Understanding CAGR: The Gold Standard for Measuring Investment Growth
When evaluating the performance of an investment over time, many beginners make the mistake of looking at "absolute returns" or "simple average returns." However, in the world of finance, the most accurate way to measure how much your money has actually grown is through the Compound Annual Growth Rate, commonly known as CAGR.
What is CAGR?
CAGR is the measure of an investment’s annual growth rate over a specific period of time, assuming the profits were reinvested at the end of each year. Unlike a simple average, which can be skewed by a single year of massive gains, CAGR "smooths out" the returns. It tells you what your investment would have earned every year if it had grown at a steady, constant rate.
Why CAGR is Better Than Average Returns
To understand why CAGR matters, consider a volatile investment. If you invest ₹1,00,000 and it grows by 100% in the first year but drops by 50% in the second year, your "average" return is 25%. However, in reality, you are back to your original ₹1,00,000. Your actual growth is zero.
CAGR accounts for this volatility. It provides a single, geometric progression ratio that describes the rate at which an investment would have grown if it had grown at a steady rate from the beginning to the end.