Equity · Core
Exchange-Traded Fund
An ETF is a listed fund that trades like a stock and (usually) creates/redeems in kind so the market price can hug NAV.
Definition
Authorized participants create and redeem shares against a basket (or cash). Secondary-market trading is just stock. The creation mechanism, not the ticker, is why a vanilla S&P ETF stays near NAV. Levered and illiquid-underlying ETFs are different animals.
Why it matters
Most ‘index’ exposure is now ETF plumbing. Premiums, discounts, and create/redeem capacity are the real tracking.
Case
March 2020 corporate-bond ETFs traded at discounts while the basket was stale. The ETF was the price; the NAV was a memory.
How to read it
Underlying liquidity, create/redeem (in-kind vs cash), and whether the product is a hold-to-term or a trading vehicle.
No query has been run yet. Which is tragically normal for most knowledge systems, but we are trying to evolve past decorative databases.