If there are any short positions at this time, the clearing house for that “short” brokerage will issue a “buy-in” notice to that brokerage instructing them to cover all short positions. I cannot be exact as to the timing of this as each clearing house operates independently, but at some point between September 29th ,2010 and October 14th, 2010, any short position held by a brokerage will receive the instruction to cover through the “buy-in” notice from their clearing house."