The rules
- Slow stochastic (14, 3, 3): where the close sits in the last 14 days’ high–low range, 0 to 100, averaged over 3 days (%K), with a 3-day average of %K (%D).
- Stochastic RSI (14, 14, 3, 3): the same calculation run on the 14-day RSI instead of the price, which makes it faster and jumpier.
- Under 20 is called oversold, over 80 overbought. A cross is %K crossing %D in the last 3 daily closes; the bullish preset needs %D under 20, the bearish one %D over 80.
Oversold readings in a market below its 200-day average often get more oversold. The “oversold in an uptrend” preset keeps only markets above their 200-day average.
Calculated in your browser from daily candles. Not investment advice.
Frequently asked questions
What’s the difference between stochastic and stochastic RSI?
The stochastic compares the close with the recent high–low range of the price. The stochastic RSI does the same with the RSI, so it reaches extremes much more often. Use it for short-term timing, not on its own.
Which markets can it scan?
Four, picked with the Market buttons above the table. Crypto (the default) scans the 250 busiest USDT pairs on Binance. Crypto perps scans the 200 busiest USDT perpetual futures on OKX. Both are free public data and need no key. US stocks scans about 600 US stocks and ETFs with your own free Alpaca key, and CME futures scans about 25 front-month CME Group contracts (stock indexes, Treasuries, oil, gas, metals, grains, livestock, currencies and CME bitcoin) with your own free Massive key.
Why do stocks and futures need a key?
Stock and futures prices are licensed data, so a website can’t hand them out for free. Alpaca (for stocks) and Massive (for futures) give anyone a free data key. Your key is saved only in your browser and sent only to that provider. See how to get a free Alpaca key and how to get a free Massive key for futures.
Is the data real-time?
Crypto and crypto perps are live from Binance and OKX, on daily candles that start at 00:00 UTC (today’s candle is still forming). Alpaca’s free stock data is 15 minutes behind the market, and Massive’s free futures plan is 8 hours delayed. Turn on auto-refresh next to the results to update the table in place every 30 seconds, minute or 5 minutes.