KiloMicrosoft has a market capitalization of about $3.13 trillion in 2026, the fourth most valuable company in the world behind NVIDIA, Alphabet and Apple. Microsoft was the third public company ever to reach a $1 trillion valuation, on April 25, 2019, after Apple and Amazon. It reached $2 trillion in June 2021 and $3 trillion in January 2024. Azure cloud and AI, including Copilot and its OpenAI partnership, carried most of that climb. See where it ranks today on the Kilocorn Club.
Microsoft's road from $1 trillion to $3 trillion
| Date | Market cap |
|---|---|
| Apr 25, 2019 | $1.00T |
| Jun 2021 | $2.00T |
| Jan 2024 | $3.00T |
| May 2026 | $3.13T |
Microsoft crossed $1 trillion on April 25, 2019, the third company to do so. It took about two years to reach $2 trillion in June 2021, then under three more to pass $3 trillion in January 2024. By 2026 it sits at roughly $3.13 trillion. Compare it with the rest of the most valuable companies.
What drives Microsoft's value
Two engines do most of the work: Azure and AI. Azure is the second largest cloud platform after AWS, and its growth re-rated the whole company in the late 2010s. The 2023 deepening of the OpenAI partnership and the Copilot rollout across Windows, Office and GitHub added a second leg. Microsoft trails NVIDIA, Alphabet and Apple's market cap, but it remains one of the steadiest compounders in the top five.
How big Microsoft is next to whole economies
At $3.13 trillion, Microsoft is worth more than the annual economic output of all but a few of the largest countries. Its market value exceeds the GDP of France, the United Kingdom, Italy or Brazil. If it were a national economy it would rank among the ten largest on earth.
Frequently asked questions
What is Microsoft's market cap in 2026?
About $3.13 trillion, the fourth largest in the world after NVIDIA, Alphabet and Apple.
When did Microsoft reach a $1 trillion market cap?
On April 25, 2019, the third public company to cross $1 trillion after Apple and Amazon.
When did Microsoft reach $3 trillion?
Microsoft first crossed a $3 trillion market value in January 2024.
Is Microsoft bigger than Apple?
No. As of 2026 Apple is worth about $4.41 trillion and Microsoft about $3.13 trillion, so Apple ranks ahead at third and Microsoft fourth.
What makes Microsoft so valuable?
Mainly Azure cloud and AI. Azure is the second largest cloud platform, and the OpenAI partnership and Copilot products added a fast-growing AI business on top.