An ETF (exchange-traded fund) is an investment fund whose units trade on a stock exchange just like shares. Most ETFs track an index, such as the Nifty 50 or Sensex, or an asset such as gold. With one purchase, you get exposure to many securities at a low cost.
What an ETF is
An ETF pools money from many investors and holds a basket of assets that mirrors its target. A Nifty 50 ETF, for example, holds the 50 Nifty companies in the same proportions as the index. Unlike a regular mutual fund, which you buy from the fund house at the day's net asset value (NAV), an ETF is bought and sold on the exchange during market hours at the current market price.
How it works in India
ETFs are offered by mutual fund houses and regulated by SEBI. You need a demat and trading account to buy them through a broker. Common types include equity index ETFs (Nifty 50, Sensex, Nifty Next 50, bank and sector indices), gold and silver ETFs, debt and bond ETFs, and ETFs tracking international indices. Market makers help keep ETF prices close to the value of the underlying holdings.
A simple example
You buy 50 units of a Nifty 50 ETF at ₹250 each, investing ₹12,500. You now indirectly own a small slice of all 50 Nifty companies. If the Nifty 50 rises 10% over the year, your ETF should rise by about 10%, minus small costs. You can sell the units on any trading day.
Why it matters for investors
ETFs offer low costs (expense ratios are usually much lower than actively managed funds), instant diversification, transparency (holdings mirror a known index) and flexibility (trade anytime during market hours).
Things to check before buying
Expense ratio: lower is generally better. Tracking error: how closely the ETF follows its index. Liquidity: trading volume and the gap between buy and sell prices; some ETFs trade thinly. Price versus NAV: an ETF can trade slightly above or below the value of its holdings. Choosing a liquid ETF from a reputable fund house helps.
ETF versus index mutual fund
Both can track the same index. An ETF trades on the exchange during the day and needs a demat account. An index mutual fund is bought from the fund house at the end-of-day NAV, needs no demat account and is convenient for monthly SIPs. Costs are often similar; the choice usually depends on convenience.
How ETFs fit in a portfolio
Many investors use a broad index ETF as the core of their equity holdings, adding gold or debt ETFs for balance. Because ETFs are transparent and cheap, they suit long-term, low-maintenance investing. Sector and thematic ETFs are more concentrated and riskier; they are better as small additions than as the foundation of a portfolio.
Common misconceptions
"ETFs can't lose money." They fall when their index or asset falls.
"All ETFs are equally liquid." Some trade very little, making buying and selling harder.
"An ETF always trades at exactly its value." Small premiums or discounts can occur.
Frequently asked questions
Do I need a demat account for ETFs?
Yes.
What is an expense ratio?
The yearly fee charged by the fund, as a percentage of assets.
What is a gold ETF?
An ETF whose value tracks the price of gold, held without physical storage.
Can I do an SIP in ETFs?
Many brokers allow regular purchases; index funds are another option.
How to use this on PositoAI
See the companies inside the Nifty 50 and Sensex on Senty, ranked by Positivity Score, calculated by a highly complex proprietary algorithm, and read our guide to indices.
Summary
An ETF is a fund that trades on an exchange like a share, usually tracking an index or asset such as gold. In India, you need a demat account to buy one. ETFs offer low costs, diversification and intraday trading, but check expense ratio, tracking error and liquidity. Index mutual funds are a convenient alternative for SIPs.