Which company briefly became the world’s most valuable public company in June 2024 after an AI-driven stock surge?

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Nvidia briefly became the world’s most valuable public company in June 2024 after an AI-driven stock surge.

Nvidia overtook Microsoft and Apple by market capitalization on June 18, 2024. The shift reflected investor expectations that Nvidia would continue supplying the advanced processors needed by major cloud providers and AI developers. Its position at the top was temporary because rankings change whenever share prices move.

Nvidia’s graphics processing units can perform many calculations in parallel, making them useful for machine learning as well as rendering images. The company also developed CUDA, a software platform that made it easier for programmers to use Nvidia hardware for general-purpose computing.

Being the most valuable public company by market capitalization does not mean Nvidia had the highest revenue, largest workforce, or greatest physical footprint. It means investors assigned the highest total equity value to its publicly traded shares at that moment.

Source: Wikipedia · fact-checked Oct. 2026

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