Securities Eligible

Only Cboe Listed securities are eligible for Auctions. Cboe Listed securities will be added to the Opening and Closing Auctions either after the IPO/New Issue Auction or after the listing has transferred to BZX from another listing exchange. On-Open and On-Close orders submitted for non-Cboe Listed securities will be rejected.

Cboe Titanium U.S. Equities Auction Process - Securities Eligible | Cboe