Capture ratios in mutual funds
Capture ratios are mutual fund performance metrics that measure how much of a benchmark’s upside (Upside Capture Ratio, UCR) and downside (Downside Capture Ratio, DCR) a scheme captures over a given period. The pair of metrics provides insight into active-fund performance asymmetry: ideally, an active fund captures more than 100% of benchmark upside and less than 100% of benchmark downside, indicating skilful asymmetric positioning.
For Indian active-fund investors, capture ratios complement Sharpe ratio and Sortino ratio by separating fund behaviour in up vs down markets, which the aggregated risk-adjusted metrics blend.
Calculation
Upside Capture Ratio (UCR)
UCR = Sum of fund returns in up-market months / Sum of benchmark returns in up-market months
Where:
- “Up-market months” = months in which the benchmark return was positive.
- UCR > 100% = fund outperformed benchmark in up months.
- UCR < 100% = fund underperformed benchmark in up months.
Downside Capture Ratio (DCR)
DCR = Sum of fund returns in down-market months / Sum of benchmark returns in down-market months
Where:
- “Down-market months” = months in which benchmark return was negative.
- DCR < 100% = fund declined less than benchmark in down months (asymmetric protection).
- DCR > 100% = fund declined more than benchmark.
Combined interpretation
Ideal:
- UCR > 100%.
- DCR < 100%.
Both conditions: fund captures more upside than benchmark and less downside, suggesting skilful active management or defensive positioning.
Worked example
NIFTY 50 monthly returns over 60 months: 36 positive months totalling +120%, 24 negative months totalling -45%.
Active fund:
- Sum of fund returns in 36 up months: +130%.
- Sum of fund returns in 24 down months: -40%.
Capture ratios:
- UCR = 130 / 120 = 108%.
- DCR = -40 / -45 = 89%.
Result: fund captured 108% of upside (better) and 89% of downside (less drawdown). Asymmetric positive.
Typical capture-ratio profiles
| Profile | UCR | DCR | Interpretation |
|---|---|---|---|
| Aggressive active | >120% | >110% | Higher beta; bullish skew |
| Skilful active | >100% | <100% | Ideal |
| Index-hugging | ~100% | ~100% | Effectively passive |
| Defensive | <90% | <80% | Lower beta; capital preservation |
| Underperforming active | <100% | >100% | Worst case; pays for active without benefit |
Capture ratios vs related metrics
| Metric | Measures | Distinction |
|---|---|---|
| UCR / DCR | Upside / downside capture separately | Asymmetric performance |
| Sharpe ratio | Return per unit of total volatility | Blended; can hide asymmetry |
| Sortino ratio | Return per unit of downside volatility | Closer to capture; aggregated |
| Beta | Sensitivity to benchmark | Symmetric assumption |
| Alpha | Excess return vs CAPM expectation | Single number for active value-add |
Capture ratios provide more granular insight than beta or Sharpe, particularly for evaluating asymmetric positioning.
Role in scheme selection
For active funds
When choosing between competing active funds:
- Compare UCR / DCR across schemes.
- Prefer schemes with UCR > 100% AND DCR < 100%.
- Consider time-period stability (5-year vs 1-year metrics can differ).
For passive funds
Capture ratios should both be close to 100% for well-managed index funds. Significant deviation indicates tracking error issues.
For hybrid / balanced funds
- Conservative hybrid: DCR much less than 100% (downside protection is the point).
- Aggressive hybrid: UCR closer to 100% (more upside participation).
Disclosure
Per revamped factsheet 2024 , capture ratios are explicitly disclosed alongside other risk metrics.
See also
- Mutual funds in India
- Sharpe ratio
- Sortino ratio
- Treynor ratio
- Information ratio
- Alpha mutual fund
- Beta mutual fund
- R-squared
- Std deviation MF
- Max drawdown
- Tracking error MF
- AMFI Risk-O-Meter
- Revamped factsheet 2024
- AMFI standardised factsheet
- TRI benchmarking
- SEBI
External references
References
- AMFI Best Practice Guidelines on performance disclosure.
- SEBI master circular on factsheet content.
- CFA Institute resources on asymmetric performance metrics.