Key idea
A total gain over several years can mislead. CAGR expresses growth as a steady yearly rate, so you can compare investments fairly.
If someone says an investment "returned 60%," you cannot judge it without knowing over how long. Sixty percent in one year is spectacular; over ten years it is modest. This is why investors use CAGR, the Compound Annual Growth Rate, which expresses growth as a single smoothed yearly figure.
Absolute vs CAGR
| Measure | Says | Useful for |
|---|---|---|
| Absolute | Total gain over the whole | A headline, but hides the |
| return | period | duration |
| The equivalent steady yearly | Comparing across different | |
| CAGR | ||
| rate | periods |
CAGR answers "if this had grown at the same rate every year, what would that rate be?" A ₹1 lakh investment that becomes ₹2 lakh over ten years has a 100% absolute return but a CAGR of about 7.2% a year. The CAGR is the honest, comparable number.
Why it protects you
Marketing loves big absolute numbers ("grew 200%!") because they hide the years it took. Always convert to a yearly rate before judging. A CAGR lets you compare a 3-year and a 10-year investment on equal terms, and to sanity- check any "amazing return" claim.
Finished reading?
Marking this complete counts today, and your streak becomes day 1.