Short-Term Reversals from a Bandpass Filter

Summary

This strategy uses a recursive bandpass filter to isolate price movement within a selected cycle range. A center-period setting and bandwidth-related parameter shape the filter, which is calculated from the midpoint price and prior filter values. The trading rule reverses direction around a trigger level: filter readings above the level produce a short position, while readings at or below it produce a long position. The stated rationale is to reduce very fast and very slow fluctuations and act on shorter-term reversals.

The document describes the approach as a stock strategy, while its published test settings specify BTC/USDT futures with hourly bars and a 15-minute base period over one week. No performance statistics are supplied, and the source itself advises learning or paper trading. Filter settings can be sensitive to market conditions; reversals may fail and lead to losses, while frequent trading can make costs material. Trend filters, adaptive parameters, multiple timeframes, and explicit stop-loss rules are suggested as possible extensions rather than tested features.

Key ideas

• A recursive bandpass filter is used to extract price cycles within a parameterized range.
• The rule takes the opposite position when the filter crosses or lies on either side of a trigger level.
• The proposed use is to capture short-term reversals after filtering faster and slower price movement.
• The published test settings concern BTC/USDT futures, although the description calls the method a stock strategy.
• No performance results are reported, and the source recommends educational or paper-trading use.

Tags

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