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Benchmark: How to Honestly Compare Your Investment Results
Key takeaways
- A benchmark must match the composition of your portfolio — an equity investor should not compare against bonds.
- MSCI World or S&P 500 are the right benchmarks for a global or US equity portfolio.
- Always compare over the same period and in the same currency.
- A return below the benchmark is not automatically bad — it depends on the risk you took on.
- Most active funds fail to beat their benchmark after fees over the long term.
A benchmark is a reference index against which you measure the performance of your portfolio — without one, you have no way to know whether your return was good, average, or poor.
Why benchmarking matters
When the market rises 20% and your portfolio rises 12%, you have not demonstrated skill — you have lagged. Conversely, if the market falls 15% and you lose only 8%, that is an excellent result. Absolute numbers mean nothing without context. A benchmark provides that context.
How to choose the right benchmark
- Global equity portfolio → MSCI World or MSCI ACWI
- US equities → S&P 500
- Balanced 60/40 portfolio → combination of equity + bond index (e.g. 60% MSCI World, 40% Bloomberg Global Aggregate)
- Dividend portfolio → MSCI World High Dividend or FTSE All-World
The key principle: the benchmark must reflect the same asset class and geography as your investments. Comparing an equity portfolio against a pure bond index makes no sense.
How to compare properly
Always use XIRR for your portfolio side and total return (with reinvested dividends) for the benchmark side. Compare over identical time periods in the same currency. Data for MSCI World total return is available on the MSCI website or from ETF providers — for example the return of the VWCE fund.
Return below the benchmark — what it means
Underperforming is not automatically a mistake. If you hold a more conservative portfolio and take on less risk, a lower return is justified. The problem arises when you underperform while carrying the same or greater risk. That is a signal to revisit — see the comparison of active and passive investing.
FAQ
What is a benchmark, simply put?
A benchmark is a reference index — such as the S&P 500 or MSCI World — that tells you how the market as a whole performed. You compare your own return against it to find out whether your decisions added or subtracted value.
Do I need to stick to the same benchmark forever?
You should only change your benchmark if the composition of your portfolio changes fundamentally — for example, shifting from a pure equity to a balanced portfolio. Changing the benchmark just because the current one makes you look bad is deceiving yourself.
Where can I find historical benchmark data?
On the MSCI website (for MSCI World and ACWI), S&P Dow Jones Indices (for the S&P 500), or directly from ETF providers — historical performance of VWCE or iShares Core MSCI World is publicly available and includes dividends.