… Which is a question that comes up again and again; more recently by Rayne H on Instagram.
Both are baskets of investments that track an index — same idea, different packaging.
ETF — trades like a stock. You can buy and sell it any time the market’s open, at whatever the live price is. Usually cheap to hold and easy to get into (even one share).
Index fund — bought straight from the provider, and it only prices once a day after the market closes. So everyone buying that day gets the same price. Often handles automatic monthly contributions nicely.
Bottom line: “index fund” describes what it does (quietly tracks an index), while ETF vs mutual fund is just how it’s wrapped.
Most ETFs track an index too — the everyday difference people mean is “trade-it-anytime ETF” vs “priced-once-a-day index fund.”
Quick UK note: ETFs trade like shares, so you’ll see spreads and maybe a dealing fee. Index funds skip the spread but can carry their own platform charges.
What’s the next thing you’re buying?