The Compound Annual Growth Rate (CAGR) is limited by its assumption of constant, smoothed growth, ignoring interim volatility, risk, and cash flows. It only considers the beginning and ending values, often masking poor intermediate performance. Additionally, it cannot predict future performance and is generally unsuitable for short-term analysis.
Limitations and considerations of CAGR
CAGR does not consider market fluctuations or market volatility while evaluating the performance of any stocks. This is a hurdle in getting the true picture of the performance of such stock and can mislead the investor in making any investment decision.
Limitations of CAGR
Limitations of CAGR
Ignores Short-Term Volatility: CAGR does not account for year-over-year volatility or risks, which can be important for certain types of investments. While it provides a long-term perspective, it may not capture short-term risks or dramatic shifts in performance.
Example of How to Use CAGR
From Jan. 1, 2022, to Jan. 1, 2023, your portfolio grew to $13,000 (or 30% in year one). On Jan. 1, 2024, the portfolio was $14,000 (or 7.69% from January 2023 to January 2024). On Jan. 1, 2025, the portfolio ended with $19,000 (or 35.71% from January 2024 to January 2025).
Common Misconceptions About CAGR
It hides volatility. A 15% CAGR stock may have wild yearly swings. CAGR = average growth – Wrong again. Arithmetic averages mislead; CAGR shows compounding impact.
The rule of 72 says that if you know the rate of return then it is easy to find out when the money will double by applying the rule of 72. For instance, if the return is 9%, then it takes 8 years (72/9) to double the money.
XIRR is more appropriate for investments with multiple cash flows occurring at different time intervals. While CAGR can be calculated manually, XIRR typically requires Excel or a financial calculator. Use CAGR if you invest once and hold. Use XIRR if you invest through SIPs or withdraw at different times.
Yes, CAGR can be used to forecast revenue by providing an average annual growth rate over a specified period. This helps in estimating future revenue based on past performance trends.
There is no universally "better" metric. It depends on your investment horizon. Absolute return is more suitable for short-term comparisons, while CAGR is the ideal measure for assessing long-term growth and consistency.
A negative CAGR indicates that the investment is shrinking rather than growing. The -4% CAGR shows an annualised loss of 4% over the 5-year period. A negative CAGR signifies poor performance, erosion of capital, or high risk. It suggests the investment strategy is flawed and unable to generate returns over time.
Warren Buffett famously stated, "My life has been a product of compound interest. Nothing more. Nothing less. And nothing brilliant," highlighting its immense power in wealth accumulation, often explaining it as a snowball rolling down a long hill that picks up more snow (money) over time, making early, consistent investing crucial for long-term growth. He emphasizes that understanding and leveraging compounding, rather than get-rich-quick schemes, is the true key to building significant wealth.
These limitations stem from its historical focus, the impact of accounting choices, the simplification of complex data through ratios, the inability to assess non-financial factors, and external factors that may affect a company's performance.
Wide Application: CAGR can be applied to various types of financial data, including revenues, profits, expenses, and other key performance indicators, making it a versatile tool in business and finance.
No, CAGR reflects past performance, not a guaranteed future return. It provides a reference point for evaluating a fund's consistency and potential but cannot predict market fluctuations.
The IRR is also a rate of return (RoR) metric, but it is more flexible than CAGR. While CAGR simply uses the beginning and ending values, IRR considers multiple cash flows and periods—reflecting the fact that cash inflows and outflows often constantly occur when it comes to investments.
For large-cap companies, a CAGR in sales of 5-12% is good. Similarly, for small companies, a CAGR between 15% to 30% is good. On the other hand, start-up companies have a CAGR ranging between 100% to 500%. Also, such high growth rates in the early stages are not completely abnormal.
CAGR provides accurate forecasts on the annualized rate of growth for investments or specific metrics. To get accurate results, it's better to use extended periods when calculating compound annual growth rates. Regardless of how steadily growth has been in the past, you cannot account for volatilities.
The "15-15 rule" primarily refers to treating low blood sugar (hypoglycemia) by consuming 15 grams of fast-acting carbohydrates, waiting 15 minutes, and then rechecking blood sugar; repeat if still low, then follow with a balanced snack. Less commonly, it can refer to an investment principle: investing ₹15,000 monthly in a mutual fund at a 15% return for 15 years to potentially become a crorepati (millionaire).
The table below shows the present value (PV) of $50,000 in 20 years for interest rates from 2% to 30%. As you will see, the future value of $50,000 over 20 years can range from $74,297.37 to $9,502,481.89.
CAGR doesn't tell you anything about an investment's risk. It's simply a measure of past performance. If you want to determine the risk-return reward of an investment, you can use other calculations, such as the Sharpe ratio and Treynor ratio, both of which account for risks that CAGR doesn't.