SoftBank unloaded $5.8 billion in Nvidia shares as part of a broader $40 billion bet on OpenAI, fueling fears of an AI bubble.

Japanese technology giant SoftBank says it has sold its stake in Nvidia, raising $5.8 billion to pour into other investments.

In the deal announced Tuesday, Nvidia and Microsoft will invest up to $10 billion and as much as $5 billion, respectively, in AI developer Anthropic ( ANTH.PVT ). Anthropic will buy $30 billion of compute capacity from Microsoft Azure, and Anthropic and Nvidia will collaborate on design and engineering, the companies said.

Investors worried about circular financing in the world of artificial intelligence got some more fodder this week, as Nvidia and Microsoft said they would invest in Anthropic, which plans to purchase chips from Nvidia and cloud capacity from Microsoft.

Stocks pared earlier gains and turned mostly lower Wednesday as investors awaited third-quarter earnings from chip maker Nvidia.These stocks were making moves:Nvidia rose 2.1% ahead of its earnings report scheduled for after the closing bell.

A historic capex surge, thin AI revenues, and extreme index concentration leave investors one disappointment away from a broad‑based equity shock.

During the first nine months of fiscal 2026, NVIDIA returned $37.0 billion to shareholders in the form of shares repurchased and cash dividends. As of the end of the third quarter, the company had $62.2 billion remaining under its share repurchase authorization.