Apple is on pace to snap Nvidia's 272-trading-day streak as the largest U.S. company by market cap. The iPhone maker, which has never cracked the $5 trillion market cap threshold, is also closing in on that milestone.

-- Apple's stock price today hit a new all-time intraday high of $339.50. Its market cap in late morning trading was $4.95 trillion, compared with Nvidia's $4.8 trillion. The share price for Apple to get to a $5 trillion market cap: $340.43.

-- Nvidia, a fellow Magnificent Seven tech stock, hit the $5 trillion milestone late last year.

-- Apple, which reports earnings Thursday, is the only Mag-Seven stock poised to hit a record. The other six are at least 15% away from their respective record all-time highs, according to Dow Jones Market Data.