Chip stocks fall as Nvidia, AMD warn of higher costs from China export controls

1. AMD faces potential $800 million revenue hit from new export controls. 2. Nvidia's 5% drop signals broader sector weakness impacting AMD. 3. Tariff uncertainties could stifle demand and growth across chipmaking. 4. The semiconductor sector shows signs of strain from U.S. trade policies. 5. AMD stock plunged over 5%, reflecting broader market declines.