Bollinger band reversion strategyvsEMA fast/slow crossover strategy
Bollinger band reversion strategy: Fade a 2-sigma stretch below the mean and exit when price tags the middle band. Β· EMA fast/slow crossover strategy: Catch sustained moves by going long when the fast EMA crosses above the slow EMA.
Bollinger band reversion strategy
Fade a 2-sigma stretch below the mean and exit when price tags the middle band.
EMA fast/slow crossover strategy
Catch sustained moves by going long when the fast EMA crosses above the slow EMA.
Indicators
- Bollinger Bands (period 20, Ο Γ 2)
- EMA (period 12)
- EMA (period 26)
Timeframes
Bias
Long only
Long only
Market fit
Range-bound
Strong directional trends
Entry rules
- Enter long when close is below the lower Bollinger band β a 2Ο stretch below the 20-bar mean.
- Single position; 3-bar cooldown after exit.
- Enter long the bar after EMA(12) crosses above EMA(26).
- Cooldown of 2 bars after an exit prevents instant whipsaw re-entries.
Exit rules
- Exit when close pushes back above the middle band.
- Hard 3% stop-loss; 2% trailing stop locks in any reversion gain.
- Close on the down-cross: EMA(12) back below EMA(26).
- Trailing stop of 4% locks in profits if the cross reverses without a clean down-cross.
Expected behavior
Smooth equity curve in low-volatility regimes with frequent small wins. Sharp drawdowns when a trend extends and price stays pinned below the lower band β the strategy expects mean reversion that may not arrive.
Long flat periods broken by sharp upward jumps when a sustained trend lines up β and visible drawdowns during ranging markets when the cross fires both ways inside a few bars.
Complexity
Which one is right for you?
Derived from the bias, timeframe and indicator profile of each strategy β not a back-test forecast.
When to pick Bollinger band reversion strategy
- You expect range-bound β the thesis is "Fade a 2-sigma stretch below the mean and exit when price tags the middle band."
- You want a long-only bot on 15mβ4h candles with a balanced rule-set.
- You're comfortable monitoring 1 indicator (Bollinger Bands (period 20, Ο Γ 2)).
Fade a 2-sigma stretch below the mean and exit when price tags the middle band.
When to pick EMA fast/slow crossover strategy
- You expect strong directional trends β the thesis is "Catch sustained moves by going long when the fast EMA crosses above the slow EMA."
- You want a long-only bot on 1hβ1d candles with a balanced rule-set.
- You're comfortable monitoring 2 indicators (EMA (period 12), EMA (period 26)).
Catch sustained moves by going long when the fast EMA crosses above the slow EMA.
Bollinger band reversion strategy
Fade a 2-sigma stretch below the mean and exit when price tags the middle band.
EMA fast/slow crossover strategy
Catch sustained moves by going long when the fast EMA crosses above the slow EMA.
Related comparisons
Other pairings that involve one of these strategies.
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