By Sophie Lindqvist

Nvidia shares were 4.5% lower in premarket trading (before the regular session opens) at 5:45 a.m. ET, a decline that would erase about $190 billion from Friday’s closing valuation. The sell-off followed reports of Huang’s affair with an executive whom US officials reportedly concluded was a Chinese intelligence asset, and a company investigation.

Shares had already fallen 20% over the preceding month, so Monday’s move intensified a broader retreat from technology shares. Investors question whether artificial-intelligence (AI) infrastructure (computing systems supporting AI workloads) can be built as quickly as expected. High debt at neocloud firms (companies renting cloud-computing capacity) and big Democratic midterm gains fuel fears that data-center construction could slow.

Against that backdrop, investors appeared to focus on Huang’s possible departure. Huang cofounded Nvidia in 1993 and led it through the AI chip boom that supercharged demand and left the company worth trillions, making his continuity central to the equity case.

Mohamed El-Erian wrote on X: “The so-called ‘key-man risk’ looms large here, and it’s doubtful markets have adequately priced it in. This will not be easy for the board to navigate.” Key-man risk means investors face exposure when a central leader departs or performs less effectively.

What do the revelations establish?

The New York Times reported in late October that American intelligence agencies had discovered Huang’s close relationship with Alice Huang, a Chinese citizen and executive at a Singapore-based data-center company. According to the report, US officials suspected that her company was steering Nvidia’s advanced AI chips to China and concluded that she was a Chinese intelligence asset.

At the time, a Nvidia spokesperson said Huang’s interactions with Ms. Huang were not unusual or unexpected. The statement did not address the reported intelligence assessment, and the available account did not describe any review of chip shipments or the executive relationship.

What did Huang and the board disclose?

On Sunday, Huang sent a note to staff acknowledging that he had been “unfaithful” to his wife, Lori Huang, whom he has married for more than 40 years. He wrote: “My actions hurt her and our children. There is no excuse for what I did.”

“I am deeply sorry. I support the investigation and will cooperate fully,” he added. Nvidia’s board opened an investigation into whether Huang was the target of a “foreign intelligence effort.”

The inquiry potentially reaches beyond marital misconduct: it tests whether a founder-CEO’s private relationship could expose Nvidia’s advanced chips and the company to an alleged foreign-intelligence operation. The board’s decision makes Huang’s conduct a governance matter as well as a personal one.

What does this change for Nvidia shareholders?

It adds governance and continuity risk to a valuation already under pressure from doubts about the pace of AI infrastructure construction. The immediate market trigger was personal misconduct, but the investment issue is whether the board can oversee Huang credibly and whether investors can price the possibility of his departure.

For now, the account announced no resignation, no board finding and no government charge. Those absences matter: the share-price move discounts risk before investigators establish facts, while reputation, leadership and chip-routing questions remain open.

Nvidia’s response—support for the investigation and Huang’s pledge to cooperate—does not resolve them. The practical conclusion for shareholders is narrower than a verdict on Huang: Monday’s 4.5% premarket decline showed that the market treats Nvidia’s founder continuity and board credibility as material financial risks, while the separate 20% monthly fall coincided with a broader technology sell-off.