[ by Howard Haykin ]

In CBOE's earlier Regulatory Circulars - 12-097, 12-116 - the exchange had announced it no longer would accept All-or-None (AON) orders in any class of options traded on the Exchange (subject to certain limited exceptions).  In Regulatory Circular 12-166, the Exchange confirmed that AON orders are permitted to be received, represented and executed for any class in open outcry and the procedures for entering the open outcry AON order instructions.

CBOE's Business Development Division is updated the information presented in those 3 RegCirc's, with the following announcement:

CBOE plans to reactivate acceptance of simple and complex DAY and GTC orders with the AON contingency for electronic trading in early February 2013. The Exchange is issuing this circular in advance of the reactivation to provide Trading Permit Holders (TPHs) an opportunity to prepare for this change. The Exchange will issue a circular announcing the specific rollout schedule in advance
of the reactivation.
 

For further information, go to:   [CBOE RegCirc 12-171, 12/7/12] or contact the API Group at 312-786-7300 or api@cboe.com.