2026-28 and should be submitted on or before September 14, 2026.