Change to the Operating Rules: Procedures
10 April 2025 – The Cboe market has published a change adjusting the timings of its auction phases. The Opening Auction trading phase is now scheduled for 9:59:45 to 10:00:00, and the Closing Auction trading phase will be held from 16:12:45 to 16:13:00. Read more here.
Policies affected: Trading Policies quoting trading phases
Organisations affected: Cboe Trading Participants
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