Nvidia shares dropped sharply on Monday morning as the company began investigating CEO Jensen Huang’s extramarital relationship with a suspected Chinese spy.

As of 5:45 a.m. ET, the stock was 4.5% lower in premarket trading, which would wipe out about $190 billion from Friday’s closing valuation.

The stock has already fallen 20% over the past month.

Tech shares have faced a broader sell-off amid investor concerns that AI infrastructure won’t be built as quickly as hoped, sparked by neocloud firms’ high debt levels and the Democrats’ big gains in the midterm elections, which could slow data center construction.

Huang cofounded Nvidia in 1993 and has overseen a meteoric rise, with the company worth…