What is extended-hours trading?Extended-Hours Trading

Trading sessions outside regular hours (such as US pre-market and after-hours). Fewer people trade, the bid-ask spread is wider and prices can swing more sharply.

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US Stock Rules
Pre-market, Regular Hours and After-Hours
Regular US trading hours are 9:30–16:00 Eastern Time, with pre-market and after-hours sessions on either side; converted to Asian time, daylight saving and standard time differ by 1 hour.

Related terms

spread
limit order
call auction
continuous trading
trading hours
daylight saving time

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Go to “Pre-market, Regular Hours and After-Hours”