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| Apr. 7, 2010 | Edward J. Joyce, President, Chicago Board Options Exchange, Incorporated, Chicago, Illinois |
| Apr. 7, 2010 | Michael J. Simon, Secretary, International Securities Exchange, LLC |
| Apr. 7, 2010 | Pia K. Bennett, Associate Corporate Secretary, NYSE Euronext |
| Mar. 1, 2010 | Memorandum from the Division of Risk, Strategy, and Financial Innovation |
| Mar. 1, 2010 | Michael J. Simon, Secretary, International Securities Exchange, LLC |
| Jan. 29, 2010 | Memorandum from the Office of Commissioner Aguilar concerning an January 28, 2010, meeting with representatives of the International Securities Exchange |
| Jan. 20, 2010 | Angelo Evangelou, Assistant General Counsel, Chicago Board Options Exchange |
| Dec. 16, 2009 | Michael J. Simon, Secretary, International Securities Exchange, LLC |
| Dec. 3, 2009 | Joanne Moffic-Si1ver, Executive Vice President, General Counsel & Corporate Secretary, Chicago Board Options Exchange |
| Dec. 3, 2009 | Janet M. Kissane, Senior Vice President, Legal & Corporate Secretary, Office of the General Counsel, NYSE Euronext |
| Dec. 3, 2009 | Leonard Ellis, Head of Capital Markets, Capstone Global Markets, LLC |
| Dec. 3, 2009 | Michael J. Simon, Secretary, International Securities Exchange, LLC |
| Dec. 3, 2009 | John C. Nagel, Managing Director and Deputy General Counsel, Citadel |
| Dec. 2, 2009 | Michael Goodwin, Senior Managing Member, Bluefin Trading, LLC |
| Nov. 17, 2009 | Memorandum from the Division of Trading and Markets concerning a November 5, 2009, meeting with representatives of GETCO, LLC |
| Nov. 17, 2009 | Memorandum from the Division of Trading and Markets concerning a November 9, 2009, meeting with representatives of Citigroup Inc. |
| Nov. 17, 2009 | Memorandum from the Division of Trading and Markets concerning a November 10, 2009, meeting with representatives of PEAK6 Investments, L.P. |