Apple added $570 billion to its market capitalization over the summer of 2026, a 15% rally since June 25 that speaks to one thing above all else: investors believe the foldable iPhone is a big deal. The question now is whether John Ternus, Apple’s new CEO, can actually deliver on that belief.
Ternus officially took the top job on September 1, succeeding Tim Cook after a 15-year run. Cook moves to executive chairman. Ternus’s first major product event follows just eight days later, on September 9.
A new CEO, a new form factor, a very high bar
Ternus is 51, joined Apple in 2001, and spent years running hardware engineering before stepping into the corner office.
Analysts are projecting initial shipments somewhere between 6.5 and 10 million units, with a retail price expected to land between $2,300 and $2,500. Revenue projections tied to those shipment forecasts already exceed $14 billion.
Apple’s stock, despite the summer surge, still sits roughly 7% below the all-time high it set on July 28.
The AI question hanging over the whole thing
Beyond the foldable itself, Ternus inherits a narrative problem that Cook never fully resolved: the perception that Apple is running behind in artificial intelligence. For Ternus, the September event is therefore two launches in one. He needs to present a compelling physical product in the foldable iPhone, and he needs to demonstrate that Apple’s software and AI capabilities are evolving fast enough to justify the hardware’s price tag.
Rising component costs add a third layer of complexity. The foldable form factor is mechanically demanding, and premium components for a device of this complexity do not come cheap. Ternus spent 25 years on the hardware side, which means he understands the cost structure intimately.
What investors are actually watching
The $570 billion market cap increase reflects institutional confidence that the foldable iPhone can reignite the kind of upgrade cycle Apple has not seen since the early days of the smartphone era. The rally priced in a successful launch. If Ternus delivers, the stock has a clear path toward and potentially through its July 28 record.
Samsung has been selling foldable devices for years, and while those products have found a loyal audience, they have not reshaped the smartphone market the way their launches promised. Apple entering the category at this scale, with its retail footprint and ecosystem pull, is a categorically different test of whether foldables can become mainstream rather than niche.