The chip maker’s stock touched an intraday level needed to achieve a $4 trillion market cap, but has since pulled back slightly.

Nvidia on Wednesday hit $4 trillion in market value, making it the first publicly traded company to hit that milestone.

Microsoft, valued at $3.725 trillion, sits just below Nvidia in market cap rankings. Apple follows with its valuation just above the $3 trillion mark. Of the three, Nvidia accounts for 7.3% of the S&P 500, surpassing Apple at 7% and Microsoft at 6%.