Joint Request for Comment on Further Implementation of Portfolio Margining and Cross-Margining of Securities and Derivatives

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Date Received
Date Letter Type Commenter Name
Public Comment Benjamin L. Schiffrin, Director of Securities Policy, Better Markets, Inc.
Public Comment Dr. O . N . Ravi, Corporate Lawyer, Mumbai
Public Comment James M. Tabacchi, Chair, Independent Dealer and Trader Association
Public Comment Jeffrey Starr, Managing Director, Head of Operations, Charles Schwab & Co., Inc.
Public Comment Jennifer W. Han, Chief Legal Officer & Head of Global Regulatory Affairs, Managed Funds Association
Public Comment Joanna Mallers, Secretary, PTG
Public Comment Jonathan Jachym, Global Head of Policy and Market Structure, Payward, Inc.
Public Comment Jonathan Marcus, Senior Managing Director and General Counsel, CME Group, Inc.
Public Comment Joseph P. Kamnik, SVP, Senior Counsel, Miami International Holdings, Inc. and SVP, Chief Compliance Officer, MIAX Futures Exchange LLC
Public Comment Justom Davda, Head of Capital Markets, Products & Risk, Coinbase, Inc.; Julia Hueckel, Director, Regulatory Policy, Coinbase, Inc.
Public Comment Kara Dutta, VP, Head of Legal, US Futures Exchange and Clearing, Intercontinental Exchange, Inc.
Public Comment Kelvin To, Founder, President, Data Boiler Technologies, LLC
Public Comment Matt Billings, President, Robinhood Financial LLC and Robinhood Securities, LLC
Public Comment Megan Malone Cohen, General Counsel, Options Clearing Corporation
Public Comment Patrick Sexton, EVP, General Counsel, and Corporate Secretary, Cboe Global Markets, Inc.
Public Comment Randi Abernethy, Head of Group Clearing and Group Risk, Bullish
Public Comment The Global Association of Central Counterparties, Risk Policy Advisor, The Global Association of Central Counterparties (CCP Global)
Public Comment Kyle L Brandon, Managing Director, Head of Derivatives Policy, SIFMA; and William C. Thum, Managing Director and Associate General Counsel, SIFMA AMG
Public Comment Isao Hasegawa, President & CEO, Japan Securities Clearing Corporation
Public Comment Mark Janoff, General Counsel, Ondo Finance, Inc.
Public Comment Eyad G. Haddadin, Managing Member, VeloxVFX LLC
Public Comment Hans R. Dutt, Economic Consultant
Public Comment Michael Ravnitzky
Public Comment Jeremy Wilson, Credit Analyst, Macon Bank and Trust
File Number
S7-2026-23
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