Exchange-Traded Funds (ETFs) are investment funds that are traded on stock exchanges, much like individual stocks. They typically aim to track the performance of a specific index, commodity, bond, or a basket of assets. ETFs offer diversification and liquidity, making them popular among investors. They can be a cost-effective way to gain exposure to various markets without having to buy each underlying asset individually. Keep in mind that, like any investment, ETFs carry risks, and it's important to understand the specific characteristics and objectives of each ETF before investing.