What is Stochastic?
Stochastic Oscillator is a momentum indicator developed by George Lane in the 1950s. It shows where the current price is in the price range of the recent period as a value between 0 and 100.
Basic formula (period 14):
%K = [(Current closing price - 14-day low) / (14-day high - 14-day low)] × 100
%D = 3-day moving average of %K
Simply put: "How far up is the price now over the last 14 days?"
3 key stochastic signals
Signal 1: Overbought/oversold section
| section | standards | meaning |
|---|---|---|
| Overbought | Over 80 | Near the highest point in this period → possible selling pressure |
| summit | 20~80 | neutral |
| Oversold | Under 20 | Near the lowest point in this period → Buying pressure possible |
Caution: Like RSI, overbought = not necessarily sold. In a strong trend it can stay above 80.
Signal 2: %K/%D cross
- %K breaks %D from down to up (in the range below 20): 🟢 Long signal
- %K breaks %D up → down (in the range above 80): 🔴 Short signal
Crossing in overbought and oversold areas is key. Crosses in the middle section are less reliable.
Signal 3: Divergence
Bullish divergence (long signal):
- Price: Lower low ↘
- Stochastic: Increasing low ↗ → Weakening downward momentum → Anticipating an upward turn
Bearish divergence (short signal):
- Price: higher high ↗
- Stochastic: lower highs ↘ → Weakening upward momentum → Predicting a downward turn
Stochastic vs RSI — Which Should You Use?
| Compare | Stochastic | RSI |
|---|---|---|
| reaction speed | Fast | middle |
| noise | many | Less |
| sideways market | Useful | less useful |
| trending market | Maintain for a long time in overbought section | more stable |
| signal frequency | many | Less |
Recommended in practice: Sideways market → Stochastic / Trending market → RSI / combination of both → Maximize reliability
Stochastic default settings
| Settings | default | Quick Settings | Slow settings |
|---|---|---|---|
| %K period | 14 | 5 | 21 |
| %D period | 3 | 3 | 5 |
| Smooth | 3 | 1 | 5 |
Quick Setup (5, 3, 3) is more commonly used in coin futures trading. Good for capturing short-term signals.
Futures trading practical strategy
Strategy 1: Oversold bounce + cross
Conditions:
- Stochastic below 20 (oversold)
- %K breaks through %D from down to up
- RSI is also below 30 (double check)
Entry: Cross occurred bar closing price
Stop Loss: Below the previous low point
Target: Resistance before or just before Stochastic 80
Strategy 2: Short high point divergence
Conditions:
- Bearish divergence above Stochastic 80
- Price new highs, stochastic highs lowered
- Death cross occurs above 80
Entry: Closing price of the bar where the dead cross occurs
Stop Loss: Above the new price point
Target: Before reaching Stochastic 20 or major support.
Stochastic RSI (StochRSI)
A derived indicator that applies the Stochastic formula to RSI values. More sensitive and faster signals.
- Settings: 14-period RSI → Apply 14-period Stochastic there → 3-day %D smoothing
- High signal frequency as it does not stay longer at extreme values
Related guides
- Complete explanation of RSI auxiliary indicators →
- MACD and Stochastic Combination →
- Bollinger Bands + Stochastic →
- Liquidation price calculator →