An exchange traded fund (ETF) can trade above or below the value of the assets it holds; if an ETF has an asset value (NAV) of ₹100 per unit and trades at ₹102 it trades at a 2% premium and if it trades at ₹98 it trades at a 2% discount.
The ETF. Discount to NAV matters because the gap is a cost that the investor pays when entering or leaving. Buying at a 2% premium means paying ₹102 for ₹100 of assets. If the premium narrows later that ₹2 is lost even when the underlying index has not moved.
NAV, iNAV and market price
| Measure | What it shows | When it updates |
|---|---|---|
| NAV | The value of the funds holdings per unit | a day after the market closes |
| iNAV (indicative NAV) | An estimate of that value during trading hours | Frequently during market hours |
| Market price | The price at which units are bought and sold on the exchange | With every trade |
| Bid-ask spread | The gap between the buy quote and the best sell quote which is the cost of trading immediately | Continuously |
In a functioning ETF all three sit close together. I think the ETF premium or discount is the difference between the market price and the NAV or iNAV.
Why ETF prices stay close to NAV
Large participants called participants or market makers keep two-way quotes on the exchange and can create or redeem ETF units in large blocks called creation units. If the market price rises above NAV, a market maker can create units at NAV and sell them at the higher market price and the extra supply pushes the price back toward NAV. If the market price falls below NAV the market maker buys units cheaply. Redeems them against the underlying assets and the extra demand lifts the price back toward NAV.
Why a premium or discount persists
| Cause | Premium or discount | What happens |
|---|---|---|
| Unit creation is blocked | Premium | No new supply can enter so extra demand pushes the price up until limits change. This has occurred with ETFs that invest overseas. |
| Stale NAV from time zones | Either | The overseas market is closed during hours so the NAV and iNAV rely on older prices while the market price reflects current views. |
| Thin trading | Either | With buyers and sellers the spread widens and a single trade can move the last traded price far from NAV. |
| Illiquid underlying holdings in stress | Often discount | Prices of the underlying bonds are hard to obtain so arbitrage slows down. |
A premium caused by blocked creation is backed by scarcity and not by assets so it can shrink quickly once creation restarts. That is the reason a high premium is a risk for the buyer.
How to check the premium or discount before buying
| Step | What to check | Why it matters |
|---|---|---|
| 1 | I think you should compare the ETF market price with the iNAV and the latest NAV | It shows how far the ETF price is from the value of the holdings. |
| 2 | Look at the bid-ask spread | The bid-ask spread is a cost on every trade and a wide spread signals trading. |
| 3 | Check ETF trading volume and impact cost | Higher liquidity usually means impact cost and a smaller spread. |
| 4 | For overseas ETFs check what happened in the overseas market overnight | A large overnight move can make the morning iNAV misleading. |
| 5 | Use limit orders than market orders | A limit order caps the price paid and avoids filling at a spread. |
What investors should take from this
I think the ETF premium and discount to NAV is a cost that does not appear in the expense ratio. A small gap on an ETF is normal while a persistent or large premium calls for a look at why creation or liquidity is constrained.
Kuvera offers mutual funds, which are priced at NAV and that makes the comparison with an ETF market price straightforward for similar exposure.
Frequently Asked Questions
1. What does it mean when an ETF trades at a premium to NAV?
It means the market price is higher than the value of the assets the ETF holds. A buyer at that price is paying more than the underlying holdings are worth.
2. Why do ETFs trade at a discount?
ETFs trade at a discount when selling pressure exceeds demand, when trading is thin, or when the underlying holdings are illiquid and hard to price. The market price falls below the NAV.
3. What is iNAV?
iNAV stands for indicative NAV. iNAV is an estimate of the per-unit value of a funds holdings. iNAV updates while market hours are in session.
4. Can an ETF premium disappear?
Yes the premium can disappear. When unit creation resumes or demand falls the ETF premium can narrow fast. A buyer who bought at the premium will lose money.
5. How is the premium or discount calculated?
The premium or discount equals the market price minus the NAV divided by the NAV. For example if the market price is ₹102 and the NAV is ₹100 the premium is 2%.
