# Fifteen sessions under the 20-day — NSE scan

> Fifteen or more unbroken closes below the 20-day average, RSI under 35. A slump old enough to be exhausted.

Canonical: https://patternsradar.com/screener/long-slump-oversold

```sift
where countstreak(close < sma(20), 60) >= 15
  and rsi(14) < 35
```

A stock that has closed under its 20-day average for fifteen sessions running, with RSI under 35, has been sold steadily rather than dumped in a day. Steady selling exhausts itself in a way a single crash does not. `countstreak` is what keeps the run unbroken: one close above the average resets it to zero, so a name that has been bouncing around the line never qualifies. The list is short and skewed towards stocks with genuine problems. The value is in the ones that are simply out of favour.

Category: [Reversals](https://patternsradar.com/scans/reversals.md). Default universe: top 500 by 20-day turnover.

More reversals: [RSI oversold turning up](https://patternsradar.com/screener/rsi-oversold-turn.md), [RSI overbought](https://patternsradar.com/screener/rsi-overbought.md), [Golden cross](https://patternsradar.com/screener/golden-cross.md), [Death cross](https://patternsradar.com/screener/death-cross.md), [MACD bullish crossover](https://patternsradar.com/screener/macd-bullish-cross.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/long-slump-oversold.

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Price and delivery data from the [eod2](https://github.com/BennyThadikaran/eod2) dataset: National Stock Exchange of India end-of-day files, split- and bonus-adjusted, updated after each close. Not affiliated with or endorsed by NSE. PatternsRadar is a research tool. Nothing here is investment advice or a recommendation to buy or sell anything.