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Position Limit Circulars

Option Position Limits

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DateTitle
07/29/2008 PL08-31 XM Satellite Radio Holdings Inc. Class A ("XMSR/QSY/YLX") Merger Completed with Sirius Satellite Radio Inc. ("SIRI/QXO/YFW") Effective Date July 29, 2008.
07/15/2008 PL08-30 Aquila Inc ("ILA/ZDO/WVN") Merger Completed with Great Plains Energy Incorporated ("GXP") Effective Date July 14, 2008
07/11/2008 PL08-29 CSK Auto Corporation ("CAO") Merger Completed with OC Acquisition Company, an indirect wholly-owned sibsidiary of O'Reily Automotive Inc. ("ORLY/OQR") Effectvie Date July 11, 2008.
07/02/2008 PL08-28 Adjusted Position and Exercise Limit for certain Equity Option Class will revert to its Applicable Standard Position and Exercise Limit effective July 21, 2008
07/02/2008 PL08-27 Exchange Traded Funds and Equity Position and Exercise Limits will be decreased to a Lower Tier Limit Effective July 21, 2008
07/01/2008 PL08-26 Countrywide Financial Corporation ("CFC/YJD") Merger Completed with Bank of America Corporation ("BAC/WBA") Effective Date July 1, 2008
06/06/2008 PL08-23 Exchange Traded Funds and Equity Position and Exercise Limits will be decreased to a Lower Tier Limit Effective June 23, 2008
06/06/2008 PL08-22 Adjusted Position and Exercise Limits for certain Equity Option Classes will revert to their Applicable Standard Position and Exercise Limits effective June 23, 2008
06/06/2008 PL08-25 Trane Inc. ("TT/YBJ") Merger Completed with Ingersoll-Rand ("IR") Effective Date June 5, 2008
06/02/2008 PL08-24 The Bear Stearns Companies Inc ("BSC") Merger Completed with JP Morgan & Co. ("JPM") Effective Date May 30, 2008

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