Options Trading Metrics: Win Rate, Expectancy and P&L by Strategy
Updated
Win rate tells you how often you win; expectancy tells you how much you make or lose per trade on average. Expectancy = (win rate × average win) − (loss rate × average loss). Breaking both down by strategy shows which of your setups actually pay.
The core metrics
| Metric | Formula | What it tells you |
|---|---|---|
| Win rate | Winning trades ÷ total trades | How often you are right |
| Average win / loss | Total won ÷ wins; total lost ÷ losses | How big your wins and losses are |
| Expectancy | (Win% × avg win) − (Loss% × avg loss) | Average P&L per trade |
| Profit factor | Gross profit ÷ gross loss | Above 1.0 = net profitable |
| Payoff ratio | Avg win ÷ avg loss | Size of wins relative to losses |
Worked example: 20 trades
Hypothetical journal: 11 winners averaging +$420 and 9 losers averaging −$310.
Win rate = 11 ÷ 20 = 55%. Expectancy = (0.55 × $420) − (0.45 × $310) = $231.00 − $139.50 = +$91.50 per trade. Gross profit $4,620 ÷ gross loss $2,790 = profit factor 1.66. Payoff ratio = $420 ÷ $310 = 1.35.
The same trades, by strategy
| Strategy | Trades | Win rate | Avg win | Avg loss | Expectancy | Net P&L |
|---|---|---|---|---|---|---|
| LEAPS calls | 6 | 67% | +$780 | −$520 | +$347 | +$2,080 |
| Swing calls (30–90 days) | 10 | 50% | +$250 | −$230 | +$10 | +$100 |
| Short-dated calls (<30 days) | 4 | 50% | +$130 | −$225 | −$48 | −$190 |
Reading the breakdown
Overall expectancy looks healthy, but almost all of it comes from six LEAPS trades. Swing calls roughly break even and short-dated calls lose money despite a 50% win rate, because their losses are bigger than their wins. That is the kind of pattern a single overall P&L figure hides.
Small samples mislead. Four or six trades is not enough to conclude a strategy works; treat these numbers as questions to investigate, not verdicts. Recalculate as the sample grows, and compare trades that followed your plan with those that didn't.
Common mistakes
- Judging by win rate alone — a 70% win rate with small wins and large losses can lose money
- Counting partial exits as separate trades, which inflates the win rate
- Ignoring fees on small, frequent trades
- Mixing strategies with very different holding periods into one number
Get these numbers without a spreadsheet
SwingLEAP calculates realised P&L from your option entry and exit prices and contracts, and breaks historical results down by ticker, strategy, account and trade type — see the options trade tracker. To start by hand, use the free journal template.
Choosing a tool to track these metrics
If you are comparing software, our roundup of the best options trading journals looks at which tools report win rate, expectancy and P&L by strategy for options trades.