Intel Corp. shares plunged in premarket trading after Chief Executive Officer Lip-Bu Tan gave a lackluster forecast and warned that the chipmaker was struggling with manufacturing problems. The Bank of Japan held its overnight call rate at 0.75%. The yen weakened against the dollar as the BOJ held steady. Japan’s top currency official later declined to comment on whether the government stepped into the market after the yen plunged over 150 pips in just a few minutes. The Opening Trade has