An exchange-traded fund, or ETF, is a type of investment fund made up of a group of securities (like stocks and bonds) that are traded on the stock exchange. ETFs include a variety of securities across several industries, making it a good product for low-risk investors who aren't experienced enough to pick stocks individually but would like to invest in a particular industry like tech. Moreover, many ETFs are managed by ETF fund managers, so passive investors can benefit by allowing their broker or fund manager to make the investing decisions. For those who prefer to invest over a longer period of time, ETFs are a good option, since factors such as luck and market cyclicality cancel each other out. This alleviates the volatility that typically occurs with short-term investing. That being said, you can simultaneously trade ETFs and other products depending on which brokerage you are working with.