Shareholder Sues Nvidia and Jensen Huang Over Undisclosed Relationship as Chip Index Jumps 7% and Nvidia Falls 4.3%

Since Nvidia's board announced an independent investigation on Sunday, Nov. 8, the fallout has moved from the markets into the courts. A shareholder has sued the company and its CEO.

The lawsuit

Mark Kistenmacher filed a proposed class action in San Jose, California, on Monday, shortly after the market closed. The Rosen Law Firm is representing him.

The complaint alleges Jensen Huang did not disclose his relationship with Alice Huang, a former top executive at the Singapore-based data center company Megaspeed. She is not related to him. Megaspeed buys Nvidia chips.

The suit also alleges that the company's misleading statements "artificially inflated" Nvidia's share price. "As a result of [Nvidia and Huang's] wrongful acts and omissions, and the precipitous decline in the market value of the Company's securities, Plaintiff and other Class members have suffered significant losses and damages," the filing says.

These are allegations in a complaint. Nothing has been proven in court.

The suit lands against Huang's own words. Last month he told Bloomberg that his relationship with Alice Huang was "related to Megaspeed, and it was all completely normal and not unusual." On Sunday he said in a statement: "I was unfaithful to my wife. My actions hurt her and our children. There is no excuse for what I did." He did not directly address the allegation that the relationship was part of a Chinese intelligence operation.

Nvidia's position

The board has said it "has no reason to believe that either national security or NVIDIA secrets were compromised," while its inquiry will "examine all available information." Huang told staff he is "committed to protecting NVIDIA and supporting America's national security."

President Trump has defended him. At a surprise press briefing Monday evening he said the FBI is "looking into it in terms of something else, and I think that he'll be in good shape." He added: "He said, 'I had no idea that she was a spy,' and I really, and I really believe him." On Sunday, Trump said he believes Huang should stay on as CEO.

The spy allegation comes from The New York Times, which reported that U.S. intelligence determined Alice Huang was gathering information for China. China has denied the spying claims.

Commerce probe questions

The Times also reported Monday, citing current and former government officials, that a Commerce Department investigation into Megaspeed was halted after Nvidia general counsel Tim Teter contacted investigators. According to the Times, Teter told them their boss, Jeff Kessler, had given him permission to ask about the probe, which centered on whether Megaspeed was smuggling Nvidia AI chips into China.

Some officials viewed that contact as a breach of government procedure that could have tainted the case, the Times reported. The case moved to the Justice Department late last year, and the Times' sources say DOJ is running a criminal inquiry into Megaspeed. Nvidia has not been charged with anything, and no charges against any individual have been announced.

Republican lawmakers have asked Huang to brief the House foreign affairs and intelligence committees behind closed doors next week on Nvidia's "security protocols against foreign adversary espionage" and his relationship with Alice Huang.

Nvidia alone in the red

Monday's market made the split stark. The Philadelphia Semiconductor Index jumped about 7% after falling more than 12% the week before. The Nasdaq-100 rose 3.4%. The S&P 500 gained 2.35%, its best day since April, and the Nasdaq Composite rose 2.7%.

Nvidia fell as much as 8.8% shortly after the open and closed down roughly 4.3%. It was the only stock in the semiconductor index to decline. The drop erased about $190 billion in market value. The shares are down 25% from their peak a month ago and have given back their 2026 gains.

Analysts split the blame. Kelvin Wong of OANDA said the broader rally was helped by easing geopolitical tension and lower oil prices, and that Nvidia's slide reflected company-specific concerns. Chong Yik Ban of Phillip Securities called the rebound a "relief rally" and said Nvidia's dependence on Huang "poses a significant key-person risk." Patrick O'Hare of Briefing.com said investors were penalizing Nvidia for the uncertainty but did not appear to expect wider consequences for the tech sector.

Citi analysts wrote that investors need to know whether the board's investigation turns up anything serious enough to threaten Huang's role, and whether regulators could constrain chip sales.

CNBC's Mike Santoli pointed to heavy institutional selling and an oversold Nasdaq-100 as reasons a bounce was plausible. John Kolovos of Macro Risk Advisors called the tech sector's condition "bad oversold," meaning rebounds can fail to mark a lasting low.

What comes next

The next scheduled market test for the group is Thursday, Nov. 12, when Applied Materials and Cisco report earnings after the close. For Nvidia, the open items are the board's inquiry, the FBI matter Trump referenced, the closed-door congressional briefing next week, and whether Nvidia answers the shareholder suit with a motion to dismiss.