What is an ETF, in plain English?

Think of an ETF — an exchange-traded fund — as a basket. Instead of buying one company's shares, you buy a single unit of the basket, and inside it are dozens or even thousands of companies. You buy and sell that basket on the ASX just like any normal share.

Why so many people start here

• Instant spread. One purchase can give you a slice of hundreds of companies, so no single one can sink you.
• Low effort. You don't have to research and pick individual winners.
• Low cost. Most index ETFs charge a small yearly fee, often a fraction of a percent.

The catch people forget

A basket is only as diversified as what's inside it. An ETF that tracks the Australian market, for example, is still heavily weighted toward a few big banks and miners — because those companies dominate the index. So you can own one ETF and still be surprisingly concentrated in a couple of forces. Diversified isn't always the same as spread out.

An ETF answers 'what do I own?' easily. The harder question is 'what am I actually exposed to?'

ETFs are a genuinely good starting point for most people. Just remember to look through the basket to the forces inside it — that's where your real risk lives.

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