The 60/40 Portfolio: History, Critique, and What Comes Next

For decades, the 60/40 portfolio has been the go-to answer for "how should an ordinary investor be invested?" This means holding about 60% in stocks and 40% in bonds. This mix isn’t random. It’s based on a real pattern: stocks and bonds often show low or even negative correlation, especially during stock market downturns. When stocks fall, bonds can provide genuine diversification and a cushion when you need it most. This trend has been consistent through many historical declines, which is why the 60/40 allocation has been seen as a sensible default for years.

However, 2022 brought a significant challenge to that classic view. Both stocks and bonds fell sharply that year. This unusual simultaneous decline shattered the expectation that bonds would reliably cushion stock downturns. The reason ties back to a concept discussed elsewhere: the inverse relationship between interest rates and bond prices. As the Federal Reserve raised interest rates aggressively in 2022 to combat inflation, existing bonds with lower fixed rates became less appealing. This led to a drop in bond prices. At the same time, those same rate hikes pressured stock valuations downward. It was a double hit that the classic 60/40 logic didn’t see coming.