Investment
ETF vs Mutual Fund
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Cheaper on paper, traded like a share, and dependent on someone being willing to take the other side of your order.
The Same Exposure, Bought Two Different Ways
An exchange traded fund is a mutual fund scheme whose units are listed and traded on the exchange. You buy it from another investor through a broker, at whatever price the market is quoting at that moment.
A conventional mutual fund is bought from the fund house. Your order is executed at the day’s NAV, calculated after the market closes, and units are created for you.
For an index product the underlying exposure can be identical. What differs is the plumbing, and the plumbing has costs that the expense ratio does not capture.
Why the Cheaper Expense Ratio Is Not the Whole Cost
Indian index ETFs often charge 0.05 to 0.20%, against 0.2 to 0.6% for index funds. On the face of it the ETF wins comfortably.
Three costs sit outside that number. The bid-ask spread, which on thinly traded ETFs can be several tenths of a per cent on every trade. Brokerage and exchange charges on each order. And the premium or discount to intrinsic NAV at which the unit actually trades, which on illiquid Indian ETFs has at times been material.
Pay a quarter of a per cent in spread and brokerage every month on a SIP and you have handed back the expense ratio advantage several times over. The calculator above lets you set that drag and see which side actually wins.
Key Differences
| Factor | ETF | Mutual Fund |
|---|---|---|
| How you transact | On the exchange, through a broker, at market price | With the fund house, at end-of-day NAV |
| Demat account | Required | Not required |
| Expense ratio | Lower, often 0.05 to 0.20% for index ETFs | 0.2 to 0.6% index, 1.5% and above for active regular plans |
| Other costs | Spread, brokerage, premium or discount to NAV | Exit load where applicable |
| Intraday dealing | Yes | No |
| SIP | Awkward — whole units, manual or broker-dependent | Native, automated, any rupee amount |
| Fractional amounts | No, you buy whole units | Yes, any amount buys fractional units |
| Liquidity risk | Real on thinly traded ETFs | None at scheme level; the AMC creates and redeems units |
| Taxation | Identical for equity-oriented schemes | |
Liquidity Is the Risk Most Investors Underrate
A mutual fund always transacts at NAV, because the fund house creates and cancels units on demand. There is no counterparty to find.
An ETF needs a buyer. Large index ETFs on the Nifty 50 trade heavily and behave well. Narrow sector, thematic and international ETFs frequently do not, and in a stressed market the spread widens exactly when you want to sell.
Before buying an ETF, look at its average daily traded volume and the current spread, not just the expense ratio. If it trades a few thousand units a day, treat the low expense ratio as an advertisement rather than a benefit.
When Each Makes Sense
Choose the ETF
- You are deploying lumpsums rather than a monthly SIP
- The ETF is a large, heavily traded index product with a tight spread
- You already have a demat account and low or zero brokerage
- You want intraday execution or to place limit orders
Choose the mutual fund
- You invest monthly through a SIP and want it automated
- You want any rupee amount invested in full, with no leftover cash
- You do not want to hold a demat account or watch spreads
- The exposure you want has no liquid ETF
An index fund of funds that itself invests in an ETF is a third route: it gives NAV-based dealing and SIP convenience, at the cost of a second layer of expense.
Tracking Difference Beats Tracking Error as a Test
Tracking error measures how much a fund’s returns wobble around the index. Tracking difference measures how far behind the index the fund actually ended. For a passive investor the second is what you keep.
Compare the fund or ETF’s trailing return against the total return version of the index over three and five years. The shortfall is the real all-in cost of ownership, and it captures expense ratio, cash drag and rebalancing slippage in a single number that no factsheet headline can dress up.
How to Decide
Start with how you invest. If you invest monthly, the mutual fund is almost always the practical answer, because ETFs make a genuine SIP awkward and the per-transaction costs recur every month.
If you deploy occasional lumpsums into a large liquid index, the ETF is a reasonable and cheaper vehicle. Check the spread on the day, then put the real drag into the calculator above and confirm the advantage survives it.
Frequently Asked Questions
Sources and Method
The calculator projects a monthly investment at the index return you enter, less each vehicle’s costs, on the annuity-due convention used by the site’s SIP calculator. The ETF column subtracts both its expense ratio and the trading drag you specify; the index fund column subtracts its expense ratio only. Tax is excluded on both sides since it is identical for equity-oriented schemes.
- Scheme categorisation and expense ratio limits — SEBI (Mutual Funds) Regulations.
- Capital gains on equity-oriented schemes — Income Tax Act, sections 111A and 112A.
Last reviewed 22 August 2026. Spreads and expense ratios vary by product and by day; check the current figures before investing. General information, not investment advice.