Creation Unit
The large block of ETF units in which new units are created or existing ones redeemed with the fund.
Formula
Test: units are created or redeemed only in multiples of the specified block size, in exchange for the underlying basket or cash
Unit
shares
In depth
Creation units are the mechanism that keeps an ETF's market price close to the value of its holdings: when the price rises above that value, an authorised participant creates new units and sells them, and the reverse when it falls below. This arbitrage only works if it is profitable, which requires a liquid underlying basket and an active participant — which is why some Indian ETFs trade at persistent premiums or discounts. Retail investors never deal in creation units; they buy existing units on the exchange from other investors. The block size is large, commonly tens of thousands of units, precisely so that only institutions use the mechanism.
Worked example
With a creation unit of 50,000 units at a NAV of ₹245, one block is worth ₹1.23 crore. A retail buyer of 200 units transacts entirely on the exchange and never touches the creation mechanism.
Illustrative figures, chosen so the arithmetic is easy to follow. Not a live price and not a valuation of any company.
Educational reference only
This entry explains what “Creation Unit” means. It is not investment advice and not a recommendation to buy or sell any security. Any numbers above are illustrative, not live prices, and nothing here predicts price direction or rates a stock. Consider your own circumstances and consult a SEBI-registered investment adviser before acting.