Comments on CHX Rulemaking

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

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Date Received
Date Letter Type Commenter Name
Public Comment James Ongena, Executive Vice President and General Counsel, Chicago Stock Exchange, Inc.
Public Comment John A. McCarthy, General Counsel, KCG Holdings, Inc.
Public Comment Adam C. Cooper, Senior Managing Director and Chief Legal Officer, Citadel Securities
Public Comment Joanna Mallers, Secretary, FIA Principal Traders Group
Public Comment John P. Comerford, Managing Director, Instinet
Public Comment Theodore R. Lazo, Managing Director and Associate General Counsel, SIFMA
Public Comment R.T. Leuchtkafer
Public Comment Brian Donnelly, Founder and CEO, Volant Trading, New York, New York
Public Comment Alex Jacobson
Public Comment Boris Ilyevsky, Director, Brokerage, Interactive Brokers LLC
Public Comment Steve Crutchfield, Head of Market Structure, CTC Trading Group, L.L.C., Chicago, Illinois
Public Comment James Ongena, Executive Vice President and General Counsel, Chicago Stock Exchange, Chicago, Illinois
Public Comment Eric J. Pritchett, Chief Executive Officer, Potamus Trading LLC, Boston, Massachusetts
Public Comment Eric Swanson, Esq., EVP, General Counsel and Secretary, Bats Global Markets, Inc., New York, New York
Public Comment James J. Angel, Ph.D., CFA, Associate Professor, McDonough School of Business, Georgetown University
Public Comment Elizabeth K. King, General Counsel and Corporate Secretary, New York Stock Exchange
Public Comment Adam C. Cooper, Senior Managing Director and Chief Legal Officer, Citadel Securities, Chicago, Illinois
Public Comment Eric Budish, Professor of Economics, University of Chicago Booth School of Business, Chicago, Illinois
Public Comment Joanna Mallers, Secretary, FIA Principal Traders Group, Washington, District of Columbia
Public Comment John L. Thornton, Co-Chair, Hal S. Scott, Director, and R. Glenn Hubbard, Co-Chair; Committee on Capital Markets Regulation
Public Comment Tyler Gellasch, Executive Director, Healthy Markets Association
Public Comment Beste Bidd, Trader, New York, New York
Public Comment Adam Nunes, Head of Business Development, Hudson River Trading LLC, New York, New York
Public Comment R.T. Leuchtkafer
Public Comment Douglas A. Cifu, Chief Executive Officer, Virtu Financial

Last Reviewed or Updated: Dec. 18, 2025

File Number
SR-CHX-2016-16
Release Number
34-78860
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