# Volume breakout — NSE scan

> Twice normal volume with price up more than 3% — something changed today.

Canonical: https://patternsradar.com/screener/volume-breakout

```sift
where volume > 2x avg(volume, 20)
  and change > 3
  and close > sma(20)
```

Volume is the one input that cannot be drawn on a chart after the fact: twice the twenty-day average means twice as many people acted. Paired with a 3% advance and a close above the 20-day average, it usually marks news, a result, or an institution starting a position.

Category: [Breakouts](https://patternsradar.com/scans/breakouts.md). Default universe: top 500 NSE stocks by 20-day turnover.

Guides: [How to backtest a stock scan, no code needed](https://patternsradar.com/blog/how-to-backtest-a-stock-scan.md), [Volume breakout screener for Indian stocks](https://patternsradar.com/blog/volume-breakout-screener-india.md).

The rendered page runs this scan against the latest session and can replay it across the last 250 sessions to measure its hit rate: https://patternsradar.com/screener/volume-breakout.