Central banks sell yen to help Japan stem recent surge

The US currency still had its biggest quarterly drop in 14 years on expectations waning foreign demand for US financial assets will damp the need for dollars. It sank 10.5 percent this quarter against a basket of currencies comprised of the yen, euro, Swiss franc, Swedish krona, Canadian dollar and British pound, compiled by the New York Board of Trade. That's its steepest decline since the October-December period in 1987.