Apple (AAPL) is approaching a pivotal September that includes a CEO transition alongside the iPhone 18 launch, Apple's first foldable phone, and a revamped Siri.
That September 2026 executive hand-off – where longtime leader Tim Cook will hand the reins to Senior VP of Hardware Engineering John Ternus – represents one of the most consequential leadership changes in recent corporate history, given Apple's $4.55 trillion market capitalization and its consistent standing as one of the world's most valuable companies.