The following is part of Morningstar's 2018 Portfolio Tuneup week. A version of this article previously appeared on Nov. 7, 2017.
Since the end of the financial crisis, it's been hard to go wrong with most investment types. Stocks of all types and from nearly every geography have gone up, while bond prices got a boost from declining interest rates. Unless you've had money under the mattress (or in cash) or sunk your whole portfolio into gold and commodities, it's a good bet that you've made money in your retirement portfolio over the past eight years.