The stock has had a phenomenal run over the last few years, but Arya's price target of $190 implies 35% upside for the shares over the next year or so. Let's see if that estimate is reasonable based on Nvidia's growth and valuation.

Rising technology stocks helped U.S. indexes recover more of their holiday-season slide that bridged the new year.

Uber drove 3.9% higher after the ride-hailing app said it would accelerate $1.5 billion in purchases of its own stock, part of a previously announced $7 billion buyback program. Uber’s chief financial officer, Prashanth Mahendra-Rajah, said it’s making the move because its stock price looks cheap compared with the strength of its business.