$350 billion to $4 trillion: the number that ended on 1 September

Wall Street measures a chief executive in one currency, and by that measure Tim Cook's tenure at Apple closed on 1 September 2026 with a figure that will be quoted for a long time.

Apple's value under Cook

Apple's market value went from about $350 billion when Cook took over in 2011 to roughly $4 trillion when he handed off. Revenue climbed from $108 billion in FY2011 to $416 billion in FY2025. Services alone became a business worth more than $100 billion a year — larger, on its own, than most of the companies it is listed alongside.

That is roughly $3.65 trillion of added market value over fifteen years. There is no second entry close to it.

Why it cannot happen again

The arithmetic forbids it. Repeating the multiple would mean a company worth $44 trillion, which is a large fraction of every listed company on earth. The next chief executive is structurally barred from being judged the way the last one was, and any analyst still reaching for that yardstick is using a broken instrument.

So the successor's scorecard has to be built out of something else: margin, the installed base, and whether the services line keeps compounding once the device count stops.

The successor

John Ternus, chief executive since 1 September, joined Apple in 2001 and was senior vice president of Hardware Engineering. An operator, from inside, with no mandate to break anything — the appointment markets read as continuity, announced on 20 April and executed on schedule 134 days later.

Cook stays as executive chairman with a stated remit that includes engaging with policymakers worldwide; Arthur Levinson became lead independent director.

The number nobody trades on

One line in the record does not fit the others: Apple's carbon footprint is 60% below 2015 levels, achieved across the same years the revenue quadrupled. It moves no share price. It is also the only figure in the set that got harder to produce every year the others got bigger.