In five years, Yoshikazu Tanaka became Japan’s youngest billionaire as investors piled into Gree Inc., valuing his controlling stake in the early maker of phone- based games at $4 billion. Just 18 months later, that has shriveled to about $1.4 billion.
Softbank Corp. fell the most in six months in Tokyo trading after Dish Network Corp. offered $25.5 billion for control of Sprint Nextel Corp., sparking concerns the Japanese wireless carrier may raise its own bid.
Yahoo Japan Corp., operator of the country’s most-visited Web portal, surged the most since at least 2003 in Tokyo trading after raising its annual profit forecast and announcing plans to buy back shares.
Yahoo Japan Corp. fell the most in three weeks in Tokyo trading as the government said it will question the company about plans to display advertisements based on the contents of users’ e-mail messages.