Short Sale Order Handling

Opening Auction: Short sale orders for covered securities subject to Rule 201 of Regulation SHO that are in an active short sale circuit breaker will only be eligible for execution at a price above the National Best Bid (NBB) at the time of the auction match.

Halt Auction: Short sale orders for covered securities subject to Rule 201 of Regulation SHO that are in an active short sale circuit breaker will only be eligible for execution at a price above the last National Best Bid (NBB) prior to the halt.

Closing Auction: Short sale orders for covered securities subject to Rule 201 of Regulation SHO that are in an active short sale circuit breaker will only be eligible for execution at a price above the last National Best Bid (NBB) at the time of the auction match.

Cboe Titanium U.S. Equities Auction Process - Short Sale Order Handling | Cboe