In plain words: A standard or index against which the performance of an asset or investment fund can be measured.
A benchmark is a reference point used to judge how an investment is performing. Rather than asking only whether a portfolio went up, a benchmark lets you ask whether it did better or worse than a relevant comparison. Common benchmarks are broad market indices that track a defined group of assets, giving a fair yardstick for measuring results.
Why does a benchmark matter when judging returns?
A return on its own says little without context. Earning 6% sounds good until you learn a comparable index returned 10%. Benchmarks supply that context, helping you separate genuine skill or strategy from the general direction of the market and assess whether an investment fund is adding value after costs.
How is the right benchmark chosen?
A useful benchmark matches the asset mix it is being compared against: a global shares portfolio should be measured against a global shares index, not a bond index. Comparing against the wrong benchmark can flatter or unfairly penalise a strategy. Aligning the comparison with a portfolio's asset allocation keeps the assessment honest.
Key takeaways
- A benchmark is a reference index for measuring performance.
- It adds context that a raw return figure lacks.
- The benchmark should match the assets being compared.