Trading Session Selection for Options
When trading index options, you can select which session your orders execute within: Global Trading Hours (GTH), or Regular Trading Hours (RTH) plus the Curb Session. Orders will execute only within their designated session.
1. Trading Session Arrangements
- Standard Trading Hours
Time Zone | Global Trading Hours | Regular Trading Hours | Curb Session |
Eastern Time | 8:15 PM - 9:25 AM | 9:30 AM - 4:15 PM | 4:15 PM - 5:00 PM |
Arabia Standard Time | 3:15 AM - 4: 25 PM | 4:30 PM - 11:15 PM | 11:15 PM - 12: 00 AM |
- US Holiday Trading Hours
Note：
- Orders set for a specific session will expire if not executed by the end of that session. (Example: A GTH order expires at the end of GTH if unfilled.)
- The trading hours selection feature is only available for certain index option contracts.
- Special arrangements, such as US Holiday Trading Hours and Early Close Hours, occur according to the CBOE holiday schedule.
- Market orders are only allowed during RTH.
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