The information ratio can be calculated using the following formula:
Information Ratio (IR) = (Portfolio Return - Benchmark Return) / Tracking Error
Where:
Portfolio Return is the return generated by the investment portfolio.
Benchmark Return is the return of the chosen benchmark index.
Tracking Error is the standard deviation of the difference between the portfolio return and the benchmark return.
Information Ratio Formula
The formula for the information ratio is simple:
IR = Excess Return / Tracking Error
Where:
Understanding Components of Information Ratio
The key elements used to assess how a portfolio performs are as follows:
Excess return: This represents the additional return earned by a portfolio over its benchmark. It shows how much value the portfolio generates beyond simply matching the benchmark’s performance.
Tracking error: This measures the variability of the portfolio’s excess returns compared to the benchmark. A higher tracking error indicates larger deviations from the benchmark, reflecting more active investment decisions.