Plain-English definitions.

Investing has its own vocabulary. We define the terms that may trip you up.

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What is an ETF? A simple guide for Belgian investors

The most-asked beginner question, answered properly. What an ETF is, how they work, and why they're the easiest entry into investing.

4 min read·   Updated May 2026·  Beginner

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Two paths through the glossary

02

Index explainers

The headline indices, in plain English.

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