Nvidia CEO resigns over spy-linked affair as Lutnick agrees to testify on China chip sales

What happened

Jensen Huang has resigned as chief executive of Nvidia, shortly after admitting to an affair that came under scrutiny because the woman involved was reportedly assessed to be a Chinese spy.

The matter has widened to include the administration. Commerce Secretary Howard Lutnick is reported to have agreed to testify before the Senate Banking Committee about chip sales to China. Treasury Secretary Scott Bessent criticised the "leakage" of Nvidia chips to China and pointed to Lutnick's Commerce Department as the body responsible for export oversight.

Why it matters

Nvidia is among the largest weights in the main US equity benchmarks, so leadership change and governance questions at the company can move index-level pricing as well as the shares of its suppliers and peers. Semiconductor export controls also sit at the centre of US-China trade policy, and disputes between senior officials over who enforces them can feed uncertainty about future licensing decisions for chip sales.

When political risk attaches to a dominant index constituent, the effects tend to spread. Equity volatility can reach the dollar through risk sentiment and expected capital flows, while investors sometimes shift toward assets such as gold during periods of policy and governance uncertainty. Congressional testimony adds a scheduled event that markets watch for signals on how strictly technology exports will be controlled.

What to watch

The main scheduled item is Commerce Secretary Lutnick's reported testimony before the Senate Banking Committee on chip sales to China, together with any further comment from Treasury Secretary Bessent on export enforcement and from Nvidia on its leadership.