The Nikkei stock index jumped over 4 percent to close at a record high on Monday, as the yen weakened to near the mid-150 range against the U.S. dollar, fueled by optimism following the ruling party's election of fiscal dove Sanae Takaichi as its new leader.The 225-issue Nikkei Stock Average soared 2,175.26 points, or 4.75 percent, from Friday to 47,944.76. It renewed its record high close for a second straight trading day, with its fourth-biggest point gain in history. The broader Topix index finished 96.89 points, or 3.10 percent, higher at 3,226.06, also marking a record high close.Almos…READ FULL ARTICLE