Preview article. This text is a draft and has not yet been editorially reviewed. The worked examples are our own calculations and are for illustration only.
In short
- ETF stands for exchange-traded fund: a fund that trades on a stock exchange.
- Most ETFs track an index. They don’t try to beat it; they try to follow it as closely as possible.
- One purchase spreads your money across many companies, but the price can still fall sharply.
- Check what the index contains, the ongoing charges, the fund’s size and what happens to dividends.
What does ETF mean?
ETF is short for exchange-traded fund. A fund pools money from many investors and invests it according to a fixed approach. Instead of buying shares in individual companies, you buy units of the fund.
Unlike many traditional investment funds, an ETF can be bought and sold on the exchange throughout the trading day, at the current market price. In practice, that makes it feel much like owning a share.
How does an ETF track an index?
An index is a list of investments put together under fixed rules, such as the largest listed companies in a region. An index-tracking ETF aims to match the return of that list as closely as it can. There is no fund manager picking stocks in the hope of beating the market.
Funds track an index in one of two ways:
- Physical replication: the fund buys the shares in the index, either all of them or a representative sample.
- Synthetic replication: the fund uses agreements with a counterparty (swaps) to receive the index return.
No ETF matches its index perfectly. Costs and practical constraints mean the fund’s return usually differs slightly from the index.
Why do investors use ETFs?
- Diversification: a single ETF can hold hundreds or thousands of companies, so one company’s problems matter less to the whole.
- Costs: index funds often have lower ongoing charges than funds where a manager actively selects shares.
- Transparency: the make-up of the index is public, so you can see what you’re investing in.
- Tradability: you can buy and sell during market hours.
What should you check?
- The index: which countries, sectors and companies does it include? A global index is very different from a single-sector one.
- Ongoing charges: a yearly percentage that is taken from the fund’s value, so you never see it as a separate payment.
- Size and liquidity: larger, frequently traded funds often have a smaller gap between buying and selling prices (the spread).
- Dividends: a distributing ETF pays dividends out; an accumulating ETF reinvests them.
- Currency and domicile: these can affect price movements and the tax withheld on dividends.
- Your broker’s fees: transaction and platform fees come on top of the fund’s own costs.
Before you invest, always read the fund’s key information document (KID). It sets out the fund’s objective, risks and costs.
Which risks remain?
Diversification reduces the risk that a single company hits your whole investment. It doesn’t protect you from a fall in the market as a whole. When stock markets drop, a broad ETF drops with them. Returns are never guaranteed, and you can lose money.
Sources: will be added during editorial review, together with the publication date.
Please note: this article is general information, not personal financial advice. Investing involves risk; you can lose some or all of the money you invest.
