Comments on CHX Rulemaking

Notice of Filing of Proposed Rule Change to Adopt the CHX Liquidity Enhancing Access Delay

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Date Received
Date Letter Type Commenter Name
Public Comment Albert Kim, VP and Associate General Counsel, Chicago Stock Exchange, Inc.
Public Comment James G. Ongena, Executive Vice President and General Counsel, Chicago Stock Exchange, Inc.
Public Comment Recommendation of the Investor Advocate, U.S. Securities and Exchange Commission
Public Comment James G. Ongena, Executive Vice President and General Counsel, Chicago Stock Exchange, Inc.
Public Comment James G. Ongena, Executive Vice President and General Counsel, Chicago Stock Exchange, Inc.
Public Comment Public Directors of the Chicago Stock Exchange Inc.
Public Comment Stephen Berger, Managing Director, Government and Regulatory Polic, Citadel Securities
Public Comment Joanna Mallers, FIA Principal Traders Group
Public Comment Albert J. Kim, Vice President and Associate General Counsel, Chicago Stock Exchange, Inc.
Public Comment R.T. Leuchtkafer
Public Comment Albert J. Kim, Vice President and Associate General Counsel, Chicago Stock Exchange, Inc.
Public Comment R.T. Leuchtkafer
Public Comment R.T. Leuchtkafer
Public Comment James G. Ongena, Executive Vice President, General Counsel, Chicago Stock Exchange, Inc.
Public Comment Joanna Mallers, Secretary, FIA Principal Traders Group
Public Comment Stephen Berger, Managing Director, Government and Regulatory Policy, Citadel Securities
Public Comment R. T. Leuchtkafer
Public Comment Theodore R. Lazo, Managing Director and Associate General Counsel, SIFMA
Public Comment Steve Crutchfield, Head of Market Structure, CTC Trading Group, LLC
Public Comment James G. Ongena, Executive Vice President, General Counsel, Chicago Stock Exchange, Inc.
Public Comment Elizabeth K. King, General Counsel and Corporate Secretary, New York Stock Exchange
Public Comment Tyler Gellasch, Executive Director, Healthy Markets Association
Public Comment R. T. Leuchtkafer
Public Comment Stephen John Berger, Managing Director, Government & Regulatory Policy, Citadel Securities
Public Comment Adam Nunes, Head of Business Development, Hudson River Trading LLC
Public Comment Joanna Mallers, Secretary, FIA Principal Traders Group
Public Comment Douglas A. Cifu, Chief Executive Officer, Virtu Financial
Public Comment Ryan Hitch, Head of Equities Trading, XR Securities LLC

Last Reviewed or Updated: Dec. 18, 2025

File Number
SR-CHX-2017-04
Release Number
34-80041
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