TRACKING ERROR
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The volatility of the difference between portfolio returns and its benchmark.
Summary
Tracking error measures how closely a portfolio follows its benchmark by calculating the standard deviation of the differences between the portfolio's returns and the benchmark's returns over time. Think of it as a 'consistency score' - a low tracking error means the portfolio closely mirrors its benchmark, while a high tracking error indicates the portfolio's performance varies significantly from the benchmark. It's expressed as a percentage and is crucial for evaluating how well index funds or actively managed portfolios achieve their stated objectives.
Usage Context
Understanding tracking error is essential when evaluating fund performance, comparing passive investment options, assessing portfolio management effectiveness, and making investment decisions based on how closely you want your investments to follow a specific market benchmark.
Common Confusions
- Confusing tracking error with tracking difference (tracking error is volatility, tracking difference is the average difference)
- Thinking higher tracking error is always bad (it depends on investment strategy)
- Mixing up tracking error with total portfolio risk or volatility
- Assuming tracking error only applies to index funds (it applies to any portfolio with a benchmark)
