Apple has become the first company in history whose market value topped the $US800 billion mark and remained there at the close of a trading session.
The stock nudged through the $US800 billion mark for a short time on Monday, and renewed the assault overnight Tuesday, and stayed there to the end.
Apple rose 0.64% to end at $US153.99, giving it a market valuation of $US802.9 billion, a first for an American company.
Investors are optimistic the Cupertino, California company will mark the 10th anniversary of the iPhone later this year by launching a model with a range of new features.
But the biggest reason is the optimism is the strong support for the stock from Warren Buffett and his Berkshire Hathaway company which now owns around $US20 billion of Apple shares – all bought in the past year while some of his peer investors (such as Carl Icahn were selling).
Apple shares performed well despite the wider market having a slow day. The S&P 500 fell after edging up to an intra-day record high for the second straight session.