Pursuant to the provisions of Section 19(b)(1) under the Securities Exchange Act of 1934 (“Act”) ^[1] and Rule 19b-4 thereunder,^[2] notice is hereby given that on May 26, 2026, Green Impact Exchange, LLC (“GIX” or “Exchange”) filed with the Securities and Exchange Commission (the “Commission”) the proposed rule change 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

The Exchange is filing with the Commission a proposed rule change to amend Exchange Rules 11.180 and 14.003 to conform with an amendment to the definition of a Round Lot under Rule 600 of Regulation NMS approved by the Commission.^[3]

The text of the proposed rule change is available at the Exchange's website at https://tradegix.com/​ and at the principal office of the Exchange.

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

In its filing with the Commission, the Exchange 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. ( printed page 33255)

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

1. Purpose

The Exchange proposes to amend Exchange Rules 11.180 and 14.003 to conform with an amendment to the definition of a Round Lot under Rule 600 of Regulation NMS approved by the Commission.^[4] The Exchange also proposes to make a conforming and non-substantive change to Exchange Rule 11.151(a)(1) (Two-Sided Quote Obligation) and correct a minor typographical error in the introductory paragraph of Rule 14.003.

In 2020, the Commission adopted amendments to Regulation NMS to modernize the NMS information provided within the national market system for the benefit of market participants and to better achieve the goals of Section 11A of the Act of assuring “the availability to brokers, dealers, and investors of information with respect to quotations for and transactions in securities that is prompt, accurate, reliable, and fair” (“MDI Rules”).^[5] These changes included an amendment to Rule 600 of Regulation NMS to include a definition of “round lot” that assigns each NMS stock to a round lot size based on the stock's average closing price. Prior to this change, a “round lot” was not defined in the Act or Regulation NMS. The definition of a “round lot” was included in the rules of each exchange, including Exchange Rules 11.180 and 14.002, which typically defined a “Round Lot” as 100 shares, but also allowed the exchange, or the primary listing exchange for the stock, discretion to define it otherwise.

In light of delays in the implementation of the MDI Rules, including the definition of round lot, on September 18, 2024, the Commission, among other things, accelerated the implementation of the round lot definition. The Commission also revised the round lot definition as set forth below.^[6] Rule 600(b)(93) of Regulation NMS, as adopted by the MDI Rules and as amended in 2024,^[7] defines a round lot for NMS stocks ^[8] that have an average closing price on the primary listing exchange during the prior Evaluation Period ^[9] of: (1) $250.00 or less per share as 100 shares; (2) $250.01 to $1,000.00 per share as 40 shares; (3) $1,000.01 to $10,000.00 per share as 10 shares; and (4) $10,000.01 or more per share as 1 share. For any security that becomes an NMS Stock during an operative period, as described in Rule 600(b)(93)(iv),^[10] a round lot is 100 shares. Adjustments to the round lot size for a security will occur on a semiannual basis and the calculation of the average closing price on the primary listing exchange will be based on a one month “Evaluation Period.” The revised definition or a Round Lot was implemented on November 3, 2025, the first business day of November 2025.^[11]

The Exchange now proposes to amend Exchange Rules 11.180 and 14.003 to conform with the definition of Round Lot under Rule 600 of the Regulation NMS. Exchange Rule 11.180(q)(1) provides that “[o]ne hundred (100) shares or any multiple thereof shall constitute a Round Lot, unless an alternative number of shares is established as a Round Lot by the listing exchange for the security.” The Exchange proposes to replace this definition with a sentence that explicitly refers to the definition of round lots under Rule 600 of Regulation NMS. As a result, the above sentence will be deleted and replaced with the following: “For any NMS stock, the “Round Lot” shall be the size assigned by the primary listing market pursuant to Rule 600 of Regulation NMS under the Exchange Act.”

Similarly, Exchange Rule 14.003(a)(30) provides that the term “Round Lot” or “Normal Unit of Trading” means 100 shares of a security[,]” and provides that the Exchange may determine when a “Round Lot” would not mean 100 shares. The Exchange now proposes to also amend Exchange Rule 14.003(a)(30) to explicitly refer to the definition of a round lot under Rule 600 of Regulation NMS. Again, the Exchange proposes these changes solely to conform the Exchange's definition of Round Lot under Exchange Rule 11.180(q)(1) and Exchange Rule 14.003(a)(30) to the new definition of Round Lot under Rule 600 of Regulation NMS.

