The plain answer
An ETF, or exchange-traded fund, is a fund whose units are listed on the exchange and trade like shares: you buy and sell during market hours at live prices, and the units sit in your demat account. Because ETFs are exchange securities, the demat account is required for them, unlike folio-based mutual funds. They combine fund diversification with share-like trading, and their costs are the brokerage and DP charges of shares plus a low expense ratio.
The three numbers that define an ETF are the exchange price you trade at, the expense ratio deducted inside the fund, and the brokerage plus DP charge of a share trade. The one structure to remember: ETF units are securities, so everything about them settles like shares, while folio-based funds settle like funds. That single difference explains every practical question on this page.
The design answers two needs at once. The fund structure gives diversification: one order buys a slice of an entire index. The exchange listing gives speed: the same order executes at a live price, visible before you send it, and the position is sellable the next second the market is open. An investor who wants both properties gets both bills: the expense ratio of a fund and the transaction charges of a share.
How an ETF works
An ETF holds a basket of securities that mirrors an index or strategy, and the fund issues units against that basket. Authorised participants, usually large institutions, create new units by depositing the basket and redeem them by taking it back. That creation and redemption mechanism is what keeps the market price close to the basket value, because any gap lets an authorised participant profit by converting one into the other.
For the investor the mechanics are exactly a share: an order on the exchange during market hours, a trade at the prevailing price, and a settlement into the demat account on T+1. Through the session you can watch the intraday indicative NAV, the iNAV, updating as the basket moves, and your order executes at the market price, not at the day-end NAV.
The result of the design is fund diversification with share plumbing. One unit of a Nifty 50 ETF is a fraction of 50 companies, tradeable any second of the session, which is the combination index funds deliberately do not offer. The price you pay for that tradeability is the brokerage and DP layer, which index fund investors do not see.
The creation mechanism is institutional scale: authorised participants create and redeem in large creation units, worth crores for the major index ETFs, and their arbitrage between the basket and the listed units is what holds the two prices together. Retail orders never touch the mechanism directly; they simply enjoy its output, which is a market price that stays honest against the NAV without anyone promising it will.
The statutory layer rides along silently: STT, stamp duty on the buy, exchange transaction charges and SEBI fees apply to ETF trades exactly as they do to share trades, passed through on the contract note. The charge tables on this site separate the broker layer from the statutory layer, and the contract note shows both, which is the document to read when a deduction surprises you.
The ETF families
| Family | What it holds | The retail read |
|---|---|---|
| Equity index ETFs | Nifty 50, Nifty Next 50, Sensex baskets | The plain index exposure most people mean when they say ETF |
| Gold ETFs | Physical gold held by the fund | Tracks the rupee gold price; units are typically benchmarked to the price of a gram of gold |
| Debt ETFs | G-Sec and corporate bond baskets | Tradeable bond exposure with a defined maturity or duration |
| International ETFs | Nasdaq 100 or S&P 500 trackers listed in India | US exposure in rupees; some trade at premiums to their NAV |
All four families settle into the same demat account under their own ISINs, and the differences between them show up in liquidity and in the premium or discount to NAV, not in the holding mechanics. The demat account, the consolidated account statement and the DP charge behave identically for every family, which is the point of the structure: one custody system for every listed security.
Where the families differ is the market, not the account. The large Nifty trackers quote tight spreads and deep order books; smaller or newer ETFs can quote wider spreads, and gold and international ETFs can trade at premiums or discounts to the NAV that persist for months. The liquidity section below works through the premium question in detail, because it is the one number an ETF table cannot show you in advance.
Behind the families sits the index maintenance question: the index provider rebalances its constituents on schedule, and the fund follows, so the ETF inherits the index methodology wholesale. The investor does not vote on constituents or timing; the fund mirrors what the index says. That is the trade against picking stocks: consistency of process in exchange for no discretion at all.
Why the demat account is required
The demat requirement follows from the listing. Folio-based mutual funds record units with the AMC registrar; ETF units are securities on the exchange, so they settle through the clearing corporation into the depository, exactly like shares. The monthly CAS lists them beside your stocks, and selling them carries the same DP charge as any demat debit. This is the cleanest example on this site of the rule that the demat account is for securities, while the folio is for fund records.
