RSI Stock Screener: Find Overbought and Oversold Stocks
An RSI stock screener scans hundreds of stocks for Relative Strength Index values that signal overbought or oversold conditions, saving the time it would take to check each chart manually. The RSI measures the speed and magnitude of recent price changes on a scale of 0 to 100, with readings above 70 suggesting overbought conditions and below 30 suggesting oversold conditions.
How Pineify Helps
Pineify Custom Screener displays RSI alongside trend, volume, and volatility fields for supported stocks, ETFs, crypto pairs, and other covered markets. Sort the RSI column to find extreme readings, then inspect the chart before defining an entry. The public daily RSI Screener provides a simpler preset view.
How an RSI Stock Screener Actually Works
An RSI stock screener scans your entire watchlist or the full market for stocks where RSI crosses your chosen threshold. Instead of flipping through 50 charts looking for oversold readings, you set RSI below 30 as a filter and get a list in seconds. The default RSI calculation uses the last 14 periods. A 14-period RSI below 30 means price has moved down sharply relative to recent history. A reading above 70 means price has moved up sharply. Neither guarantees a reversal, but each signals that the move is stretched. You can adjust the period length for different trading styles. Shorter periods like 7 or 9 catch faster moves but whipsaw more. Longer periods like 21 catch bigger trends with fewer signals.
- Screens hundreds of tickers for RSI crossing chosen thresholds in seconds
- Default 14-period RSI: below 30 oversold, above 70 overbought
- Shorter periods (7-9) catch fast moves with more false signals
- Longer periods (21) filter noise but delay entries
- Screener output is a live list, not a one-time report
Best Confirmation Filters to Pair with RSI
RSI alone can return a long list because it measures recent momentum, not trade quality. Add relative volume and trend context before reviewing a result. RSI below 30 with price above the 200-day SMA describes a different setup from RSI below 30 in a persistent downtrend. Liquidity also matters because a technically valid reading can still be difficult to trade when spreads are wide.
- Volume context: compare current activity with a defined average
- Trend context: compare price to 50-day and 200-day SMA
- Liquidity filter: remove stocks with float under 10 million shares
- RSI above 70 plus declining volume suggests exhaustion, not continuation
- Multiple timeframe RSI: daily oversold with weekly still bearish means stay out
Using RSI Divergence in a Stock Screener
RSI divergence compares two sequences, not one current value. Bullish divergence means price makes a lower low while RSI makes a higher low. Bearish divergence means price makes a higher high while RSI makes a lower high. The result depends on pivot rules and lookback length, so two implementations can disagree. A Pine Script indicator can mark divergence on the current chart. Use Pineify RSI Divergence Scanner when you need a dedicated cross-symbol view.
- Bullish divergence: price lower low, RSI higher low
- Bearish divergence: price higher high, RSI lower high
- Custom Pine Script needed for divergence screening
- Daily divergence and weekly trend describe different lookbacks that can be reviewed together
From an RSI Screen to a Testable Chart Rule
A screener compares current RSI readings across a supported symbol set. After selecting a candidate, you can define a price-based chart rule such as RSI crossing below 30 while price remains above the 200-day SMA. Pineify can generate Pine Script that plots the condition or creates a confirmed-bar alert on that chart. A strategy test requires explicit entries, exits, fees, slippage, symbol, and date range. Its result describes historical behavior under those assumptions and is not proof of future performance.
- Define filter rules once, Pineify generates Pine Script from them
- Backtest rules against historical data with the strategy optimizer
- Create confirmed-bar alerts for a clearly defined chart condition
- Adjust parameters and retest without rewriting code
Common RSI Screener Traps and How to Avoid Them
The biggest trap is treating every RSI reading below 30 as a buy signal. A stock can remain oversold while its price continues to fall. The second trap is ignoring the broader trend: the same RSI value has different context above and below a long-term moving average. The third is using RSI without liquidity or volume context. These checks can improve the description of a setup, but none guarantees a reversal.
- RSI below 30 does not mean immediate reversal, especially in downtrends
- Check the broader trend first: daily chart above 200 SMA for longs
- Compare volume with a defined average rather than treating RSI in isolation
- Review spreads and average dollar volume before acting on a result
- Backtest your RSI rules before trading them live
How I check a screener result
Check 1
I first confirm the symbol universe, timeframe, and data timestamp.
Check 2
I then open the AAPL, NVDA, SPY, or QQQ chart and compare the signal with price and the 20-day volume average.
Check 3
Before I act, I write down the invalidation level and the maximum loss I am willing to accept.
This page is for informational purposes only and does not constitute investment advice. Trading stocks carries substantial risk of loss. Past performance does not guarantee future results. Always consult a qualified financial advisor before making trading decisions. Pineify is an information tool, not an investment adviser. No screener, indicator, or AI system can predict stock prices or guarantee a return.