HomeFinance & EconomicsInvesting (continued)What is Tracking Error?
Finance & Economics·2 min·Updated Mar 14, 2026

What is Tracking Error?

Tracking Error

Quick Answer

Tracking Error is a measure of how much an investment's performance deviates from a benchmark index. It indicates the consistency of an investment manager's performance compared to the index they aim to replicate.

Overview

Tracking Error is an important concept in investing that helps investors understand how closely a fund or portfolio follows a specific benchmark index. It is calculated by taking the standard deviation of the differences between the returns of the investment and the benchmark over a given period. A low tracking error suggests that the investment is closely mirroring the benchmark, while a high tracking error indicates significant divergence from it. For example, if an investor has a fund that aims to track the S&P 500 index, a tracking error of 2% means that the fund's returns typically differ from the index's returns by 2 percentage points. This can be important for investors who want to ensure that their investment strategy aligns closely with the market trends represented by the index. Understanding tracking error helps investors assess the risk associated with actively managed funds versus passive index funds. In the context of investing, tracking error matters because it provides insight into the effectiveness of a fund manager's strategy. If a fund consistently has a high tracking error, it may suggest that the manager is taking on more risk or deviating from the index in pursuit of higher returns. Conversely, a low tracking error can indicate a more stable investment that closely follows market movements, which might be preferable for conservative investors.


Frequently Asked Questions

A high tracking error indicates that the investment's performance is significantly different from its benchmark index. This could be due to the fund manager's strategy or market conditions, and it suggests more volatility in returns.
Tracking error is calculated by taking the standard deviation of the differences between the investment's returns and the benchmark's returns. This calculation helps quantify how much the investment's performance varies from the benchmark over time.
Tracking error is important because it helps investors evaluate how closely a fund is aligned with its benchmark. Understanding tracking error can assist in making informed decisions about risk tolerance and investment strategy.