Follow an index. Understand the exposure.
PRODUCT GUIDES · INVEST · 3 MIN READ
An index is a set of rules for choosing investments. Following those rules can simplify a strategy; it does not make every index broad, cheap or suitable for every goal.
How it works
Index mutual funds and exchange-traded funds can provide exposure to a benchmark. An ETF trades on an exchange, so its traded price and the way you place an order matter alongside the investments it holds. Read the specific scheme rather than assuming all products with “index” in the name work alike.
Start by describing the exposure in ordinary words: large companies, a particular industry, a bond portfolio or another defined market. If that description does not fit the purpose of your money, a low expense figure will not solve the mismatch.
Six things to compare
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Benchmark first
What does the index include and exclude? Check how concentrated it is and how its constituent weights are decided.
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Tracking the benchmark
Read tracking difference and tracking-error information. Ask how closely the fund has followed its stated benchmark, after relevant costs.
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Mutual fund route
Check the scheme’s dealing process, contribution options, valuation and redemption terms. Match the process to your intended investing routine.
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ETF route
Check exchange trading, bid–ask spread, broker and demat arrangements. A displayed price is not a promise about your execution price.
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Total ownership costs
Put fund expenses beside brokerage, account costs and other applicable charges. Compare the full route, not one isolated number.
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Exit under pressure
Ask how you would sell during a difficult market and what price uncertainty you could face when cash is needed.
Compare the route as well as the fund
Imagine two products refer to the same index. Before declaring one cheaper, create a two-column sheet: recurring fund expenses, account charges, buying costs, selling costs and the work of placing transactions. Add a note about order execution and access to cash. This exercise is a comparison method, not a recommendation for either route.
Index fund or ETF: compare the ownership route
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Buying
Index mutual fund: scheme dealing process. ETF: exchange order execution.
Ask: Check the applicable valuation process versus the actual bid–ask spread.
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Ongoing costs
Both have fund expenses; the ETF route can also involve account and trading costs.
Ask: Use the costs for your actual transaction size and frequency.
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Exposure
Both can follow a narrow or broad index.
Ask: Read the benchmark construction before using “passive” as shorthand for diversification.
A decision to work through
For a small recurring purchase, an apparently tiny brokerage charge may matter more than it would for one large purchase. For a larger purchase, execution price can matter. Compare the total rupee costs of your own route; do not rank products from an expense ratio alone.
Keep a comparison record
Write the purpose, amount, time horizon and access date at the top. For each option, record the source document and date, costs in rupees where possible, what could go wrong and what remains uncertain. Compare on the same basis: a different payout, risk or restriction can explain an attractive headline.
Test the numbers in a planning calculator →
Before your next step
Write the benchmark’s purpose and your own purpose on separate lines. Then compare two available routes using the same investment amount and expected holding period. Leave a blank where a cost or dealing term is unclear, and resolve it before deciding.
Questions worth clearing up
Does passive mean safe?
No. Following an index still exposes you to changes in the assets and the concentration of that index.
Are all ETFs equity investments?
No. Read the underlying exposure and scheme documents; the exchange-traded format alone does not tell you what the fund owns.
Explore the numbers. Keep the limits in view.
Explore a regular-contribution scenario ↗
Read the related full money guide ↗
Continue exploring
Sources and scope
SEBI: investor reading material ↗
Prepared by SiP Money. Source check: 18 October 2026. Introductory financial education for India; no individual product recommendation, provider ranking or professional review is claimed. Read current scheme or policy documents, fees, eligibility and tax rules before acting. Calculator outputs are illustrative.
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