The Securities Industry Automation Corporation has modified the record layout of the Electronic Blue Sheet (EBS) automated trading data submissions pursuant to the implementation of the Option Symbology Initiative by The Options Clearing Corporation and its participant exchanges. Under the Option Symbology Initiative, all exchange-traded options are expected to be described using explicit data elements by February 12, 2010. The modified EBS record layout is set forth in Attachment A to the July 17 Chicago Board Options Exchange (CBOE) Regulatory Circular describing the EBS record layout changes. CBOE currently accepts EBS submissions using the modified record layout, which may be used on a voluntary basis until the February 12, 2010, mandatory implementation date.  

Click here to read the CBOE Regulatory Circular.