Korea M&A Corporation

GCA Holdings Corp. shares surged as much as 17 percent, the stock's daily allowable gain, after the investment-advisory firm said it will acquire a U.S. company. The shares rose as much as 100,000 yen to 694,000 and finished the morning trading session on the Tokyo Stock Exchange at 663,000. Tokyo-based GCA, the second-ranked Japanese adviser on mergers this year, will acquire closely held Savvi..