Bollinger Band Breakouts with Equity-Based Position Sizing

Summary

This strategy describes entries when price crosses beyond a Bollinger Band: a move above the upper band signals a long, while a move below the lower band signals a short. The stated setup uses a 20-period band with a two-standard-deviation width and calculates order quantity from account equity divided by price. An opposite breakout can close an existing position. The document also describes a 100-day moving average as trend confirmation, but the supplied signal conditions do not use that average to filter entries; it is plotted only.

The discussion identifies whipsaws in ranging markets, delayed moving-average signals, fixed band settings, absent trailing stops, and unmodeled trading costs as limitations. It proposes volatility filters, adaptive parameters, additional confirmation, and drawdown limits. Backtest settings specify BTC/USDT futures on an hourly chart during a historical month, but no returns, drawdowns, or other performance evidence are reported. Equity divided by price sizes exposure based on account value; by itself, it does not specify a fixed risk per trade or a protective stop. The described setup therefore needs testing with realistic costs and explicit risk controls before its practical behavior can be assessed.

Key ideas

• Entries occur when price crosses above the upper band or below the lower band.
• The band settings are a 20-period lookback and two standard deviations.
• Position quantity is calculated from account equity divided by the current price.
• The 100-day average is plotted but does not appear in the supplied entry conditions.
• The stated backtest settings have no accompanying performance results.

Tags

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.