International | 24X Equities

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Subject to SEC approval 24X National Exchange (“24X”) plans to move the Premarket opening time from 4:00 a.m. to 9:00 p.m. on the prior evening all times referenced in this FAQ are Eastern Time. This session will be renamed the Extended Pre Market.

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Subject to SEC approval 24X will operate nearly around the clock offering trading 23 hours per day five days a week. The one-hour break is intended to ensure proper trade clearing system maintenance, operational processing and transition to the next trading day.

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Implementation depends on coordination of several key factors including SIP availability DTCC modernization efforts and SEC regulatory approval. The target implementation date is late 2026. Additional details will be shared via Information Circulars in the coming months.

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Only US broker dealers that are 24X members will be able to trade during the Extended Pre Market session. All other firms must establish a relationship with a 24X member to participate.

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Testing details will be announced via Trader Updates closer to the implementation date.

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• Trades executed between 9:00 p.m. and 11:59 p.m. will be assigned the next trade date
• Trades executed between 12:00 a.m. and 9:30 a.m. will be assigned the same trade date

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Yes. When a US market holiday falls on a weekday, 24X will close the After Market session which may be shortened on the prior evening and the next Extended Pre Market session will begin at 9:00 p.m. on the holiday.

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No. Firms will continue to access 24X via the existing connectivity only the available trading hours will change.

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24X Market Operations real-time hotline and email support will be available from Sunday 9:00 p.m. through Friday 8:00 p.m. Existing contact details remain unchanged.

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Yes. 24X will continue routing to other markets that are operating during the Extended Pre Market.

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The 24X order entry facilities contain an integrated pre trade risk management service that processes all incoming order information against a mandatory set of risk controls designed to help prevent erroneous orders from passing through to the matching engine for execution. These controls are dynamically configurable by Clearing Firms and other Members, Sponsored Participants and Service Bureaus and can be assigned to an individual session.

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Absent further changes the current CEE rules applicable to off-hours trading will also apply to the Extended Pre Market. Discussions are ongoing between market participants and exchanges regarding potential investor protection enhancements and related rule modifications.

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An order with this TIF instruction is eligible for execution during the Pre-Market Session and the Core Market Session. Day orders remaining on the 24X Book at the end of the Core Market Session will be cancelled.

Good 'til Time GTT An instruction the User may attach to an order specifying the time of day at which the order expires. Any unexecuted portion of an order with a TIF instruction of GTT will be cancelled at the expiration of the Users specified time which can be no later than the close of the Post Market Session. If no time is specified the order expires at 8:00 p.m. ET.

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No. Risk controls will be applied consistently across trading sessions. Firms will not configure separate risk settings specifically for the Extended Pre Market. Any future enhancements or changes to risk configuration will be communicated by 24X in advance.

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Risk breaches are handled in real time consistent with current procedures. Market Operations coverage will be available throughout the Extended Pre Market to monitor activity and coordinate responses as needed.

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Yes. Market surveillance and monitoring will operate continuously during all trading sessions including the Extended Pre Market.

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Yes. Executions will be clearly identified by session and trade date using existing fields and indicators in trade confirmations and drop copy feeds.

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Pre Market Session. Unless otherwise specified all orders and modifiers that are designated for the Pre Market Session except for market orders are eligible to participate in the Pre Market Session.

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Currently LULD applies only during the Core Session. However, market participants and exchanges are discussing the potential expansion of LULD like volatility controls to additional trading sessions including the Extended Pre Market.

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Trades executed during the Extended Pre Market and After Market sessions will carry the T trade condition and will not be eligible as Last Sale.

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Corporate actions and adjusted closing prices are disseminated via the SIPs through symbol reference data messages CQS, CTS, UTP, outputs and the CTA, UTP symbol file at the start of the trading day.

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Market participants may sign up to receive Trader Updates by submitting a request through the 24X website. Once registered, subscribers will receive Trader Updates via electronic distribution. https://equities.24exchange.com/contact

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No Member may accept an order from a customer for execution during Extended Hours Trading without disclosing to such customer that Extended Hours Trading involves material trading risks, including the possibility of lower liquidity, high volatility, changing prices, unlinked markets, an exaggerated effect from news announcements, wider spreads and any other relevant risk, including additional risks related to the 24X Market Session.
Rule 3.21(i) in our rulebook.
https://equities.24exchange.com/api/media/file/24X%20Rulebook%2012.10.2025.pdf

Extended Hours Trading