Despite the big run-up in the stock, one Wall Street analyst thinks there is room to run.It's been quite the year for artificial intelligence (AI) chipmaker Nvidia (NVDA 5.13%), which has seen its stock rise more than 161% year to date. Over the last five years, Nvidia's stock is up by more than an astounding 2,560%.In doing so, Nvidia has reached a nosebleed valuation and now trades at 40 times forward earnings. Investors believe that Nvidia's stock doesn't have a ceiling right now, considering the potenti ...