Information Ratio Calculator
Print| Active Return (Excess Return) | 0.00% |
| Performance Assessment | - |
When institutional investors pay higher management fees to an active fund manager or hedge fund, they expect the manager to consistently outperform a benchmark index (like the S&P 500). However, evaluating excess return alone is misleading if the manager achieved that return by taking wild, unconstrained risks. To measure a manager’s true stock-picking skill per unit of excess risk taken, institutional analysts rely on the Information Ratio (IR).
Our free Information Ratio Calculator allows investors, pension funds, and CFA analysts to evaluate active management consistency. By comparing active excess returns to the portfolio’s tracking error, you can determine if a fund manager possesses true investment alpha.
How to Calculate Information Ratio
The Information Ratio measures the risk-adjusted active return generated per unit of active risk (tracking error).
The Information Ratio (IR) Formula:
Information Ratio (IR) = (Portfolio Return - Benchmark Return) / Tracking Error
Formula Components:
- Active Return (Alpha):
Portfolio Return - Benchmark Return(The annualized excess percentage return generated over the benchmark). - Tracking Error (σᵃ): The annualized standard deviation of the difference in returns between the portfolio and its benchmark index (measuring consistency).
Information Ratio Evaluation Benchmarks
In institutional asset management, a fund manager’s IR score is graded against strict historical performance tiers:
| Information Ratio Score | Institutional Manager Grading | Performance Interpretation |
|---|---|---|
| Below 0.00 | Poor / Value-Destroying | The manager underperformed the benchmark index after active fees. |
| 0.20 to 0.49 | Average / Acceptable | The manager delivers modest active alpha, but with noticeable return volatility. |
| 0.50 to 0.74 | Good / Top Decile | Strong, consistent active stock-picking skill with controlled risk. |
| 0.75 to 0.99 | Very Good / Exceptional | Rare, highly consistent alpha generation across market cycles. |
| 1.00 or Higher | Outstanding / Elite | Top 1% of institutional hedge fund managers globally. |
Step-by-Step Fund Manager Example
Imagine evaluating a US equity fund manager over a 5-year period:
- Fund Manager Average Annual Return: 14.50%
- S&P 500 Benchmark Average Return: 11.50%
- Active Excess Return (Alpha): 14.50% – 11.50% = 3.00%
- Fund Tracking Error (Volatility of Excess Return): 4.00%
Let’s calculate the Information Ratio:
IR = (14.50% - 11.50%) / 4.00%
IR = 3.00% / 4.00% = 0.75
The manager achieved an Information Ratio of 0.75, placing them in the “Very Good / Exceptional” institutional tier.
Frequently Asked Questions (FAQ)
What is the difference between Sharpe Ratio and Information Ratio?
Sharpe Ratio measures total return relative to a risk-free asset (like US Treasury bills) per unit of total risk (standard deviation). Information Ratio measures active excess return relative to a benchmark index (like the S&P 500) per unit of active risk (tracking error).
What is Tracking Error?
Tracking Error is the standard deviation of the difference between a portfolio’s returns and its benchmark’s returns over time. A low tracking error (e.g., 1-2%) indicates a closet index fund, while a high tracking error (e.g., 6-10%) indicates an aggressive, unconstrained active fund.
Can the Information Ratio be calculated using monthly data?
Yes. If calculated using monthly returns, the monthly Information Ratio must be annualized by multiplying by the square root of 12: Annualized IR = Monthly IR × √12.