Nasdaq Plans to Launch 23-Hour Trading on December 6, 2026
Nashnova编辑部
Nasdaq plans to extend trading to nearly 23 hours per day starting December 6, 2026, which means U.S. equities would for the first time cover Asian and European business hours — letting global investors trade American stocks during their own daytime.
How will trading hours change?
A new overnight session runs from 9 p.m. to 4 a.m. ET, linking up with the existing 4 a.m.–8 p.m. window.
A one-hour pause from 8 p.m. to 9 p.m. each day handles data processing and the trading-day rollover.
In plain terms = out of 24 hours, only one is dark — from Sunday evening through Friday evening, the market is almost always open.
Why is Nasdaq doing this?
The exchange stated explicitly: "To meet growing global demand for U.S. equities."
This means → Nasdaq sees real buy-and-sell demand from Asian and European investors outside U.S. hours and wants to capture that flow directly.
This reflects a broader shift: U.S. stocks are moving from a "U.S.-hours asset" toward a round-the-clock global asset.
What still needs to happen?
The plan requires SEC approval; Nasdaq says it is still in discussions with regulators.
It also depends on the readiness of the Securities Information Processor (SIP) — the infrastructure that consolidates quotes from all exchanges into a single data feed.
This means → two gatekeepers — SEC rule sign-off and SIP infrastructure upgrades — and a delay in either one could push back the timeline.
What does this mean for ordinary investors?
If the plan goes live, Asian investors could trade U.S. stocks during their own business hours instead of staying up through the night.
But 23-hour trading also spreads liquidity across a longer window, so bid-ask spreads during overnight hours may be wider.
In plain terms = more trading time is a net positive, but not every hour will offer the same execution quality — late-night orders may cost a bit more.
Content is for reference only, not financial advice.