Capture Ratio
The percentage of a trade's maximum favorable excursion (MFE) that was actually realized as profit upon exit.
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Explained Simply
Capture ratio = (Exit P&L) ÷ (MFE). A capture ratio of 70% means you exited with 70 cents of every dollar the trade offered at its peak. A capture ratio of 100% is theoretically perfect (you sold at the exact high), but in practice unachievable. Most skilled traders aim for 60–80% capture ratios on trend trades. Very low capture ratios (under 40%) indicate either early exits (selling before the move completes) or allowing winners to fully reverse before closing. Capture ratio is a more nuanced exit quality metric than simply looking at profit, because it normalizes for how much opportunity was present — a $5 gain on a trade that peaked at $20 (25% capture) is worse exit quality than a $3 gain on a trade that peaked at $4 (75% capture).
Why Capture Ratio Matters More Than Raw P&L
Dollar profit alone is an incomplete measure of exit quality. A $300 gain sounds better than a $200 gain, but if the first trade peaked at $1,200 (25% capture) and the second peaked at $250 (80% capture), the second trader executed far better. Capture ratio normalizes for opportunity, allowing fair comparison across trades, strategies, and time periods. This is especially important for systems evaluation: a strategy may generate consistent dollar profits while systematically leaving 60% of each move on the table — a signal that trailing stops or target placement is badly calibrated.
Target Capture Ratios by Strategy Type
Different strategies have different realistic capture ratio benchmarks. Scalping strategies trading for small, rapid moves typically achieve 70–85% capture because the full move is short and exits are aggressive. Momentum day trades, which ride multi-point intraday swings, realistically target 55–75% capture — giving the trade room to breathe means accepting some giveback. Swing trades holding multiple days often see 40–60% capture due to overnight noise and wider trailing stops. Understanding these benchmarks lets you assess whether your capture ratio reflects appropriate exit mechanics or a systematic problem with early selling or excessive giveback.
Improving Capture Ratio: Trailing Stops vs. Target Orders
There are two structural ways to improve capture ratio. First, calibrate trailing stops using ATR multiples scaled to the strategy's typical move profile — too tight a trailing stop cuts moves short; too loose allows large givebacks. Second, replace fixed take-profit targets with momentum-based exits: hold as long as momentum is strong and only exit when momentum indicators (MACD histogram, RSI divergence, volume drying up) signal exhaustion. Hybrid approaches are common: take partial profits at a fixed target (capturing a guaranteed fraction), then trail the remainder for the extended move. Tradewink's DynamicExitEngine implements this hybrid, updating trailing distances every tick based on current ATR and captured MFE.
Capture Ratio vs. Up/Down Capture Ratio (Portfolio Context)
In portfolio management, 'capture ratio' often refers to up-capture and down-capture ratios — measuring how much of a benchmark's upside a strategy captures versus how much of its drawdowns it avoids. A strategy with 90% up-capture and 60% down-capture outperforms the benchmark on a risk-adjusted basis. This is distinct from the per-trade capture ratio (MFE-based) used in day trading analysis. When Tradewink's TradeAnalyzer references capture ratio, it always means the per-trade MFE-based metric, not the portfolio benchmark comparison.
How to Use Capture Ratio
- 1
Calculate Upside and Downside Capture
Upside Capture = Your Return in Up Months ÷ Benchmark Return in Up Months × 100. Downside Capture = Your Return in Down Months ÷ Benchmark Return in Down Months × 100. You need at least 12 months of data including both up and down months.
- 2
Interpret the Ratios
Ideal profile: upside capture >100% (you beat the market in good months) with downside capture <100% (you lose less in bad months). An 110/80 capture profile means you capture 110% of gains and only 80% of losses — a strong risk-adjusted result.
- 3
Use for Manager/Strategy Selection
Compare strategies by their capture ratio (upside capture ÷ downside capture). A strategy with 90/60 capture (ratio = 1.5) is better risk-adjusted than one with 120/100 (ratio = 1.2), even though the second captures more upside. The ratio reveals who truly adds value.
Frequently Asked Questions
What is a good capture ratio for a day trade?
Most experienced day traders target 60–75% capture on momentum trades. Achieving 80%+ consistently is rare and may indicate exits are too aggressive (capturing near the high but potentially leaving extended moves). Below 50% suggests either premature exits or allowing too much giveback before closing — both are correctable with better trailing stop calibration.
Can capture ratio be above 100%?
No. MFE represents the maximum favorable move, so the theoretical maximum capture is 100% (selling at the exact peak). In practice, no system exits at the precise high consistently. Average capture ratios above 90% should be treated with skepticism — they likely indicate an MFE calculation error or an extremely short hold time where the exit and MFE occurred within the same bar.
How is capture ratio different from win rate?
Win rate measures how often a trade is profitable. Capture ratio measures how much of the available profit was realized on trades that were profitable. A strategy can have a high win rate with poor capture ratio (many winners but small gains relative to the move) or a lower win rate with excellent capture ratio (fewer winners but each captures most of the move's potential). Both metrics together tell a fuller story of exit quality.
Does Tradewink track capture ratio by strategy?
Yes. Tradewink's TradeAnalyzer aggregates capture ratio by strategy type, ticker, and time of day. The DynamicExitEngine uses these rolling averages as feedback signals — if a strategy's average capture ratio drops below the configured threshold, trailing stop distances are automatically tightened to protect more of the move before reversal.
How Tradewink Uses Capture Ratio
The TradeAnalyzer computes capture ratio for every closed position and aggregates it by strategy type, ticker, and time of day. The DynamicExitEngine uses rolling capture ratio as a feedback signal — if a strategy's average capture ratio drops below 50%, the system automatically tightens trailing stops to lock in more of the move before reversal. Post-trade AI reflections explicitly call out capture ratio and suggest exit adjustments.
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See Capture Ratio in real trade signals
Tradewink uses capture ratio as part of its AI signal pipeline. Get daily trade ideas with full analysis — free to start.