Compound Annual Growth Rate Cagr
Compound Annual Growth Rate (CAGR) is a financial metric that measures the mean annual growth rate of an investment or business metric over a specified period of time, assuming profits are reinvested at the end of each year. Unlike simple year-over-year growth rates, CAGR smooths out the effects of volatility and fluctuations in returns to provide a single, standardized growth figure. This makes it particularly useful for comparing performance across different time periods or investments with varying levels of annual volatility.
Calculation
CAGR is calculated by dividing the ending value of an investment by its beginning value, raising the result to the inverse of the number of years, and then subtracting one. The formula is expressed as . This mathematical approach effectively ignores the path taken between the start and end points, focusing solely on the geometric mean of the growth rates.
Applications and Limitations
In business strategy, CAGR is commonly used to evaluate the historical performance of stocks, mutual funds, and business revenue streams. It allows stakeholders to compare the growth of different assets on an equal footing, regardless of their individual risk profiles or market conditions during specific years. However, because it assumes a constant growth rate, it does not reflect the actual variability or risk involved in the investment. Consequently, it should be used alongside other metrics that account for volatility, such as standard deviation or maximum drawdown, to provide a comprehensive view of financial health.
Source Notes
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