Finance glossary
ETF — Exchange-Traded Fund
Also known as: Exchange-Traded Fund
In simple terms
An ETF is a ready-made basket of investments — such as lots of different company shares — that you can buy and sell on the stock market in a single trade, just like buying one share.
On this page
What does ETF mean?
ETF stands for Exchange-Traded Fund. It is a fund that pools many underlying investments — often the shares in a whole market index, such as the FTSE 100 — into a single holding, so buying one ETF spreads your money across all of them at once.
Unlike a traditional fund that is priced once a day, an ETF is listed on a stock exchange and its price moves throughout the trading day, so you buy and sell it like an ordinary share.
How an ETF works
Most ETFs are “passive”: they simply track an index rather than trying to beat it, which usually keeps their annual charges low. You buy them through an investment platform or broker, and the price you pay tracks the value of the basket inside.
The ETF’s value rises and falls with the investments it holds, so it can go down as well as up. Some ETFs track more specialist or riskier areas, and a few use complex structures — always check what an ETF actually holds before buying.
How could this affect me?
ETFs are a popular, low-cost way to spread risk across a whole market in one step, which is why they are common in beginner and long-term portfolios. Lower charges mean more of any return stays with you.
You are still fully exposed to the market the ETF tracks — if that market falls, your ETF falls with it. Diversification within an ETF reduces the risk of any single company failing, but it does not remove overall market risk.
Things to watch out for
- An ETF can fall in value if the market it tracks falls — your capital is at risk.
- Check what the ETF actually holds; some track niche, volatile or leveraged areas.
- Trading charges and the gap between buy and sell prices (the “spread”) eat into returns.
- Past performance of an index is not a guide to future returns.
Know your rights
- A firm selling or holding ETFs for UK retail investors must be authorised by the FCA, and its promotions must be clear, fair and not misleading.
- If an authorised UK platform or provider fails, FSCS may protect eligible investments up to £85,000 — this covers the firm failing, not losses from the ETF falling in value.
- If you are treated unfairly or badly advised, you can complain and escalate to the Financial Ombudsman Service.
General information, not personal advice
Consumer Credit is an independent information service. We do not provide regulated financial advice or sell financial products. For advice on your own situation, speak to an appropriately authorised firm or a free service such as MoneyHelper. About Consumer Credit.
Sources
We checked this page against these official and authoritative sources.
- FCA, Exchange-traded products — information for investors (opens in a new tab). Accessed 22 Aug 2026.
- MoneyHelper, Investment funds and how they work (opens in a new tab). Accessed 22 Aug 2026.