South Korean equities opened lower on June 10, with the KOSPI declining 2.43 percent at the open according to Yonhap News. Verified reports link the move to U.S. strikes on Iran following the downing of an American helicopter and to disappointing forecasts from U.S. semiconductor firms. U.S. indices closed mixed the prior session, with the Dow Jones rising while the Nasdaq and S&P 500 declined.