Target-date funds are assets that are designed to offer long-term growth by a set time

People can invest in target-date funds in several ways. The most common is through a company 401(k) that offers target-date funds.FatCamera/Getty
A target-date fund is a type of mutual fund or ETF that is designed to help with retirement investments for anyone with a specific retirement date in mind.
Target-date funds are made up of various investments and will change over time to become more conservative as the "target date" approaches.
Target-date funds are structured in a way that's known as