How SIPs Help With Rupee Cost Averaging
Rupee cost averaging means that investing a fixed amount at regular intervals automatically buys more fund units when prices are low and fewer units when prices are high — which lowers your average cost per unit over time compared to investing the same total amount in one lump sum at a random moment.
A simple illustration
Say you invest ₹5,000 every month into a fund, and its unit price (NAV) moves as below. This is an illustrative example only, not a real fund's performance.
| Month | NAV (₹) | Units Bought |
|---|---|---|
| 1 | 50 | 100.0 |
| 2 | 40 | 125.0 |
| 3 | 45 | 111.1 |
| 4 | 55 | 90.9 |
Total invested: ₹20,000 for 427 units — an average cost of about ₹46.8 per unit, which is lower than the simple average of the four NAVs (₹47.5), because more units were bought at the lower prices in months 2 and 3.
Why it matters
Markets move up and down, and predicting the "right" time to invest a lump sum is difficult even for professionals. A SIP removes that decision entirely — you invest the same amount on the same date regardless of what the market did that month, which smooths out the effect of short-term volatility on your entry price.
It's worth being clear about what averaging doesn't do: it doesn't guarantee a profit or protect against a fund's value falling over the full period you're invested. Mutual Fund investments are subject to market risks; read all scheme related documents carefully.