Wall Street is once again fixated on Nvidia, as the main player in the artificial intelligence mania is set to report earnings after the bell Wednesday and give an update on demand for its semiconductors,

Nvidia reported its fourth-quarter results after Wednesday's closing bell. Investors and analysts have focused on early sales of the company's new Blackwell line.

Nvidia’s earnings don’t just move markets—they are the market. The latest results, due Wednesday after the closing bell, will represent more than a marginal company update. They’ll provide a litmus test of whether the artificial intelligence trade has room to run,