Cboe Stock Exchange Proposes Nearly 24-Hour Trading to SEC in December 2026

Global exchange operator Cboe Global Markets has submitted a proposal to the U.S. Securities and Exchange Commission to introduce nearly 24-hour trading of U.S. stocks per day for five days per week.
The plan will be implemented through Cboe's EDGX exchange, with a target launch date of December 2026. If approved, the system would allow investors to trade stocks outside regular trading hours, which have historically been limited.
This initiative reflects growing market demand for trading time flexibility, especially from global investors across different time zones. Additionally, developments in electronic trading technology have created opportunities to extend stock market operating hours.
Nearly 24-hour trading is seen as potentially increasing market liquidity and efficiency, but on the other hand also presents new challenges, such as potential volatility outside core trading hours and the need for stricter oversight.
The proposal is still awaiting regulatory approval before it can be implemented. If approved, this step could potentially represent a major change in how the U.S. stock market operates in the future.