Government-Bond Swings Burn Wall Street Investors

A rapid U-turn in government-bond markets has sparked deep losses for some of Wall Street’s biggest investors, a stark demonstration of how even small shifts in expectations for economic growth and central-bank policy can upend the most carefully laid bets.

Behind the losses are recent abrupt moves in government-bond prices. With central banks signaling plans to end their extraordinary stimulus measures, short-term bonds have tumbled in price, sending yields—which rise when prices fall—to touch their highest levels since March 2020.