The legacy Tim Cook leaves behind

Tim Cook spent 15 years leading Apple while facing an unwinnable comparison with Steve Jobs. The question was whether he could match Jobs’s vision. But Cook was never hired to become Jobs, and his achievement lay elsewhere: he took the founder-driven company Jobs left behind and made it much larger, more systematic and harder to disrupt.

The numbers capture the scale of that transformation. Apple was worth about $350 billion when Cook became chief executive in 2011. By the end of his tenure, its market value stood at roughly $4.6 trillion, after briefly touching $5 trillion in July. Annual revenue rose from around $108 billion to more than $400 billion, while Apple shares climbed more than twentyfold.

Cook’s strength was scale. He had helped build Apple’s supply chain into a competitive advantage before becoming CEO, then used the iPhone as the foundation for a widening commercial universe. The phone became an entry point to the Apple Watch, AirPods, Apple Pay, iCloud, Music, TV+, Fitness+, the App Store and other services. Customers were not simply buying devices. They were entering a network in which hardware, software and subscriptions supported one another. By 2025, services revenue had passed $100 billion a year.

That model reduced Apple’s dependence on persuading customers to buy every new iPhone. It also produced successful hardware businesses without Jobs. The Apple Watch grew from an uncertain luxury device into a health and fitness platform, while AirPods became a cultural phenomenon. Cook’s less visible but highly consequential decision to abandon Intel processors and accelerate Apple’s move to its own silicon gave the company more control over performance, power use and the relationship between hardware and software. Cook did not create another iPhone-sized breakthrough. Instead, he built a company that extracted extraordinary value from the iPhone revolution for far longer than many expected.