Investors who started their investment careers 20 years ago--which is the group that our Moderate ETF Saver portfolio is created for--have endured one heck of a ride.

They witnessed blue-chip mania in the mid-1990s, just as they were funding their 401(k)s. They've seen the dot-coms rise and fall, and a different set of dot-coms grow up in their place. They've invested through 9/11, more than a decade's worth of U.S. involvement in wars in the Middle East, and the global financial crisis from 2007-09. Most recently, they've lived through the fourth-longest-running equity rally in market history.