Nvidia Loses $430bn as Board Hires Prosecutor Joon Kim for Spy Probe

Nvidia has lost roughly $430 billion in market value since a spying scandal engulfed the company last weekend, and its board has now hired a former top federal prosecutor to investigate. The world's most valuable company announced overnight that it has retained Joon H. Kim, former acting U.S. Attorney for the Southern District of New York, and his firm Wachtell, Lipton, Rosen & Katz to conduct what the company calls "a thorough and independent investigation."

The probe centers on chief executive Jensen Huang's personal relationship with a woman US officials believe is a Chinese spy. The relationship is thought to involve Alice Huang, who worked for Nvidia customer Megaspeed. Beijing has denied operating any espionage operation targeting the Nvidia CEO, but the denial has done little to steady the stock.

How much has Nvidia actually lost?

The numbers are stark. Nvidia shares fell almost 5.5% on Wednesday, closing at $168.89, on top of a 4.27% drop on Monday. Those two sessions pulled the company's market capitalization down to $4.07 trillion from $4.50 trillion before the story broke. For a company whose valuation rests on investor confidence in a single founder-CEO and on continued access to Chinese markets, that is an unusually damaging combination.

Waleed Said, a technical analyst at brokerage GivTrade, framed the episode in blunt terms: Nvidia's "5.47% decline to $168.89, extending its losses for a second consecutive session, has transformed an executive controversy into a test of institutional confidence. Approximately $430 billion in market value has reportedly disappeared across the two sessions as investors confront allegations involving CEO Jensen Huang's personal relationship with a businesswoman suspected of connections to Chinese intelligence."

Said noted the structural problem plainly: "Nvidia's extraordinary valuation depends partly on confidence in Huang's leadership, making executive continuity and China-related export exposure unusually consequential." In plain words: if investors doubt the CEO or the China business, the trillion-dollar premium is at risk.

Who is investigating — and what will they examine?

Wachtell, Lipton, Rosen & Katz is a heavyweight corporate law firm, not a boutique. In 2022 Twitter hired it to force Elon Musk to complete his $44 billion takeover of the platform, and the firm has a long track record advising major companies on mergers and corporate governance. Nvidia's independent directors chose it deliberately, tasking the team — including Joon Kim — with examining whether Huang's relationship involved foreign intelligence activity or compromised company information.

One caveat deserves emphasis. The allegations remain under investigation, and Nvidia says it has no reason to believe secrets or national security were compromised. That statement is the company's position, not an independent finding; the Wachtell probe exists precisely to test it. Nothing in the public record yet establishes what, if anything, was shared.

What does the shareholder lawsuit allege?

Shareholders are already moving. A lawsuit filed in California this week alleges that Nvidia and Jensen Huang misled shareholders by failing to disclose that the matter raised national security concerns. The claim turns on disclosure, not espionage: the plaintiffs argue investors should have been told earlier that the CEO's personal conduct carried national-security implications.

This week's share-price slide may embolden those suing the company. A falling stock gives plaintiffs a concrete loss to point to, and every additional red session strengthens the argument that the information was material to investors. The lawsuit is at an early stage, and no court has ruled on the merits.

Why is this a diplomatic problem too?

The affair has reached the top of the US-China relationship. Ambassador David Perdue, the top US diplomat in China, told Bloomberg Television that the Nvidia situation is straining an already difficult bilateral economic relationship.

"The situation with Nvidia is another reminder that we have to stay diligent," Perdue said. "National security is part of this economic conversation because economic security is national security. And so, what we're doing with China is bumpy right now."

That framing matters for Nvidia specifically. The company's chips sit at the center of US export controls on China, and any allegation of Chinese intelligence access to its chief executive invites exactly the kind of scrutiny Washington has applied to the semiconductor supply chain for years. Beijing's denial, meanwhile, signals the episode is now a bilateral issue rather than a private corporate matter. In plain words: the investigation's findings could ripple into trade policy, not just the share price.