NEW YORK (AP) — U.S. stocks are opening higher following big gains in Asia after Japan made moves to rev up its economy. The Standard & Poor’s 500 index rose 18 points, or 0.9 percent, to 2,012 as of 9:35 a.m. Eastern time Friday. The Dow Jones industrial average rose 148 points, or 0.8 percent, to 17,346.