Cboe Auction Information

Cboe disseminates Cboe Auction information every five seconds between 8:00 and 9:30 a.m. for the Opening Auction and during a defined Quote-Only period for Halt/IPO/New Issue Auctions. Cboe disseminates Cboe Closing Auction information every 5 seconds between 3:00 and 3:59 p.m. and every 1 second between 3:59 and 4:00 p.m. for the Closing Auction. Cboe Auction data is available to subscribers of Cboe PITCH data feeds and Cboe Auction Feed and is also made available to other market participants by various market data vendors, maximizing transparency for all investors.

Cboe Auction information is also available on the Cboe website.