A measure of an investment’s annual growth rate over time

What is CAGR?

CAGR stands for the Compound Annual Growth Rate. It is the measure of an investment’s annual growth rate over time, with the effect of compounding taken into account. It is often used to measure and compare the past performance of investments or to project their expected future returns. The CAGR formula is equal to (Ending Value/Beginning Value) ^ (1/No. of Periods) – 1.


CAGR Formula

The Compound Annual Growth Rate formula requires only the ending value of the investment, the beginning value, and the number of compounding years to calculate. It is achieved by dividing the ending value by the beginning value and raising that figure to the inverse number of years before subtracting it by one.

The CAGR formula is as follows:

CAGR Formula


  • EV: Ending Value
  • BV: Beginning Value
  • N: Number of Compounding Periods

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Advantages of Using the CAGR

The Compound Annual Growth rate is a useful tool for comparing a variety of investments over a similar investment horizon. One of CAGR’s advantages over an average annualized rate of return is that it is not influenced by percentage changes within the investment horizon that may yield misleading results. This advantage can be illustrated by the following example:

CAGR - Advantage 1

CAGR - Advantage 2

The example shows that the investment gave a 25% return in the first year, raising the value from $1,000 to $1,250. If all capital were reinvested in the same investment vehicle for the second year, which yielded a –25% return, the value of the investment would fall to $937.50, which is less than the initial investment amount.

Although it is clearly shown that the investment generated losses over a two-year horizon, averaging returns indicates that there was no change in returns over the two years. In contrast, the CAGR shows that the investment generated negative returns over its full time horizon.

Disadvantage of CAGR: Smoothing and Risk

One disadvantage of the Compound Annual Growth Rate is that it assumes growth to be constant throughout the investment’s time horizon. This smoothing mechanism may yield results that differ from the actual situation with a highly volatile investment.

CAGR - Disadvantage

Building on the above example, the CAGR correctly shows the ending value of the investment if a –3% CAGR was applied over a two-year compounding period. However, the CAGR assumes that the investment falls at a constant 3%, when, in fact, it grew by 25% in the first year.

Compound Annual Growth Rate can be used as a quick comparison tool between investment options, but any decisions should be made with consideration of the trade-offs between risk and return.

Disadvantage: Investor Actions

Another disadvantage of the CAGR is that it does not account for the change in value caused by investor decisions to further fund or liquidate the asset. Consider the example shown in the table below:

CAGR - Disadvantage 2

CAGR - Disadvantage 3

As seen in this example, the source of value is important. In this case, the returns generated by the asset are zero, as the losses in the final year cancel out the gains in the first and second years. However, the value of the investment increased as a result of further injecting funds into the investment.

This, in turn, raised the value of the investment although the increase in value was not generated by performance. However, the compound annual growth rate does not account for non-performance-related factors in the change of value.

Other Resources

Thank you for reading CFI’s guide to CAGR. To keep learning and developing your knowledge base, please explore the additional relevant resources below:

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