(Bloomberg) — Long before he ran the world’s best-performing hedge fund, Qian Yongqiang chaired China’s biggest online dating service.The Yale graduate would spend hours tracking down attractive users with suspicious profiles, sifting through accounts and deleting thousands of scammers to improve the site’s authenticity and ensure its success.Now he’s betting that same attention to detail and strong returns will help turn his Singaporean firm into a wealth management giant. Between January and September, QQQ Capital Management posted gains of 275%, making it the top hedge fund in the world, according to Eurekahedge data. QQQ says assets under management rose to […]