Nvidia’s total market value as of the close Wednesday, tops in the S & P 500. It regained the No. 1 sport from Apple ($3.461 trillion) earlier this week. Microsoft is the only other company with a market value above $3 trillion ($3.089 trillion). One year ago, Nvidia's market value was around $1.243 trillion.

Nvidia is set to deliver its highly anticipated earnings after the closing bell Wednesday, with analysts overwhelmingly bullish on the chipmaker's stock.

Nvidia reported fiscal third-quarter earnings after Wednesday's closing bell. MarketWatch will be breaking down the results.

SpaceX, under the leadership of Elon Musk, is reportedly preparing to initiate a tender offer next month. What Happened: SpaceX's tender offer will allow the sale of existing shares at $135 each, valuing the company at over $250 billion, as reported ...