Network reports, Nvidia (NVDA.O) The stunning rally since the beginning of last year has finally come to an end, at least in the eyes of New Street Research analyst Pierre Ferragu。Ferragu downgrades Nvidia to neutral from buy。He believes Nvidia's share price has "fully reflected" its valuation after rising 240 per cent last year and 157 per cent this year.。The stock fell 0 on Friday.6%。Nvidia's gains this year ranked second among S & P 500 constituents, behind another AI concept, Super Micro Computer Inc.。Nvidia's market value has increased by 1 this year..$9 trillion, once crowned the world's most valuable company。New Street sets Nvidia price target at $135 in one year。