Nvidia shares fell approximately 2% pre-market Monday following news that China's State Administration for Market Regulation has launched an antimonopoly probe into the company. The investigation centers on Nvidia's acquisition of Mellanox and potential violations of China's antimonopoly laws. This news emerges amid heightened U.S.-China tensions over chipmaking capabilities. Nvidia shares have surged nearly 180% this year, driven by growing investor interest in AI technology.