Microsoft and Apple are now worth over $4 trillion apiece and are helping drive the Dow, S&P 500 and Nasdaq Composite to record levels as investors embrace the new iPhone and AI.

A day after Microsoft became the second-ever company to finish a trading session with a $4 trillion market capitalization, Apple became the third. Apple achieved the feat on Wednesday, following a brief flirtation with the requisite level on an intraday basis Tuesday.

Wall Street's three main indexes touched record highs again on Tuesday, with the Nasdaq gaining the most thanks to boosts from Microsoft and Apple in a week packed with earnings from U.S. heavyweights.

The S&P 500 has been in a bull market for three years, but the momentum could stall, depending on the outcome of several crucial events this week.

Apple stock is trading near its all-time high. Yet it has underperformed most of the other Magnificent 7 stocks this year.

Apple and Microsoft have each broken the $4 trillion (£3 trillion) valuation mark this week, hitting record stock highs

President Donald Trump’s effort to build a big ballroom for the White House has made waves — and attracted donations from more than a dozen publicly traded companies.

Apple and Microsoft are two tech giants—but which stock is more likely to grow your wealth by 2030? Experts break down the risks and rewards.