Comments on NASDAQ Rulemaking

Order Instituting Proceedings to Determine Whether to Disapprove Proposed Rule Changes Relating to Trading Halts Due to Extraordinary Market Volatility
Notice of Filing of Proposed Rule Change to Revise the Methodology for Determining When to Halt Trading Due to Extraordinary Market Volatility

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Date Received
Date Letter Type Release Number Commenter Name
Meeting with SEC Officials 34-66065 Memorandum from the Office of the Chairman regarding a March 21, 2012, meeting with representatives of Nasdaq OMX
Public Comment 34-66065 Ann L. Vlcek, Managing Director and Associate General Counsel, Securities Industry and Financial Markets Association
Public Comment 34-66065 Craig S. Donohue, Chief Executive Officer, CME Group Inc.
Public Comment 34-66065 Timothy Quast, Managing Director, ModernIR
Public Comment 34-65437, 34-65428, 34-65429, 34-65433, 34-65438, 34-65426, 34-65431, 34-65440, 34-65430, 34-65425, 34-65435, 34-65436, 34-65427, 34-65436, 34-65439, 34-65434 Ann L. Vlcek, Managing Director and Associate General Counsel, Securities Industry and Financial Markets Association
Public Comment 34-65437, 34-65428, 34-65429, 34-65433, 34-65438, 34-65426, 34-65431, 34-65440, 34-65430, 34-65425, 34-65435, 34-65436, 34-65427, 34-65436, 34-65439, 34-65434 Craig S. Donohue, Chief Executive Officer, CME Group Inc.
Public Comment 34-65437, 34-65428, 34-65429, 34-65433, 34-65438, 34-65426, 34-65431, 34-65440, 34-65430, 34-65425, 34-65435, 34-65436, 34-65427, 34-65436, 34-65439, 34-65434 James J. Angel, Ph.D., CFA, Associate Professor of Finance, Georgetown University, Washington, D.C.
Public Comment 34-65437, 34-65428, 34-65429, 34-65433, 34-65438, 34-65426, 34-65431, 34-65440, 34-65430, 34-65425, 34-65435, 34-65436, 34-65427, 34-65436, 34-65439, 34-65434 Richard H. Baker, President and CEO, Managed Funds Association
Public Comment 34-65435 Mark Roszak, Chicago, Illinois

Last Reviewed or Updated: Dec. 18, 2025

File Number
SR-NASDAQ-2011-131
Release Number
34-66065
34-65435
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