SpaceX Surges Past Microsoft And Becomes The Fourth Most-Valuable Company In The U.S.

SpaceX is now the fourth largest company in the U.S. by market capitalization in its third day of trading. (Credit: Getty Images)

SpaceX became on Tuesday the fourth largest company in the U.S. by market capitalization as its stock continues climbing on its third day of trading.

The milestone took place for a brief period of time, when the company's market cap rose to $2.94 trillion, more than Microsoft's $2.93 trillion. It also surpassed Amazon. Only Apple, Alphabet and Nvidia had a larger market capitalization at that point.