The 23-hour trading day
Describe CME's nearly continuous trading schedule and explain how the daily maintenance break works.
Lesson path
Futures, Indices, and Commodities
Futures Basics
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Describe CME's nearly continuous trading schedule and explain how the daily maintenance break works.
When the futures market is actually open
Stock markets in the US trade 6.5 hours a day, 9:30am to 4pm Eastern. Forex trades nearly 24 hours a day, five days a week. Crypto trades 24/7. Futures sit in the middle — most CME contracts trade about 23 hours a day, five days a week. Knowing the exact schedule prevents you from getting caught flat-footed by a price gap or an illiquid session.
The standard CME schedule (Globex electronic platform): the week opens Sunday at 6pm Eastern Time. The market runs continuously through Friday 5pm Eastern. Each weekday has a 1-hour maintenance break from 5pm to 6pm ET — this is when the system processes daily settlement, runs system maintenance, and prepares for the next session. Some contracts have slight variations (ag futures have shorter sessions), so always confirm the specific schedule for what you're trading.
Liquidity is highly uneven across the 23 hours. The most active windows for US-traded contracts: 9:30am to 4pm ET (overlap with US stock market) sees the tightest spreads and the most volume. 3am to 9am ET (overlap with London open) is the second most active period. The quietest period is roughly midnight to 3am ET — orders can be filled, but spreads are wider and a single large order can move price more than usual. If you're trading overnight, factor that liquidity gradient into your stop placement and position sizing.
Why this matters for risk: gaps. Because futures trade through the night, big news that breaks at 2am ET can move price hundreds of points before US session opens. A stop placed inside the cash-session range can still be honored, but it may be filled far from where you set it if a gap blows through. Many retail traders only hold positions overnight when they're prepared for that. Day traders close before the daily break and start fresh the next session.
Recap: most CME futures run Sunday 6pm ET to Friday 5pm ET, with 1-hour daily maintenance breaks (5-6pm ET). Liquidity is heaviest during US and London sessions. Overnight gaps are a real risk.
Knowledge check
Answer before moving on.
1. What hours does most of the CME trading week cover?
2. Why does liquidity matter when planning overnight futures trades?
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