Starting on Sunday, December 6, 2026, at 9pm ET, Nasdaq will develop buying and selling of U.S. equities to 23 hours a day, 5 days every week.
What the business is looking “23/5 buying and selling” displays a broader shift in how capital strikes all over the world. As investing turns into more and more international, market infrastructure is evolving to offer higher entry whereas sustaining the protections and transparency of a registered nationwide securities trade.
“23/5 buying and selling displays a easy actuality: international investor conduct is altering, and traders more and more anticipate entry to U.S. markets that aligns with their very own time zones and data cycles,” mentioned Nasdaq’s Chuck Mack, Senior Vice President of North American Markets.
Turning that imaginative and prescient into actuality requires greater than prolonged buying and selling hours. It requires coordinated updates throughout the market ecosystem to make sure traders can entry U.S. markets with the identical transparency and resiliency they anticipate right now.
Right here’s what to know.
What are the present (pre-December 6) buying and selling hours?
The U.S. buying and selling hours at the moment run from 9:30 a.m. to 4 p.m. ET, with prolonged buying and selling hours from 4:00 a.m. to 9:30 a.m. ET and 4:00 p.m. to eight:00 p.m. ET.
What would be the (December 6 and onward) 23/5 buying and selling hours?
Starting December 6, the Nasdaq Inventory Market will function 23 hours a day, 5 days every week, from Sunday night, 9:00 p.m. ET, by means of Friday night, 8:00 p.m. ET, with a 1-hour upkeep pause from 8:00 p.m. to 9:00 p.m. ET.
What’s the one-hour pause?
Between 8:00 p.m. and 9:00 p.m. ET every weekday, buying and selling will pause to assist upkeep actions and sure company motion processing. The pause helps operational resilience and important clearing, settlement, and reference knowledge processes.
What’s going to stay the identical?
Nasdaq’s method to 23/5 buying and selling prioritizes resilience, transparency, regulatory alignment, and investor safety.
The mannequin preserves the core U.S. buying and selling session, together with the Opening and Closing Crosses, that assist environment friendly worth discovery and benchmark pricing for traders.
Supported by institutional-grade expertise, ongoing shopper communication, and clear operational processes, the framework is designed to develop entry to U.S. markets whereas preserving the integrity, reliability, and investor protections that underpin investor confidence.
What are the Opening and Closing Crosses?
The framework preserves the Opening and Closing Crosses, two of the market’s most vital liquidity and price-discovery occasions that happen initially and finish of U.S. buying and selling hours.
The Crosses allow market contributors to execute on-open and on-close curiosity and supply unparalleled transparency into the market open and market shut. The Closing Cross additionally establishes the official closing worth for all Nasdaq-listed securities, a benchmark extensively utilized by traders, index suppliers, and asset managers.
How will this have an effect on U.S. Market Holidays?
23/5 buying and selling will proceed to watch U.S. market holidays.
What does 23/5 buying and selling imply for you?
Buyers:
- 23/5 buying and selling expands entry to U.S. equities throughout time zones, providing traders U.S. in a single day buying and selling on a registered nationwide securities trade.
- Most liquidity remains to be anticipated to stay concentrated throughout conventional U.S. buying and selling hours. Nonetheless, new hours present traders with a clear and controlled venue to reply to market developments, financial information, earnings bulletins, and international occasions as they happen relatively than ready for the subsequent buying and selling day.
- For broker-dealers and monetary intermediaries, the expanded schedule will create alternatives to raised serve purchasers throughout their native enterprise hours.
Nasdaq Issuers:
- For Nasdaq-listed firms, issuers’ disclosure obligations, investor relations practices, and reporting necessities stay unchanged. Company actions and materials information bulletins will proceed to be ruled by means of established regulatory processes, and in a single day buying and selling will happen throughout the oversight of a nationwide securities trade.
Nasdaq Market Knowledge Customers:
- As markets transfer towards 23/5 buying and selling, market contributors would require entry to knowledge designed for a considerably longer buying and selling day.
- Nasdaq is introducing enhanced Nasdaq Plus market knowledge merchandise that consolidate data from Nasdaq’s U.S. fairness exchanges and assist the operational necessities of prolonged buying and selling classes.
- Nasdaq Plus supplies the inspiration clients must entry, combine, and operationalize expanded-hours market knowledge earlier than the December market enlargement.
Nasdaq’s Monetary Expertise Shoppers:
- Nasdaq’s Monetary Expertise equips market contributors to navigate evolving market construction, offering the platforms, infrastructure and capabilities wanted to adapt to expanded buying and selling hours and construct for more and more related, always-on markets.
- For banks, brokers, market operators and different monetary establishments, the transfer to 23/5 extends the calls for positioned on expertise and operations throughout the market lifecycle. Nasdaq’s Monetary Expertise platforms, together with Calypso, Nasdaq Eqlipse, Nasdaq Surveillance and AxiomSL, assist establishments throughout market infrastructure, danger administration, market integrity and regulatory reporting, serving to them adapt as markets function for longer and turn into more and more steady.
Why is Nasdaq centered on a resilient 23/5 market?
Buying and selling hours should be as truthful and orderly at 2:00 a.m. as they’re at 2:00 p.m. That precept underpins Nasdaq’s method to 23/5 buying and selling.
Traditionally, U.S. market infrastructure has relied on in a single day processing home windows for commerce reconciliation, clearing, settlement, and reference knowledge updates.
Beneath 23/5, that window shrinks to 1 hour, growing reliance on automation, real-time processing, steady danger monitoring, and around-the-clock operational assist.
Nasdaq’s mannequin integrates key protections by means of:
- The every day upkeep pause
- Company action-related regulatory halts
- In a single day price-band protections
- Enhanced buyer disclosures
- Regulatory oversight and transparency necessities
“As we method December 6, Nasdaq’s guiding ideas are centered on clear communication, business cohesion, and shopper wants. That is what is going to make this launch a hit,” mentioned Mack.
Nasdaq has labored intently with business contributors to assist the event, testing, and preparation essential for prolonged buying and selling hours, whereas the relevant regulatory proposals proceed by means of the approval course of.
“You do not design programs with out fascinated with interdependencies, the way you preserve the system, do failover, do software program updates, and add new merchandise and options,” Mack mentioned. “23/5 buying and selling is simply one other factor that you just’re pulling into that complicated however well-designed system throughout the whole business.”
Nasdaq’s programs have been stress-tested beneath excessive circumstances, together with document message visitors and unprecedented volatility, supporting confidence in 23/5 buying and selling hours.
That very same give attention to resilience extends to cybersecurity. Requested whether or not AI-driven cyber threats change the danger profile of an in a single day buying and selling session, Mack famous that Nasdaq already operates a wide selection of programs across the clock.
“The truth that we’ll have a pair extra programs operating eight hours longer would not considerably change the cyber insurance policies and requirements we set,” he mentioned. “Now we have a really sturdy program that consistently evolves as new expertise emerges, and we account for that.”
Trying forward
23/5 displays the continued globalization of investing and the expectation that market entry ought to align with how capital strikes right now.
By increasing entry by means of a regulated trade, Nasdaq goals to increase participation whereas sustaining the transparency and resiliency that underpin U.S. markets.
Study extra on Nasdaq’s 23/5 buying and selling hub.
