July 27, 2012 EDGX - Extend the Operation of the Single Stock Circuit Breaker Pilot Program - Effective Immediately (Pre Fed. Reg. version) View release in full here (links externally to SEC website). See also: Exhibit 5 Tags Regulated Activities Trading Sub-Activity Trading Halt Regulated Entities Broker-Dealers Jurisdiction US - Federal
Regulated Activities Trading Sub-Activity Trading Halt Regulated Entities Broker-Dealers Jurisdiction US - Federal