The Chip Maker Behind AI Becomes the First Company Worth $4 Trillion

Nvidia crossed $4 trillion in market value, a milestone no company had reached, on continued demand for the chips that run AI. Eighteen months earlier it had been worth a quarter of that.

Nvidia became the first company in history worth $4 trillion today, its stock rising enough during the session to cross the line before easing back near it. No company had ever been valued that highly. The chip maker had passed $1 trillion in mid-2023, $2 trillion in early 2024, and $3 trillion later that year; the fourth trillion took about thirteen months.

The engine is unchanged and undiminished: Nvidia's chips remain the ones nearly every company building or running AI must buy, and the buildout has not slowed. The tech giants — Microsoft, Google, Amazon, Meta — are collectively spending hundreds of billions of dollars a year on data centers, and a large share flows to one supplier. Governments have joined the buying. The Stargate project announced in January, and its imitators abroad, are in the end orders for chips.

The number invites the same question it has at every trillion: can it hold? Nvidia's valuation assumes the AI boom keeps compounding and that no rival — the cloud companies' in-house chips, AMD, Chinese alternatives — breaks its hold. It also assumes the buildout is justified by AI products that, so far, earn far less than the hardware to run them costs. A company this large has become a bet on the entire industry's future, concentrated in one stock.

For now the bet holds, and $4 trillion is the market's verdict on it. Whether that verdict is wisdom or mania is the argument that has run beneath every one of these milestones, and it gets louder as the number does.