The consequence list is short but total. You need the demat account before your first ETF order. The units appear in the CAS with your shares. Every sale carries the DP charge of a demat debit. And because the units are transferable securities, pledging them for margin and moving them between accounts follows the share rules, not the folio rules. If any part of that sounds like shares rather than funds, that is the design working as intended.
The prerequisite ordering is worth stating plainly: the demat account must exist before the first ETF order, because there is no fallback destination for the units. An investor who opens a trading account only, or who holds only folio-based funds, sees the ETF order fail at the settlement step. The account-opening pages on this site cover the demat setup, and the sequence that works is demat first, ETF order second.
ETF vs index fund
| Aspect | ETF | Index fund |
|---|---|---|
| Purchase | Exchange order, market price, market hours | NAV order, once a day |
| Where units sit | Demat account | Folio with the AMC |
| SIP | Not standard; periodic orders instead | Standard, from ₹100 |
| Costs | Brokerage + DP charge + low expense ratio | Usually no transaction cost, slightly higher expense ratio |
The table bottom line: index funds optimise for automation, ETFs for exchange liquidity. An index fund order executes at the next day-end NAV; an ETF order executes at a live price the moment it matches. Neither design is better in general; each is better at one job, and the job you are solving decides the choice.
Switching between the two is asymmetric in cost. Selling ETF units to buy an index fund costs the sell brokerage, the DP charge and the spread, and the index fund purchase costs nothing at transaction level, so the switch costs money but no tax friction beyond the capital-gains event on the ETF sale. The reverse direction, folio to demat, is not a transfer at all: it is a sale and a purchase with settlement into the demat. The structures are parallel, not interchangeable.
What an ETF costs
- Brokerage: ₹20 or 0.1% per order at Upstox, whichever is lower, on both buy and sell.
- DP charge: ₹20 + GST per scrip per day on the sell, as with any demat debit.
- Expense ratio: deducted inside the fund, lower than most index funds but nonzero.
The expense ratio deserves one precision: it is not billed, it is deducted inside the fund every day, so the NAV you see already reflects it. A 0.05% expense ratio on a ₹1,00,000 holding costs about ₹50 a year, invisibly. Brokerage and DP charges are the visible layer, and they behave exactly as they do for shares.
The comparison against an index fund on the same money: ₹1,00,000 in a Nifty index fund at a 0.15% expense ratio costs about ₹150 a year inside the fund; the same holding in a Nifty ETF at 0.05% costs about ₹50 a year, plus the transaction charges on whatever trades you make. On a single buy, the ETF total is ₹50 plus about ₹20, still below the fund year cost; on frequent trading, the transaction layer compounds and the arithmetic flips. Frequency, not preference, decides which structure is cheaper.
A worked example
You buy 100 units of a Nifty ETF at ₹250, a ₹25,000 order. Brokerage on the buy is ₹20 or 0.1%, whichever is lower: 0.1% is ₹25, so ₹20 applies. The order settles T+1 and the units land in the demat account, listed in the CAS under the ETF ISIN.
Nine months later the price is ₹275 and you sell. Sell-side brokerage is again ₹20, since 0.1% would be ₹27.50. The DP charge is ₹20 plus 18% GST, so ₹23.60. Total transaction costs on the round trip: ₹63.60, which is about 0.23% of the final sale value of ₹27,500. The expense ratio was deducted daily inside the fund the whole time, outside this arithmetic.
The sale is a capital-gains event under the listed-security schedule, the same arithmetic as selling shares, which the capital gains page works through. The example stays silent on whether the sale was a good idea; the cost mechanics are what this page covers.
The same ₹25,000 in a Nifty index fund instead: no brokerage, no DP charge, an order that executes at the next day-end NAV, and a slightly higher expense ratio inside the fund. The two routes cost within a few hundred rupees of each other on a single buy, and the decision that matters more is behavioural: whether you want the order to wait for NAV or execute at a live price. The cost tables on this page answer the rupee question; the plumbing question is yours.
