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Apple CEO Tim Cook leaves a $4 trillion company. Here are the four major numbers that define his 15-year leadership.

Tim Cook is preparing to hand over the keys to Apple. As he steps aside in September 2026 for John Ternus, the focus has shifted to his actual record.

When Cook took over from Steve Jobs in August 2011, he had massive shoes to fill. Jobs passed away just six weeks later. Yet, Cook did not just keep the company running. He built a financial empire.

Here is the plain truth about his 15 years in charge, broken down into four simple numbers.

The $4 Trillion Jump

When Tim Cook became CEO, Apple was worth about $350 billion. Today, it sits at roughly $4 trillion. To put that in perspective, Apple is now worth about as much as the entire economy of the United Kingdom.

If you look at the stock price alone, it has grown by 20 times. The overall company value grew by about 11 times. Both facts are correct. The difference is because Cook spent billions buying back Apple's own shares. This reduced the total number of shares available, making each remaining share much more valuable.

The Revenue Multiplier

Apple did not just grow its stock price; it multiplied its actual business. Under Cook, annual revenue nearly quadrupled. It jumped from $108 billion to $416 billion.

Profit grew even faster, hitting $112 billion recently. That is an eight-fold increase from 2010. Cook achieved this by expanding the iPhone globally and launching new hit products. The Apple Watch arrived in 2014, and AirPods followed in 2016. Together, these wearables pulled in over $41 billion in a single year.

The Services Goldmine

This is perhaps Cook's smartest move. In 2011, Apple made just $2.8 billion every three months from services like apps and music. Today, that quarterly figure is $30 billion.

Over a full year, Apple's services arm brings in $109 billion. That single division now makes more money in a quarter than OpenAI makes in an entire year. This changed how investors view Apple. It stopped being just a phone maker and became a high-profit software giant.

The $1,000 Phone Trick

In normal business, electronics get cheaper as competition grows. Cook ignored this rule completely.

In 2011, the average iPhone sold for $712. By 2025, that price jumped to $1,070. When Apple broke the $1,000 barrier with the iPhone X, many people laughed. But it worked. By pushing prices up, Cook made sure Apple could sell fewer phones but still make more money than competitors selling cheap devices.

What The Numbers Hide

A honest assessment must look at the blind spots. Those impressive charts do not show Apple's current struggles with Artificial Intelligence. Since the arrival of ChatGPT, Apple has looked slow. Its "Apple Intelligence" update faced heavy criticism, and the company even lost its top AI chief last year.

The charts also hide the struggles of the Vision Pro headset, which has failed to gain mass market appeal since its 2024 launch.

Still, the financial facts speak for themselves. Cook took a great hardware company and turned it into the most efficient money-making machine in modern corporate history. He currently holds a personal fortune of $2.9 billion, capping off a truly remarkable run.