Nvidia might be the world’s most valuable business. But at twice the price of Alphabet with half the revenues, is it too expensive to consider buying? The post As Nvidia hits $1trn, is it too late to buy the stock?

Nvidia briefly reached a market capitalization of $4 trillion on Wednesday, making it the first company in the world to reach the milestone and solidifying its position as one of Wall Street's most-favored stocks.

The chip maker’s shares have been rallying since late April, putting its valuation on the brink of an all-time high.