Choppiness Index Indicator Explained

The Choppiness Index (CHOP) compresses the trend-or-range question into one 0–100 score by comparing the sum of true ranges to the total range traveled. High readings (above ~61.8) mean the market churned in place; low readings (below ~38.2) mean it actually went somewhere.

How It Works

• Log ratio of Σ(true range) to the window's total high-low span, normalized 0–100.
• Above 61.8: consolidation regime. Below 38.2: trending regime.
• Direction-blind — it scores how, not where, the market moved.

How to Trade It

CHOP is the canonical regime switch: run breakout/trend logic only below the threshold, mean-reversion only above it. Watching CHOP fall from high levels is also an early breakout tell — consolidations end as choppiness drains.

Building It in Setup.Cash

Add Choppiness Index in the strategy builder — the length input controls its sensitivity — and use its value in any entry, exit, or filter condition. You can also combine it with other tools in the Indicators Lab or via the AI indicator generator. Compare with the Efficiency Ratio and VHF. For the full category overview, see the volatility & statistics library guide.

Volatility indicators qualify trades rather than generate them — backtest your system with and without this filter and compare the drawdowns.