On Wednesday evening, Nvidia shares were enjoying a good day. They closed up 2.9% at $173.73, narrowing the company's market-value loss since Friday to $311bn.
Then the news cycle turned. Reports in the Wall Street Journal and the New York Times that Jensen Huang had a second affair, this time with an executive who reports to him, sent the stock down by more than 8% in extended trading. The company's response has been to outsource its own scrutiny. Nvidia's board has hired Wachtell, Lipton, Rosen & Katz, one of America's most prestigious corporate law firms, to run what it calls a "thorough and independent" investigation.
The work will be led by Joon Kim, a former New York prosecutor who specialises in internal investigations and white-collar defence, and overseen by a committee of independent directors. No timeframe has been given. Huang, the board says, will keep running the company "without interruption". The central allegation is that Huang had a relationship with Alice Huang, a Chinese citizen and Nvidia customer who is no relation to him and who is alleged to be a spy.
Nvidia first denied any improper relationship, but Huang then admitted on Sunday that he had been unfaithful to his wife, without naming anyone. The company also said it was examining reports that he had been the target of a "foreign intelligence effort".