Benchmark Comparison Explained
What is it?
A benchmark is the index (like the Nifty 50 or Nifty 500) that a fund is measured against. Benchmark comparison means checking a fund's return against its own benchmark over the same period, to see if it's actually adding value or just riding a rising market.
Why should you care?
A fund showing a 'good' 12% return sounds fine in isolation, but if its benchmark returned 15% over the same period, the fund actually underperformed — a positive absolute return can still mean the fund manager didn't add value.
Real-life example
A large-cap fund returns 12% over a year, which sounds respectable. Its benchmark, the Nifty 100, returned 14% over the same period. The fund underperformed its benchmark by 2 percentage points — a fact invisible if you only look at the fund's absolute 12% return in isolation.
Common mistakes
- Judging a fund's performance purely on its absolute return, without checking the benchmark over the same exact period.
- Comparing a fund to the wrong benchmark (e.g., a mid-cap fund against a large-cap index).
- Drawing conclusions from a single short period instead of checking rolling returns against the benchmark over time.
Absolute return vs benchmark-relative performance (illustrative)
| Fund return | Benchmark return | Verdict |
|---|---|---|
| 12% | 14% | Underperformed benchmark by 2 points, despite a positive return |
| 16% | 14% | Outperformed benchmark by 2 points |
FAQ
Where do I find a fund's benchmark?
Every fund's fact sheet discloses its official benchmark index — this is required disclosure for all mutual funds in India.
Is beating the benchmark the only measure of a good fund?
It's an important one, but consistency (see Rolling Returns Explained) and risk-adjusted performance (see Sharpe vs Sortino Ratio) matter too — a fund that beats its benchmark with much higher volatility isn't a clean win.
What's the difference between benchmark comparison and alpha?
Benchmark comparison is the raw return difference; alpha (see Alpha Explained) adjusts that difference for the risk taken to achieve it.
Do index funds need benchmark comparison?
Index funds aim to match their benchmark, not beat it — for them, the relevant check is tracking error (how closely they follow the index), not outperformance.
See this concept applied to your own portfolio
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