Dados B3 › Glossary
Glossary
Premium and discount
How far the ETF's exchange price is above (premium) or below (discount) the fund's unit value on the same day.
What it is
How far the ETF's exchange price is above (premium) or below (discount) the fund's unit value on the same day. Shown on the ETFs pages.
How Dados B3 calculates it
closing price ÷ same-day net asset value per unit − 1, only on a day when both exist. Beyond ±10% the figure carries an extreme mark.
Example
Illustrative example, with made-up numbers to keep the arithmetic easy: Close of R$ 101 and NAV per unit of R$ 100: 1% premium. Close of R$ 99 and NAV of R$ 100: 1% discount.
What to watch for when reading it
- The unit value becomes public a day later; that is why the page shows the delivery date.
- A large premium or discount usually points to a stale NAV or a thinly traded unit.
See also
Educational content to understand what each number means. It is not a recommendation to buy or sell.
Sources: CVM (open data, ODbL) and B3 (COTAHIST). Not affiliated with B3 or the CVM. Not investment advice.
Numbers on this page are live. Data version 2026-11-09-ancora-do-fre · page generated 2026-11-13 11:49 UTC. If this does not match /saude, you are reading a cached copy.