Official Opening Price

Upon completion of the Cboe Opening Auction for Cboe Listed securities, the Cboe Official Opening Price for the security will be disseminated to the consolidated tape along with a bulk execution. The Cboe Official Opening Price will be represented by a sale condition code of O (Market Center Opening Trade) followed by a sale condition code of Q (Market Center Official Open).

If an Opening Auction results in an odd lot execution the Cboe Official Opening Price will be the price of the auction. However, the execution will be represented by a sale condition code of Q (Market Center Official Open).

If an issue does not have an Opening Auction Price (e.g. there is insufficient interest to open the security), the Cboe Official Opening Price will be the price of the Final Last Sale Eligible Trade, which will be the official previous closing price and will be represented by a sale condition code of Q (Market Center Official Open).