Mean Reversion
Overview
Mean reversion trading is based on the principle that prices tend to return to a statistical average over time. When price deviates significantly from its mean (typically represented by a moving average or VWAP), mean reversion traders take positions expecting a snapback toward that average. This approach systematically exploits overextended moves and excesses in market sentiment.
Key Concepts
Price oscillates around a mean value (moving average, VWAP, or Bollinger Band midline). Standard deviation measures how far price has moved from the mean. Entries occur at extreme deviations (2+ standard deviations). Bollinger Bands, Keltner Channels, and Z-score indicators quantify deviation. Works best in ranging and moderately trending markets — fails in strong trends.
Entry Signals
Enter when price touches or exceeds the outer Bollinger Band (2 standard deviations from the mean). Buy when price is more than 2 ATR below the 20-period mean with RSI below 20. Use Z-score readings above 2 or below -2 to identify extreme deviation. Confirm with a reversal candle at the extreme level before entering.
Exit Signals
Target the mean itself (moving average midline) as the primary take-profit level. Place stops beyond the extreme — if price continues to deviate, the trend may be too strong for mean reversion. Take partial profits at the first standard deviation band. Exit if momentum indicators show no signs of reverting despite reaching extreme levels.
Best Timeframes
5M, 15M, 1H, 4H
Pro Tips
Mean reversion is not the same as catching falling knives — always wait for a confirming reversal signal at the extreme rather than blindly buying the dip. This strategy works poorly in low-liquidity or strongly trending markets. Combine mean reversion entries with a trend filter — only take mean reversion trades in the direction of the higher-timeframe trend.
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Day Trading Fundamentals
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