Qualcomm shares fell on Friday after Chinese regulators said it would investigate the American tech giant's acquisition of chip firm Autotalks, ramping up tensions between the U.S. and China ahead of key meetings between the country's leaders this month. Shares were last around 3% lower in premarket trading. China's State Administration of Market Regulation (SAMR) said that Qualcomm is suspected of violating the country's anti-monopoly law in regards to its acquisition of Israeli firm Autotalks.