RiskKit field guide / Performance

CAGR vs total return: which number should you use?

Total return tells you the complete gain or loss. CAGR translates that outcome into a constant annualized rate. You usually need both—and both should include the fees and cash income relevant to the comparison.

The short version

If $10,000 becomes $15,000 after five years, total return is 50%, while CAGR is about 8.45% per year. The investment did not necessarily earn 8.45% every year; CAGR is the single smooth annual rate connecting the two values.

Two formulas, two questions

Total return = (ending value − initial value) ÷ initial value. It answers how much the investment changed over the whole holding period. It cannot by itself tell you whether the result took one year or ten.

CAGR = (ending value ÷ initial value)1 ÷ years − 1. It answers which constant compounded annual rate would turn the initial value into the ending value over that exact period. Use the Investment Return & CAGR Calculator to calculate both from dates and prices.

A worked return example with fees and income

Suppose you pay $10,000, with a 0.25% purchase fee included in that cash. The remaining $9,975 buys units at $100 each, giving 99.75 units. Five years later the asset price is $145. A 0.25% sale fee is deducted, and you received $400 in cash distributions.

Net calculation

Gross asset value: $14,463.75 · Sale fee: $36.16 · Income: $400 · Ending value: $14,827.59 · Total return: 48.28% · Approximate CAGR: 8.20%.

Ignoring the purchase fee, sale fee or income changes the comparison. Decide whether your question is about price return, total investment return before tax, or the cash you actually kept. Label the result accordingly.

What CAGR hides

CAGR is useful for comparing periods of different length, but it removes the path. A steady investment and a volatile investment can have the same start value, end value and CAGR. One may have suffered a severe drawdown that the other did not.

  • It does not show annual volatility or maximum drawdown.
  • It does not reveal whether most gains arrived in one short period.
  • It can be distorted if intermediate contributions or withdrawals are treated as investment performance.
  • It is not defined as a finite real growth rate when ending value is zero.

The smooth chart in the RiskKit calculator is therefore labeled “CAGR-equivalent progression.” It is not reconstructed market history.

Regular contributions need a different view

Simple CAGR assumes one beginning value and one ending value. If you add $500 every month, later contributions have less time to grow. Treating all contributed cash as if it were invested on day one produces a misleading rate.

Use the DCA Calculator to model regular contributions and a chosen return assumption. For a portfolio with irregular deposits and withdrawals, a money-weighted return calculation such as XIRR is more appropriate than the simple two-point CAGR used here.

Use a consistent comparison

When comparing two assets, use the same fee treatment, date convention, currency and income treatment. A USD result and a THB result are not comparable without an exchange-rate calculation. The calculator's currency selector changes formatting only; it never performs foreign-exchange conversion.

For a decision about purchasing power, take the ending value to the US Inflation Calculator or compare nominal and real scenarios in the DCA tool. For a decision about risk, add drawdown and volatility information rather than ranking investments on CAGR alone.

A four-step performance check

  1. Calculate the net ending value after transaction fees and cash income.
  2. Read total return for the complete gain or loss.
  3. Read CAGR to annualize that result over the exact dates.
  4. Check the path, drawdown, inflation and taxes separately before drawing a conclusion.