The statutory layer adds its small published slice on top of these numbers, itemised on the contract note as STT, stamp duty, exchange charges and SEBI fees. On a ₹25,000 order the statutory slice is a few tens of rupees, and the contract note is where each component is visible, which is the document to read when the total differs from the brokerage alone.
Buying and selling, step by step
- Search the ETF. Find it in the broker app by name or index, and read the iNAV beside the live price before ordering. The iNAV tells you what the basket is worth; the price tells you what the market asks.
- Place the order. Enter the quantity and choose a limit order at a price you accept, or a market order to take the prevailing price. The order matches during market hours like any share order.
- Settlement. T+1, like shares: the units credit the next working day, and the CAS reflects them.
- Selling is the mirror. Order, T+1 debit, DP charge of ₹20 + GST per scrip per day on the sell, and proceeds to the trading account.
Because ETF buys are whole-unit exchange orders, there is no standard SIP. Regular investing means placing periodic orders yourself, which is why first-time investors usually meet ETFs after index funds. The mechanics are simple; the discipline of a periodic order is the manual part.
Order type matters more on ETFs than people expect. A market order takes the best available price, which in a wide spread can mean paying visibly more than the iNAV; a limit order sets your ceiling and fills only when the market meets it, with the risk that it does not fill at all. Neither is wrong in general; in a thinly traded ETF, the limit order is the difference between a known price and a surprise.
Prices also move through the session in step with the underlying index, so the order you place at 10 am and the order you place at 2 pm are bids into different markets. The iNAV moving beside the quote is the live explanation of the difference, and the spread is the transaction cost between you and the market. Reading both before the order is the entire live-price discipline in two numbers.
ETF vs buying the stocks directly
The same index can be owned two ways: one ETF order, or a stack of individual stock orders. The ETF route costs one brokerage and, on the sell, one DP charge per scrip; the direct route costs one charge per stock, plus the work of keeping the weights. The trade-off is control: the ETF locks in the index as the fund defines it, while direct buying lets you skip a stock or weight it differently, at the price of managing that divergence yourself.
The demat account holds both identically, which is the point: the choice between an ETF and its underlying stocks is a portfolio question, not an account question. The mechanics this page describes run the same way for both, from the T+1 settlement to the DP charge on the sell.
What people usually get wrong
ETFs are free like other mutual funds
They trade like shares, so brokerage and DP charges apply. The fund commission may be zero, but the trade is not.
I can start an ETF SIP
The standard SIP route is folio-based. ETF investing means periodic exchange orders, which is manual by nature.
The ETF price equals the NAV exactly
Market makers keep the price close, but the exchange price is a market price and can deviate slightly from the basket value.
The iNAV is the price I will pay
The iNAV is an indicative value for reference. Your order executes at the prevailing market price, which can differ from the iNAV by the spread and by market movement.
Questions people ask
Yes. ETF units are listed securities, bought and sold on the exchange like shares, and they credit to your demat account. This is the one mutual-fund-family product where the demat account is genuinely required, because the units settle through the clearing corporation into the depository.
Three costs: brokerage on the buy and sell (₹20 or 0.1% per order at Upstox), the DP charge of ₹20 plus GST when you sell, and the fund expense ratio, which is lower than most index funds. There is no separate commission beyond the brokerage, and the expense ratio is deducted inside the fund, not billed to you.
They track the same kind of index, but the plumbing differs. An index fund is bought at end-of-day NAV through a folio; an ETF trades on the exchange all day at market prices and sits in the demat account. The holdings are similar; the mechanics are not.
Not through the standard mutual fund SIP route, because ETF buys are exchange orders and need whole units. Regular investing in ETFs means placing periodic orders yourself, which is why first-time investors usually meet ETFs through index funds first.
Equity index ETFs, gold ETFs, debt ETFs and international ETFs all sit in the same demat account under their own ISINs. The demat account does not distinguish by asset class, and the consolidated account statement lists them beside your shares and bonds.
The exchange price is a market price set by orders, while the NAV is the value of the basket. Authorised participants who create and redeem units pull the price back toward the NAV, but intraday gaps of a few paise to a fraction of a percent are normal, and in stressed markets they can widen.