Frequently Requested FOIA Document:
Alternative Trading System ("ATS") List

What You Should Know About the Data File

This report is provided as a PDF file. The report includes the name, the
name(s) under which business is conducted, and location of each current filer of a Form ATS. It is arranged alphabetically by alternative trading system name.

Please note that as of March 13, 2013, the ATS list format has changed.

What You Should Know About the Data

The SEC receives submissions from alternative trading systems on an ongoing basis pursuant to Regulation ATS. We note that the list of alternative trading systems changes over time. Accordingly, Commission staff expect to update the list as circumstances warrant.

For technical questions regarding the Web site, send an e-mail message to webmaster@sec.gov. For additional information about the data, contact the Office of Interpretation and Guidance, Division of Trading and Markets at 202-551-5777 or tradingandmarkets@sec.gov.

Current List

Download the current ATS List now
Report as of: March 1, 2013

Archive Lists

• July 31, 2012
• April 30, 2012
• January 31, 2012
• November 1, 2011
• August 1, 2011
• June 1, 2011
• January 14, 2011
• October 15, 2010
• June 15, 2010
• March 15, 2010
• October 15, 2009
• May 15, 2009
• January 30, 2009

http://www.sec.gov/foia/docs/atslist.htm