Nvidia's growth has stunned the market - even when compared to its artificial intelligence peers - riding high on this year's wave. The company took the title of the world's most valuable company earlier this month, but just days after reaching this milestone, Nvidia's stock price took a plunge losing £430 billion dollars from its market cap over just three days. So what was behind the decline of one of Wall Street's darlings and will it bounce back? Matt Turner, who leads Bloomberg's US equities coverage tells Stephen Carroll why the tech giant's worth is proving so elusive.   See omnystudio.com/listener for privacy information.