L4.2 — Measuring Process Compliance as a KPI

Process compliance rate is the percentage of trades where you followed every rule in your checklist. A 95% compliance rate means 1 in 20 trades involved a rule violation. A 70% compliance rate means 3 in 10 trades were placed outside your rules. Both traders may have the same win rate, but the 70% trader has no idea whether their strategy works because their execution is too inconsistent to measure.

Track compliance as a weekly number. At the end of each week, count total trades and total fully compliant trades. The ratio is your compliance rate. Target 90%+ before drawing any conclusions about whether your edge is positive or negative. Below 90%, the edge is not being tested — the behaviour is.

When the compliance rate drops, investigate before assuming the strategy is failing. In most cases, a performance decline coincides with a drop in compliance. Fixing the compliance — not the strategy — restores performance. This insight, documented in your journal, is the single most valuable lesson most improving traders eventually learn.