What is an annualised return?
An annualised return is the average rate of return an investment generates per year over a specific period, taking into account the effects of compounding.
It converts the total return of an investment into a yearly percentage, making it easier to compare investments held over different time frames.
In simple terms, it answers the question: “What would the yearly return be if the investment grew at a steady rate?”
How annualised return works
Annualised return standardises investment performance into a yearly figure, even if the investment was held for months or several years.
This allows investors to:
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Compare different investments on the same basis
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Understand long-term performance more clearly
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Account for compounding effects over time
Unlike simple returns, annualised returns reflect how gains are reinvested and grow over time, providing a more realistic measure of performance.
How to calculate annualised return
The most common method for calculating annualised returns is using the compound annual growth rate (CAGR) formula:
Annualised return = (Ending value / Beginning value)^(1 ÷ n) − 1
Where:
This formula converts total growth into a consistent annual rate.
Example of annualised return
Suppose you invest $10,000, and it grows to $15,000 in 3 years.
Although the total gain looks high, the annualised return shows the true yearly growth rate, which is more useful for comparison.
Absolute return vs annualised return
Absolute return measures the total gain or loss over an investment period without considering time.
Annualised return, on the other hand, adjusts for time and shows the average yearly growth rate.
Key differences:
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Absolute return ignores investment duration
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Annualised return includes time and compounding
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Absolute return is more useful for short-term analysis
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Annualised return is better for long-term comparisons
In short, absolute return shows the total result, while annualised return shows the rate of growth per year.
Annualised return vs average return
Annualised return is often confused with average return, but they are not the same.
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Average return: Average return is a simple calculation that adds yearly returns and divides by the number of years.
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Annualised return: Annualised return uses compounding, making it more accurate.
Simple averages can overestimate performance because they ignore how gains and losses affect each other over time.
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