Stochastic Oscillator
Secondary momentum gauge — best in ranging markets and for timing
What is it?
Stochastic compares the current price to its price range over 14 periods. It produces %K (fast) and %D (slow) lines between 0-100. Unlike RSI, Stochastic is better for identifying exact turning points in ranging markets. K crossing above D below 20 is a classic buy signal.
Why it matters
Stochastic (weight 1.0) is SECONDARY in AIShare, providing additional overbought/oversold confirmation alongside RSI. It's especially useful when ADX shows no strong trend (ADX < 20) — in choppy markets, Stochastic signals are more reliable than MACD/EMA.
Formula
%K = (Close − Low₁₄) / (High₁₄ − Low₁₄) × 100; %D = SMA(3) of %K
Key parameters
| Parameter | Default | Description |
|---|---|---|
| K Period | 14 | Lookback for %K line |
| D Period | 3 | Smoothing for %D signal line |
| Smooth | 3 | Additional smoothing factor |
How to use
- 1%K < 20 AND %D < 20 = Oversold territory — look for bullish crossover
- 2%K > 80 AND %D > 80 = Overbought territory — look for bearish crossover
- 3%K crossing above %D below 20 = Buy signal
- 4%K crossing below %D above 80 = Sell signal
- 5Stochastic divergence from price = potential reversal
- 6Works best in ranging markets — use ADX < 25 to filter
Signals (5)
%K and %D both below 20
Oversold — strong bounce setup
%K and %D both above 80
Overbought — pullback likely
%K crosses above %D below 20
Bullish crossover from oversold — buy signal
%K crosses below %D above 80
Bearish crossover from overbought — sell signal
%K > %D and both in 20-80 range
Mild bullish momentum
Swing trading tips
- Use Stochastic in ranging markets when ADX < 25
- In trends, only take Stochastic signals in the trend direction
- Best setup: K crosses above D below 20 + price at support
- Avoid Stochastic signals during strong trends — it stays overbought/oversold
Common mistakes to avoid
- Using Stochastic in strong trends — it stays overbought/oversold for extended periods
- Taking every crossover without filtering by market regime (trending vs. ranging)
- Confusing Stochastic with RSI — they measure different things
See Stochastic on real stocks
Want to see Stochastic plotted on your own watchlist of NSE & BSE stocks? Sign in and open the full indicator workbench — AIShare uses live daily data from your watchlist (no fabricated examples, no copyrighted screenshots).
Video tutorials (3)
Stochastic Oscillator — Complete Trading Guide
Trading Rush
Stochastic RSI Strategy for Beginners
Rayner Teo
Stochastic Indicator — When & How to Use It
The Trading Channel
Third-party tutorials — linked for educational reference. AIShare is not affiliated with these creators.
Quick quiz — test your Stochastic knowledge
5 questions. Pass with 3 out of 5 for a completion badge.
1Stochastic compares the latest close to…
2Oversold Stochastic is typically…
3Stochastic works BEST in which regime?
4A classic buy-side signal is…
5A good filter to avoid stochastic whipsaws in strong trends is…
Educational self-assessment only — not a regulated qualification.
Unfamiliar with a term?
Terms like golden cross, divergence, squeeze and ATR are linked inline to their definitions. You can also browse the full Trading Glossary.
For educational purposes only — not investment advice. AIShare is not a SEBI-registered investment advisor.