What Is an ETF?

An ETF is created and managed by a fund provider that holds a portfolio of underlying assets. Many ETFs aim to track an index, meaning they try to replicate the performance of a defined list of securities rather than beat it. Because ETF units trade on an exchange, their prices move throughout the trading day and you buy or sell them through a brokerage account, the same way you would trade a stock. The market price of an ETF generally stays close to the value of its underlying holdings, though small gaps can appear, especially in volatile markets or for funds holding less liquid assets. Key terms used here are defined in the Glossary at /glossary.

ETFs cover a wide range of asset classes and strategies. Broad equity index funds track large baskets of stocks across a market or region. Bond ETFs hold government or corporate debt. Sector and thematic funds concentrate on a specific industry or trend, which increases both focus and concentration risk. Some products use leverage or derivatives to amplify or invert daily returns; these behave very differently from plain index funds and are generally designed for short holding periods. Reading a fund's factsheet and prospectus is the only reliable way to know what it actually holds and how it is built.

Before buying an ETF, careful investors verify several things directly from the provider's documents: what index or strategy the fund follows, its ongoing costs, how closely it has tracked its benchmark, its size and trading volume, and how income such as dividends is handled. You should also confirm what your broker charges to trade the fund and whether the specific fund is available in your account type and country, since availability varies. Check these details in the broker's current fee schedule and the fund's official documents rather than third-party summaries. The Find my broker workflow at /find-my-broker can help you organise those verification steps, and the Education hub at /education covers related topics such as expense ratios.