How Do ETFs Work? The Complete Beginner’s Guide to Exchange-Traded Funds

An ETF, or exchange-traded fund, is an investment vehicle that bundles multiple assets—stocks, bonds, commodities, or combinations thereof—into a single tradable security. When an investor purchases one ETF share, they obtain ownership in a collection of underlying holdings, such as all 500 companies in the S&P 500 index, without needing to buy each security individually.
ETFs operate through two concurrent mechanisms. On the public exchange, shares trade throughout the trading