A trading journal is only as useful as the metrics in it. A column of daily P&L tells you how you felt, not what to fix. The metrics that turn a journal into a feedback loop are the ones that isolate your edge and your leaks.

The core numbers

Track, over a real sample: expectancy (your average edge per trade), average R won and lost (in R-multiples, sizing-independent), win rate (only meaningful alongside average R — see win rate vs. average R), and average winner vs. average loser (are you letting winners run and cutting losers, or the reverse?). These four together tell you whether you have an edge and where it's leaking.

The behavioral numbers

Just as important: rule adherence (what % of trades followed your plan?), results by setup (which tagged setups actually make money?), and results by time of day (are you bleeding in the midday chop?). This is where the actionable insight lives — you'll usually find a small number of setups or hours carrying your edge and a few quietly draining it.

Log what you can change. “Lost $200 Tuesday” is history; “my opening-range setup is +1.4R and my midday fades are −0.6R” is a decision.

Making it a loop

The metrics only matter if they drive change. Review them on a schedule (see the weekly review ritual), cut or fix the setups and hours that lose, and double down on what works. Separate a good process from a good outcome. NoVo logs every trade and its context automatically — the raw material for exactly this kind of honest review.