Softbank diluted to 34.2% after RenRen's initial public offering, having originally invested $100m in April 2008, according to data provider Zero2IPO. By December last year, Softbank had invested $315m to give a six times return on the book value of its holding at $14 per share, Zero2IPO added.

Japan-based internet group Softbank has made a paper profit of a reported six times from its one-third holding in RenRen, a China-based social networking service, that raised up to $584.1m in its New York flotation.

RenRen offered 53.1 million American depository shares (ADS) at $14 each, the top end of its revised range.

Its opening price of $19.50, was 39.3% up from issue price, and RenRen’s first day closing was $18.01 per share giving a market capitalization of more than $7bn.

Softbank diluted to 34.2% after RenRen’s initial public offering, having originally invested $100m in April 2008, according to data provider Zero2IPO. By December last year, Softbank had invested $315m to give a six times return on the book value of its holding at $14 per share, Zero2IPO added.

Previously, RenRen had raised $58m from venture capital firms Accel Partners, DCM, General Atlantic, Legend Capital (the corporate venturing unit of computer maker Legend) and Technology Crossover Ventures, according to news provider PEHub.

James Mawson

James Mawson is founder and chief executive of Global Venturing.