Hours of Operation

All times noted are Eastern Time (ET).

See the respective exchange websites for holiday schedules.

Cboe Options Exchanges support a Pre-Market Queuing Session that allows orders to be entered and queued prior to the start of the Global Trading Hours (GTH) session and the Regular Trading Hours (RTH) session. The GTH Queuing session allows GTH-eligible Product orders marked as both GTH and RTH only order to be entered and queued. C1 also supports a Curb session in addition to GTH and RTH sessions.

For information on the Cboe Opening Process, please refer to the Cboe Titanium U.S. Options Opening Process specification.

Cboe Options Exchanges do not support a closing auction, but do support extended trading for options on select ETF and index products. All orders remaining after the Regular Trading Session that are not eligible for Extended Trading will be cancelled automatically. All orders remaining after the Extended session will be cancelled automatically. Members will receive Order Cancelled messages for all automatically cancelled orders.

Product and session trading hours can be found on the Cboe website.