The Exchange also proposes to make a conforming non-substantive change to Exchange Rule 11.151(a)(1), Two-Sided Quote Obligation. Exchange Rule 11.151(a)(1) currently provides that “[u]nless otherwise designated, a `normal unit of trading' shall be 100 shares.” The Exchange proposes to replace the aforementioned sentence with a sentence that conforms to the newly adopted definition of Round Lot in the Exchange's rules. As a result, the above sentence will be removed and replaced with the following: “Unless otherwise designated, a `normal unit of trading' shall be a Round Lot as defined in Exchange Rule 11.180.”

Finally, the Exchange proposes to make a ministerial change to Rule 14.003(a) where the word “Rules” is incorrectly stated in the plural; the correct word “Rule” will be substituted in the text.

2. Statutory Basis

The Exchange believes that the proposed rule change is consistent with the provisions of Section 6 of the Act,^[12] in general, and furthers the objectives of Section 6(b)(1) ^[13] in particular, in that it enables the Exchange to be so organized as to have the capacity to be able to carry out the purposes of the Act and to comply, and to enforce compliance by its exchange members and persons associated with its exchange members, with the provisions of the Act, the rules and regulations thereunder, and the rules of the Exchange. The Exchange also believes that the proposed rule change is consistent with Section (b)(5) of the Act ^[14] in that it is designed to promote just and equitable principles of trade, to foster cooperation and coordination with persons engaged in facilitating transactions in securities, 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.

The Exchange proposes to amend Exchange Rules 11.180 and 14.003 to conform with the definition of Round Lot under Rule 600 of the Regulation NMS. These changes are being proposed solely to conform the Exchange's ( printed page 33256) definition of “Round Lot” under Exchange Rules 11.180 and 14.002 to the new definition of Round Lot under Rule 600 of Regulation NMS. The Exchange also proposes to make conforming non-substantive changes to Rules 11.151(a)(1), Two-Sided Quote Obligation. These proposed changes are intended to conform the rule text with the changes to Exchange Rules 11.180 and 14.003.

The proposed rule changes would reduce potential investor and market participant confusion and therefore remove impediments to and perfect the mechanism of a free and open market and a national market system by ensuring that the Exchange's rules properly reflect the requirements of Rule 600 of Regulation NMS. The Exchange also believes that the proposed rule changes would remove impediments to and perfects the mechanism of a free and open market by ensuring that persons subject to the Exchange's jurisdiction, regulators, and the investing public can more easily navigate and understand the Exchange's rules. The proposed rule changes would not be inconsistent with the public interest and the protection of investors because investors will not be harmed and in fact would benefit from the increased transparency and clarity, thereby reducing potential confusion.

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

The Exchange does not believe that the proposed rule change will impose any burden on competition that is not necessary or appropriate in furtherance of the purposes of the Act. The Exchange believes the proposed rule change does not impose any burden on intra-market or intermarket competition that is not necessary or appropriate in furtherance of the purposes of the Act. The proposed rule changes to amend the definition of Round Lot are not intended to address competitive issues but rather are concerned solely with amending the Exchange's Rules to conform with the amended definition of Round Lot under Rule 600 of the Regulation NMS.

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

The Exchange neither solicited nor received comments on the proposed rule change.

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 ^[15] and Rule 19b-4(f)(6) ^[16] 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 ^[17] and Rule 19b-4(f)(6) ^[18] thereunder.

A proposed rule change filed under Rule 19b-4(f)(6) ^[19] normally does not become operative prior to 30 days after the date of the filing. However, pursuant to Rule 19b-4(f)(6)(iii),^[20] 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. The Commission believes that waiving the 30-day operative delay is consistent with the protection of investors and the public interest because the proposed rule change simply amends Exchange Rules 11.180 and 14.003 to conform with an amendment to the definition of a Round Lot under Rule 600 of Regulation NMS and to make the Exchange's rulebook clear and transparent for market participants. As a result, the proposal does not introduce any novel regulatory issues. Accordingly, the Commission designates the proposed rule change to be operative upon filing.^[21]

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-GIX-2026-01 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-GIX-2026-01. 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 also 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-GIX-2026-01 and should be submitted on or before June 24, 2026.