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Bollinger Band and ATR Filters for Low-Volatility Breakouts

Article Strategy library · Author: ianzeng123

Summary

This strategy looks for potential breakouts after volatility contracts. It measures volatility with Bollinger Band width and ATR divided by the closing price, then compares each measure with a threshold interpolated between its rolling minimum and maximum. A market is classified as sideways when band width falls below its threshold; a long signal additionally requires normalized ATR below its threshold and price within 2% of the Bollinger midline. The described defaults use a 20-period band, a standard deviation factor of 2, a 14-period ATR, and percentile settings of 25 and 30.

The document gives the signal rules and published backtest configuration for BNB/USDT futures on an hourly timeframe over roughly one year, but reports no performance statistics. It describes only long entries and provides no explicit exit or stop-loss logic. The author flags false breakouts, parameter sensitivity, sparse signals, and the possibility that strong trends will make the sideways-market logic unsuitable. Suggested extensions include trend and volume filters and a defined exit plan.

Key ideas

  • The strategy treats narrow Bollinger Bands as evidence of a sideways, low-volatility market.
  • It normalizes ATR by closing price and uses rolling-range interpolation to set volatility thresholds.
  • A long entry requires low band width, low normalized ATR, and price close to the Bollinger midline.
  • The published rules do not specify exits or stops, and the document reports no backtest results.
  • False breakouts, sensitivity to parameters, and infrequent signals are stated limitations.

Tags

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