What is the Information Ratio?

The Information Ratio (IR) measures how much active return (Alpha) a fund manager generates per unit of active risk taken. Active risk — called Tracking Error — is how much the fund's returns deviate from the benchmark's returns. Together, they answer: "The manager took big active bets — was it worth it, and were they consistently right?"

It is the most powerful metric for evaluating fund manager skill because it adjusts outperformance for the consistency with which it was delivered. A fund that beat the benchmark by 8% in one year but underperformed by 6% in another has the same average outperformance as a fund that beat by 1% steadily every year — but the consistent fund has a far superior Information Ratio.

Formula
Information Ratio = Active Return ÷ Tracking Error
Active Return: Fund Return minus Benchmark Return (annualised) Tracking Error: Standard deviation of the active return over time High IR: Large and consistent outperformance — strong manager skill

Why Consistency of Alpha Matters More Than Magnitude

Two fund managers both delivered 4% annualised Alpha over 5 years. Manager A beat the benchmark by 10% in year 1, underperformed by 6% in year 2, and oscillated widely. Manager B beat by 3–5% every single year. For an SIP investor making regular investments, Manager B is far more valuable — their consistent outperformance means your regular investments are always growing above benchmark.

📊 Real World Example

SBI Small Cap — India's Consistency Case Study

SBI Small Cap Fund, over the 2016–2024 period under R. Srinivasan, is widely regarded as having one of the best Information Ratios in the Indian small cap space. The fund did not always generate the highest absolute returns in any given year — but it consistently delivered above-benchmark returns with relatively low tracking error. For SIP investors who stayed invested through the 2018–2020 drawdown, this consistency significantly improved their overall XIRR.

Fund Profile5Y Avg Active ReturnTracking ErrorInformation Ratio
Consistent outperformer+4%4.2%0.95
Volatile outperformer+4%9.5%0.42
Closet indexer+0.5%2.1%0.24
For SIP investors, a high Information Ratio is especially valuable. Since you invest at regular intervals, consistent above-benchmark returns compound much better than volatile outperformance that appears in large spikes.

Frequently Asked Questions

Is Information Ratio available for Indian funds on public portals?
Not always directly. Value Research and Morningstar India show Tracking Error, and some platforms show Alpha separately. You can calculate IR manually by dividing the annualised Active Return (fund return minus benchmark return) by the Tracking Error figure shown on the platform.
What is a realistic Information Ratio for a small cap fund?
In the small cap space, an IR of 0.4–0.6 over 5 years is respectable. Above 0.7 is excellent. Above 1.0 is exceptional. The small cap universe's inherent volatility makes consistently high IR harder to achieve than in large cap or balanced funds.