Nvidia tops US public companies list with $5.5T market cap

Nvidia just crossed a threshold that would have sounded absurd three years ago. The company’s market capitalization hit approximately $5.5 trillion, making it the most valuable public company in the United States and leaving longtime frontrunners Apple and Microsoft in the rearview mirror.

The stock reached a record intraday high around $227.16 per share. To put $5.5 trillion in context, that’s larger than the entire GDP of Japan, the world’s fourth-largest economy.

The AI infrastructure monopoly paying off

Nvidia has positioned itself as the central hardware provider for large AI labs, with its GPUs commanding a majority share of high-end AI accelerator deployments. Every major foundation model, every hyperscaler data center build-out, every enterprise AI project: they all run through Nvidia’s silicon.

What makes this rally particularly striking is its resilience in the face of a major revenue headwind. Nvidia has lost all revenue from mainland China due to US export controls on AI chips. Yet here we are, with the company hitting all-time highs anyway.

The math is straightforward: demand from the rest of the world, particularly US hyperscalers and sovereign AI initiatives globally, has more than compensated for the China gap.

How steep is this rally, really?

Analysts have noted that even a potential pullback to $184 per share would represent only a 13% drop from recent highs.

What this means for investors

When a single company is worth $5.5 trillion, it exerts gravitational pull on index funds, pension allocations, and the broader market structure. Every S&P 500 investor is now, whether they like it or not, heavily exposed to Nvidia’s fortunes.

The crypto market has taken notice too. AI-related tokens and decentralized projects have been trading actively in line with Nvidia’s performance, though it’s worth noting that none of these tokens have direct revenue ties to Nvidia.

For the broader tech landscape, companies like Google, Amazon, and Microsoft have all been investing in custom silicon to reduce their dependence on Nvidia’s GPUs. None of them have succeeded in meaningfully denting Nvidia’s market share yet.

Washington has already demonstrated its willingness to restrict Nvidia’s sales to China, and Nvidia has navigated the current restrictions remarkably well.

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