Nintendo's market cap doubles to $42 billion since Pokemon GO launch

By Hideyuki Sano TOKYO (Reuters) - Shares of Japan's Nintendo Co soared another 14 percent on Tuesday, more than doubling the firm's market capitalization to 4.5 trillion yen ($42.5 billion) in just seven sessions since the mobile game Pokemon GO was launched in the United States. The phenomenal success of Pokemon GO - now available in 35 countries, the majority in Europe, and most recently in Canada - has triggered massive buying in Nintendo shares, surprising even some seasoned market players.