
Extended-hours volume indicator that compares pre-market and after-hours trading volume to the stock's average daily volume, helping traders identify potential significant market movements.
Explore complementary indicator rolesHow it works
The Extended-Hours Volume indicator accumulates trading volume during pre-market (04:00-09:30 ET) and after-hours (16:00-20:00 ET) sessions, comparing it to the stock's 21-day average daily volume. It provides three key metrics: after-hours volume, pre-market volume, and extended hours total volume.
The indicator calculates the extended hours volume as a percentage of the average daily volume, giving traders a quick snapshot of trading interest outside standard market hours. This helps quantify unusual trading activity and potential market momentum before the regular trading session begins.
Why it may be useful
Extended-hours volume can be a critical predictor of potential significant price movements, offering traders early insights into market sentiment and trading interest. By measuring volume against the stock's typical daily trading activity, traders can identify which stocks are experiencing unusual trading patterns that might signal important news or market shifts.
The indicator helps traders filter and prioritize potential trading opportunities by providing a quantitative measure of market interest. It allows traders to focus on stocks with substantial extended-hours volume, which often precedes outsized intraday price ranges and increased trading opportunities.
When to explore it
This indicator is most effective during pre-market hours, particularly between 08:30-09:25 ET, when traders are preparing for the market open. It works best when scanning multiple stocks to identify those with significant extended-hours volume, typically filtering for stocks with 20-50% of average daily volume during extended hours.
Traders should use this indicator in conjunction with other technical analysis tools, focusing on stocks showing strong extended-hours volume that meet specific criteria such as being above previous day's close or showing potential for opening range breakout strategies. It is particularly useful for day traders and scalpers looking to identify high-momentum trading opportunities.
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What we’ve verified
Access, alerts and repainting behaviour have not been independently verified for this indicator. Check the creator’s current publication and settings.
General descriptions and classifications are recovered research. Verified details above identify the specific checks we have completed. Check the creator’s current publication for later changes.




