Information Ratio Formula:
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The Information Ratio (IR) measures a portfolio manager's ability to generate excess returns relative to a benchmark, but also considers the consistency of performance. It shows the amount of active return per unit of active risk.
The calculator uses the Information Ratio formula:
Where:
Explanation: A higher IR indicates better risk-adjusted performance relative to the benchmark.
Details: The IR is crucial for evaluating investment managers as it accounts for both the excess returns generated and the risk taken to achieve those returns.
Tips: Enter active return and tracking error as decimals (e.g., 0.05 for 5%). Tracking error must be greater than zero.
Q1: What is a good Information Ratio?
A: Generally, an IR of 0.40-0.60 is considered good, 0.61-1.00 is very good, and above 1.00 is excellent.
Q2: How is Information Ratio different from Sharpe Ratio?
A: While both measure risk-adjusted returns, Sharpe Ratio uses total risk (standard deviation), while IR uses only active risk (tracking error).
Q3: What time period should be used?
A: Typically calculated using monthly returns over 3-5 years for meaningful results.
Q4: Can IR be negative?
A: Yes, if the active return is negative, though the interpretation depends on the tracking error magnitude.
Q5: What are limitations of Information Ratio?
A: It assumes normal distribution of returns and can be sensitive to the benchmark chosen.