February 2025 · 10 min read
Most traders track one metric: P&L. That's like judging a business by revenue alone. Here are the 7 metrics that actually tell you whether you have a sustainable edge — and how to read each one.
Gross winning P&L ÷ Gross losing P&L (absolute value)
Why it matters: A 60% win rate looks great — until you realize your average winner is $50 and your average loser is $300. Profit Factor captures this asymmetry. Anything above 1.5 is a solid edge. Below 1.0 means you're systematically losing money.
Example
You make 10 trades: 6 winners averaging +$100 and 4 losers averaging -$200. Win rate = 60%, but profit factor = (6×$100) / (4×$200) = 600/800 = 0.75. You're losing money.
Percentage of closed trades that were profitable
Why it matters: Win rate is useful but never in isolation. Premium sellers (credit spreads, strangles) often have 70–85% win rates because they collect small premiums on high-probability trades. That same high win rate with large losers leads to ruin.
Example
A credit spread seller with 80% win rate can still blow up if the 20% of losers are 5× larger than the winners. Always pair win rate with profit factor.
The largest peak-to-trough account decline over the analyzed period
Why it matters: This metric tells you how much capital you need to survive your own worst historical stretch. If your max drawdown was -$8,000 but your account is $10,000, you came within $2,000 of blowing up. Most traders discover this number far too late.
Example
Account goes $50k → $58k → $43k → $52k. The drawdown is $58k - $43k = -$15k, or -25.9%. That's the number you need to psychologically and financially survive.
Average P&L of profitable trades ÷ Average P&L of losing trades
Why it matters: This ratio determines whether your strategy is structurally sound. Credit spread sellers intentionally have a ratio < 1.0 (small wins, occasional large losses) — but compensate with high win rate. Trend-followers target > 2.0. Knowing your ratio tells you whether your results are expected or whether something is broken.
Example
Average winner: +$350. Average loser: -$200. R-multiple = 1.75. For every dollar you risk, you make $1.75 when right. That's a sustainable edge.
Net profitability broken down by Monday–Friday
Why it matters: Almost every active trader has 1–2 weekdays that drag down their overall performance. Monday gap openings, Thursday/Friday expiration pressure — these create systematic performance patterns. Once you know your worst days, you can reduce size or sit out entirely.
Example
Analysis of 6 months of trading reveals that Mondays and Fridays are consistently negative, while Tuesday–Thursday are profitable. Simply not trading on those days would significantly improve results.
(Average return - Risk-free rate) ÷ Standard deviation of returns
Why it matters: Sharpe ratio normalizes your returns for volatility. Two traders can have identical total returns — but one with consistent daily gains and one with wild swings have very different risk-adjusted performance. For options traders, Sharpe ratio exposes whether your P&L is actually skillful or just lucky variance.
Example
A Sharpe of 1.0 means your returns are proportional to the volatility you're taking. Above 1.5 is excellent for discretionary traders. Below 0.5 suggests your returns don't justify the risk.
Total commissions + fees as a percentage of gross profit
Why it matters: Options traders pay per-leg commissions. A busy spread trader with 4-legged iron condors pays 4 commissions to open and 4 to close. At $0.65/contract × 4 legs × 10 contracts × 8 = $208 in fees for one round-trip condor. Tracking fee impact as a % of gross shows if you're trading your way out of profitability.
Example
Gross P&L: +$2,400. Total fees: $600. Fee impact: 25%. One quarter of your profits are going to the broker. Either reduce frequency, increase position size, or switch to a lower-fee platform.
Calculating these manually from a broker statement is painful and error-prone. InsightTrader computes all 7 metrics automatically from your broker CSV — just upload and they're all there.
Import your broker CSV — free, no card required.
Analyze my trades →