The more stocks and bonds move together, the less the logic of the classic 60/40 strategy holds. But investors should not ditch their splits just yet https://www.economist.com/finance-and-economics/2026/04/14/how-to-build-a-portfolio-when-bonds-fail-to-buffer-stocks?taid=69e217634d22860001045081&utm_campaign=trueanthem&utm_medium=social&utm_source=voante