Bollinger Band Breakout Entries and Lower-Band Exits

Summary

This document describes a long-only momentum and trend-following strategy using Bollinger Bands. It opens a position when the close rises above the upper band and closes it when the close falls below the lower band. The middle band can use one of several moving-average types, while the band width is set by a standard-deviation multiplier. The strategy settings allow the price source, length, offset, and date window to be changed.

The published backtest configuration uses BTC/USDT futures on daily bars from late 2019 to early 2025, with commission and slippage specified in the strategy settings. No performance results are supplied, so the document offers no evidence that the approach was profitable. It warns that sideways markets may produce false signals, moving averages lag, parameter choices matter, and using all available capital per trade can lead to large drawdowns. The suggested additions, such as trend filters and dynamic position sizing, are proposals rather than tested improvements.

Key ideas

• A close above the upper Bollinger Band opens a long position, and a close below the lower band closes it.
• The middle band supports several moving-average methods, and the band width depends on a standard-deviation multiplier.
• The strategy exposes settings for price source, calculation length, offset, and test dates.
• The described daily BTC/USDT futures backtest includes cost assumptions but reports no performance results.
• Range-bound markets, indicator lag, parameter sensitivity, and full-capital allocation are identified as risks.

Tags

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