Knowing your investment return is essential for evaluating whether your portfolio is on track. But not all return metrics tell the same story. Understanding total return, CAGR, and real returns helps you see the full picture.
Total Return vs Annualized Return
Total return tells you how much your investment grew in absolute dollars. If you invested $10,000 and it is now worth $18,500, your total return is $8,500 or 85%. But this does not tell you how good that performance was — 85% over 2 years is excellent, but 85% over 20 years is mediocre.
That is where CAGR (Compound Annual Growth Rate) comes in. CAGR smooths your return into an annual equivalent, making it easy to compare investments with different time horizons. The formula is: CAGR = (Ending Value / Beginning Value)^(1/years) - 1.
Why Real Returns Matter
A 7% annual return sounds great — until you realize inflation averaged 3% during that period. Your real return, adjusted for inflation, is only about 4%. Over long timeframes, inflation can erode half your purchasing power. Always evaluate investments in real terms, especially for retirement planning.
Common Benchmarks
- S&P 500: The broad US stock market has averaged roughly 10% annually before inflation since 1926.
- US Aggregate Bonds: Government and corporate bonds have averaged roughly 5% annually before inflation.
- 60/40 Portfolio: A classic mix of 60% stocks and 40% bonds has historically returned about 7-8% before inflation.
When to Worry About Underperformance
Short-term underperformance (1-3 years) is normal and expected. Even the best fund managers underperform for stretches. However, if your portfolio consistently lags its benchmark by more than 1-2% annually over 5+ years after fees, it may be time to reevaluate your strategy or fund choices.