The suit alleges two firms sold several large blocks of shares in companies in which Archegos held positions after learning company likely to fail.
Former Treasury Secretary Lawrence Summers castigated monetary policy makers in the U.S. and elsewhere for paying too much attention to social issues.
Inflation, which most central bankers view as temporary, may well persist amid a strong U.S. economy and tight labor market.
Fixed-income trading has cooled, customer interest in stock has propped up revenue on equities desks and supported a spree of corporate dealmaking.