Nvidia stock was edging up in premarket trading Wednesday as the investors sought out a potential bargain in the chip maker’s shares. Evidence of more money flowing into artificial-intelligence infrastructure should help.

Nvidia Corp.’s market performance over the past six months is a good illustration of the difference between a good company and a good stock.

Nvidia has led the artificial intelligence boom to become one of the stock market’s biggest companies, as tech giants continue to spend heavily on the company’s chips and data centers needed to train and operate their AI systems.