Within minutes of trading beginning, his venture firm's stake was worth as much as $200 million. : Rapper Nasir Jones, known better as Nas, has emerged as an unlikely winner in today’s Coinbase IPO. An early investor in the company, the rapper’s stake is worth at least $40 million. The cryptocurrency exchange was valued at $99.6 billion today when trading began and reached a valuation of over $100 billion in minutes. Jones’ QueensBridge Venture Partners was an early backer of Coinbase, joining the company’s $25 million Series B round in 2013.