Shares of Nvidia rose more than 5% Wednesday, pushing the company's market cap above Apple for the first time.
The S&P 500 and Nasdaq hit highs and many stocks flashed buy signals on just-right economic data. Nvidia topped a $3 trillion valuation, passing Apple.
Will Alphabet's 2022 acquisition of cybersecurity firm Mandiant turn out to be a home run for Google stock, like YouTube, or less of a game-changer?