Apple (AAPL) closed at $338.98 on September 21, 2026, topping its previous record close of $338.49. The rally is not driven by sales that have already happened, since the iPhone Duo has not shipped yet. It reflects a shift in how the market sees Apple: from an AI laggard to a company that can compete, or even lead.
Siri AI in iOS 27 Delivers What Apple Promised
The biggest factor for investors is the new Siri in iOS 27, which AppleInsider reports is largely as improved as Apple had promised. After a year of criticism that Apple trailed Google and Microsoft in AI, seeing real results on devices has eased one of the market's biggest concerns about the stock.
iPhone Duo: Apple's First Foldable Starts at $1,999
The second driver is the iPhone Duo, Apple's first foldable phone. Starting at $1,999, it is the most expensive iPhone Apple has ever sold. Pre-orders open on October 16, with in-store availability on October 23. The market expects the premium device to lift average selling prices, although real demand will only be clear after launch.
John Ternus Takes Over as CEO Without Disruption
Apple also handed the CEO role from Tim Cook to John Ternus this year, a transition the market sees as smooth. The stock crossed $300 in May and briefly traded above $340 on July 28, when Apple's market cap topped $5 trillion for the first time.
What It Means for Investors: Expectations Are Already Priced In
Today's price already bakes in a lot of optimism about Siri AI and the iPhone Duo, while actual iPhone Duo sales data does not exist yet. The next tests are mid-October pre-order numbers and earnings at the end of October. Strong pre-orders could send the stock back toward a $5 trillion valuation, but a miss could quickly unwind the premium the market has paid in advance.
