Nvidia shares came under another round of selling pressure in Tuesday's trade, falling 6.3% to hit a seven-month low of $166.5 apiece, following a 4.3% decline in the previous session.
Investors appeared concerned about the chip giant's future prospects amid reports surrounding CEO Jensen Huang's alleged relationship with Chinese businesswoman Alice Huang, who has reportedly been identified as a Chinese intelligence asset.
As the CEO of the company at the heart of the AI boom, Huang's leadership and future at Nvidia are particularly important to investors. The latest sell-off comes just days before the company is scheduled to report its quarterly earnings on November 17.
The latest stock decline follows reports that Nvidia's board launched an internal investigation into Huang on Sunday after he reportedly admitted in an internal staff memo that he had been unfaithful to his wife and apologised to employees.
In addition, the FBI is reportedly examining whether the 63-year-old Huang was targeted as part of a foreign intelligence operation.