Wall Street pros are famously still at loggerheads over the fate of the trillion-dollar 60/40 complex — only this time the balanced investment strategy is posting losses on a scale that’s shocking even its biggest critics. With stocks and Treasuries tumbling anew thanks to the Federal Reserve’s increasingly hawkish policy direction, the time-honored method of allocating 60% to equities and 40% to fixed income has plunged about 14% so far this quarter. That’s a worse quarterly showing than in depths of the global financial crisis and during the once-in-a-century pandemic rout, according to data compiled by Bloomberg.