New Delhi, Nov. 9 -- Shares of US-based technology giant Nvidia witnessed renewed selling pressure in Monday's trade, falling 6% in pre-market trading to $176 apiece after the company's board launched an investigation into Chief Executive Officer Jensen Huang, following his admission of an affair with a woman identified in a series of reports as a suspected Chinese spy.

The shares had already faced significant volatility last week as concerns mounted over Big Tech's spending on AI infrastructure following the Democrats' sweeping victory in the US midterm elections.

This latest controversy has added another layer of uncertainty to the stock, which has been under pressure since hitting its peak and has declined 22% from that level. The de...