Exchange-traded funds (ETFs) are becoming popular among retail investors. These are passive funds that trade on the stock exchanges and can be bought and sold just like stocks. In a recent discussion with Kundan Kishore, deputy editor of Outlook Money, Chintan Haria, head of product development and strategy at ICICI Prudential Mutual Fund, and Vishal Dhawan, founder of Plan Ahead Wealth Advisors to explained how ETFs work and whether they are suitable for all kinds of investors.