1. Absolute return vs. CAGR
Absolute return is the simple percentage gain: (current value − invested amount) ÷ invested amount × 100. It ignores how long you held the investment.
CAGR (Compound Annual Growth Rate) is the annualised return that accounts for time. It's the rate at which your investment would have grown if it grew at a steady rate every year.
💡 A 100% absolute return over 10 years is only 7.18% CAGR. Over 5 years, the same 100% absolute return is 14.87% CAGR — double the annualised return. Always compare CAGR.
2. The CAGR formula
CAGR = (Current Value ÷ Invested Amount)(1 ÷ Years) − 1
For SIP investments, the formula is more complex because each instalment is invested for a different duration. This calculator uses the XIRR method internally to compute the annualised return for SIPs.
3. Why SIP returns differ from lumpsum returns
When you invest via SIP, each monthly instalment has a different holding period. The annualised return (XIRR) reflects the weighted average of all those periods.
| Scenario | Absolute return | Annualised return |
|---|---|---|
| Lumpsum ₹5L → ₹8L in 3 years | 60% | 16.96% |
| SIP ₹10k/month → ₹4.5L in 3 years | 25% | ~15.5% (XIRR) |
Notice how SIP shows a lower absolute return but a comparable annualised return. This is because SIP money is invested gradually, not all at the start.
4. Benchmarking your fund
A fund's return means nothing in isolation. Compare it to:
- Its benchmark index: e.g., Nifty 50 for large-cap funds, Nifty Midcap 150 for mid-cap funds.
- Category average: How does your fund perform against similar funds?
- Risk-adjusted metrics: Sharpe ratio, Sortino ratio, and standard deviation.
A fund that returns 14% when the benchmark returns 15% has negative alpha. A fund that returns 13% when the benchmark returns 10% has +3% alpha — it's adding value.
5. A worked example
Suppose you invested ₹5,00,000 lumpsum 3 years ago. Today it's worth ₹8,00,000.
- Absolute return: (8,00,000 − 5,00,000) ÷ 5,00,000 = 60%
- CAGR: (8,00,000 ÷ 5,00,000)(1/3) − 1 = 16.96%
- If the benchmark CAGR was 12%, your alpha is +4.96%
- Estimated tax (equity, LTCG): 10% on (₹3L − ₹1L exempt) = ₹20,000
- Post-tax value: ₹7,80,000
Post-tax CAGR would be approximately 16.0% — still well above the benchmark.
✓ This fund is outperforming its benchmark by nearly 5% per year. Over 10 years, that alpha compounds to a massive difference in final corpus.
6. Reading fund fact sheets
When you look at a fund's published returns, note:
- Point-to-point returns: The CAGR between two specific dates — sensitive to start and end dates.
- Rolling returns: The average CAGR across many start/end date combinations — more reliable.
- Since inception: The CAGR since the fund launched — useful for long-term track records.
- Direct vs. regular plan: Direct plans have lower expense ratios and thus higher returns — always compare direct to direct.
7. Common mistakes to avoid
- Comparing absolute returns across different periods. Always use CAGR for periods over 1 year.
- Chasing last year's top performer. Returns often mean-revert. Look for consistency.
- Ignoring the expense ratio. A 1% higher expense ratio compounds against you.
- Not adjusting for taxes. Post-tax returns are what you actually get.
- Ignoring risk. A high return with high volatility may not suit your profile.
- Redeeming too early. Equity funds need 5+ years to show their true potential.
8. Final thoughts
Mutual fund returns are best evaluated on an annualised, post-tax, risk-adjusted basis. Absolute returns can be misleading, and a fund's performance is meaningless without a benchmark.
Use this calculator to see your actual CAGR and how it compares to a benchmark. Then look beyond returns — check the expense ratio, fund manager track record, and consistency over market cycles.
