Extended Hours Data
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Last updated
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We offer extended-hours trading data for many US symbols. For US markets, after-hours trading data covers the 4 hours after market close (4:00 PM–8:00 PM Eastern time), and pre-market data covers the 5.5 hours before the market opening for the day (4:00 AM–9:30 AM Eastern time).
Pre-market and after-hours price quotes are available on the page during pre- and post-market trading sessions.
In addition, extended hours data can be charted on both SharpCharts and StockChartsACP charts. Check the Extended Hours checkbox in the or on the . When this box is checked, extended hours bars will be added to your intraday chart in color-coded sections (purple for after-hours, blue for pre-market) if extended hours data is available for that symbol.
Note that securities are generally more thinly traded during pre-market and after-hours sessions than during regular market hours. Extended-hours price bars will only be shown if trading activity has occurred during that bar's timeframe. Volume data and volume-based indicators are not available for any extended hours bars.
Historical pre-market and after-hours data are available, going back approximately ten trading days.