Did You Beat the Market?

A 12% return is meaningless without context. If the S&P 500 returned 26% over the same period, you underperformed significantly. If it returned 2%, you outperformed. The comparison only works when the time periods align exactly — not calendar year vs. your actual deposit dates.

Most investors use calendar-year benchmarks while their own investing started mid-year or spans an irregular period. This mismatch systematically skews the comparison and produces a false sense of how you actually did.

For US large-cap equity investors, the market is typically the S&P 500 (SPY). But if your portfolio holds international stocks, small caps, REITs, or bonds, SPY is the wrong benchmark. Comparing a balanced 60/40 portfolio against the S&P 500 during a bull market is structurally unfair — you will always look worse even if your risk-adjusted result was excellent.

Choose a benchmark that matches your investment mandate: all-world index for global investors, a blended benchmark for multi-asset portfolios.

A portfolio returning 20% with twice the volatility of the index has not necessarily beaten anything — it has taken more risk for proportionally more return. For individual investors, informally comparing annualized returns is a reasonable starting point, but remember that higher return at higher risk is not outperformance.

A low-cost index fund returning 14% while your active portfolio returned 15% with far greater drawdowns may not represent a meaningful win.

To know if you beat the market, you need two numbers: your XIRR — the money-weighted return on your actual cash flows — and the benchmark return over the exact same date range.

If you dollar-cost averaged $1,000 per month, the right comparison isn't the index's start-to-end CAGR. It's what you would have earned if those same $1,000 monthly deposits had gone into SPY instead. The Benchmark Return tool gives you the index's period-matched return for the right comparison.

Studies consistently show that most active investors underperform the market after fees over long periods. This doesn't mean the exercise is pointless — it means you need honest data to decide whether your strategy (individual stocks, active funds, sector bets) is worth the extra effort, risk, and fees compared to simply holding a low-cost index fund.

Knowing your XIRR and your benchmark return together gives you the most important number in personal investing: your alpha.