Regulatory Circulars

May 15, 2013:   RG13-075 AIM Auto-Match with a Limit 
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May 08, 2013:   RG13-074 CBOE and ISG Extend Effective Date for Certain Electronic Blue Sheet Data Elements 
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May 06, 2013:   RG13-073 Requirement to Provide Notification to the Exchange of Disciplinary Action 
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May 06, 2013:   RG13-072 Restrictions on Transactions in New Energy Systems Group (NEWN) 
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May 01, 2013:   RG13-071 Relocation of Option Classes from Post 5, Station 9 
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April 30, 2013:   RG13-070 Relocation of IWM, IWO and IWN from Post 4, Station 5 to Post 4, Station 10 
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April 29, 2013:   RG13-069 May 2013 Fee Changes 
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April 25, 2013:   RG13-068 Availability of Auctions on CBOE Market 
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April 23, 2013:   RG13-067 USANA Health Sciences, Inc. (Ticker USNA) 
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