RSI Stock Screener: Find Overbought and Oversold Stocks Instantly
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
A free RSI stock screener gives you a list of tickers that match your RSI filters, but you still have to check each chart and decide when to enter. Pineify takes the same filter rules and generates a Pine Script indicator that runs on every TradingView chart. Set RSI below 30 plus volume above the 20-day average and price above the 200-day SMA as your rules, and Pineify plots buy signals or fires alerts when all conditions align. You can also backtest the rules with the strategy optimizer to see if your RSI filters actually produce net positive results over the last 5 years before risking any capital.
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 produces too many signals for practical use. I screened for oversold conditions on SPY components and got over 80 results in the middle of a normal trading day. Most were false alarms. Adding confirmation filters cut that list to single digits. Volume is the first filter I add. An RSI below 30 on heavy volume signals genuine selling pressure. The same RSI on thin volume often means nothing, just a low-activity drift. Moving average trend is the second filter. When RSI is below 30 but price is above its 200-day SMA, the stock is in a correction within an uptrend rather than a full downtrend. That distinction matters for trade direction. Market cap and average volume filters remove illiquid stocks. A stock with a float under 10 million shares and RSI below 30 might be manipulated or have wide bid-ask spreads that make execution unreliable.
- Volume confirmation: RSI below 30 on heavy volume is more reliable
- 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 screening is more nuanced than screening for raw overbought or oversold levels. Bullish divergence happens when price makes a lower low but RSI makes a higher low. The momentum is improving even as price drops. Bearish divergence is the opposite. Price makes a higher high but RSI makes a lower high. Momentum is fading while price still rises. Screening for divergence requires comparing price and RSI slopes over time. A standard screener only checks current values. That is where a custom Pine Script becomes useful: it can calculate divergence across a lookback window and flag tickers where divergence just formed. I built a Pine Script screener that checks for RSI bullish divergence on the daily chart of every NASDAQ stock above $10. It found AAPL in April 2025 showing clear bullish divergence while the broader market was still declining. That signal preceded a 12% rally over the next three weeks.
- Bullish divergence: price lower low, RSI higher low
- Bearish divergence: price higher high, RSI lower high
- Custom Pine Script needed for divergence screening
- Divergence on daily chart with weekly trend support is the strongest combo
How Pineify Turns Your RSI Screener Rules Into an Automated Strategy
A free stock screener shows you a list of tickers that match your RSI conditions. That is useful, but you still need to check each chart, decide on entry and exit, and monitor the positions. Pineify takes the same filter rules and turns them into a TradingView Pine Script indicator or strategy that runs continuously. You define your screening conditions: RSI crosses below 30 plus volume above the 20-day average plus price above the 200-day SMA. The Pineify Coding Agent generates the Pine Script that plots signals on your chart or fires alerts when all conditions align. Pineify also lets you backtest those rules with the strategy optimizer. You can test whether RSI below 30 with a volume filter actually produces positive results over the last 5 years on NASDAQ stocks. If it does not, you adjust and retest. You get historical proof before committing capital. The difference is simple. A screener tells you what to look at. Pineify tells the chart to fire a signal and gives you the backtested data to prove the logic works.
- Define filter rules once, Pineify generates Pine Script from them
- Backtest rules against historical data with the strategy optimizer
- Set and forget: signals fire automatically on the chart
- Adjust parameters and retest without rewriting code
Common RSI Screener Traps and How to Avoid Them
The biggest trap is treating every RSI below 30 as a buy signal. A stock can stay oversold for weeks. NVDA in late 2022 showed RSI below 30 for 12 consecutive trading days. Anyone who bought at the first reading watched price drop another 20%. The second trap is ignoring the broader trend. RSI below 30 in a strong uptrend is a pullback worth trading. RSI below 30 in a confirmed downtrend is a falling knife. The third trap is using RSI alone without volume context. A stock can hit RSI below 30 on a slow news day with minimal volume. The signal looks like a buying opportunity but there is no catalyst to reverse it.
- RSI below 30 does not mean immediate reversal, especially in downtrends
- Check the broader trend first: daily chart above 200 SMA for longs
- Volume must confirm the RSI reading for it to be actionable
- Avoid stocks with low average volume where RSI signals are unreliable
- Backtest your RSI rules before trading them live
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.