# Long buildup — NSE scan

> Price and futures open interest rising together — fresh long positions being built, not shorts giving up.

Canonical: https://patternsradar.com/screener/long-buildup

```sift
from fno where fut_oi_change_pct > 3 and change > 1
```

When a stock rises while its futures open interest grows, new money is being committed to the upside: every added contract is a fresh long meeting a fresh short at a higher price, and price advancing tells you which side is paying up. The same move on falling OI would be short covering — position exit, not conviction. The distinction is exactly what a price-only screener cannot see.

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

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/long-buildup.