TSM is trading at 5.52% down now at $283.33 after the US government revoked export waivers allowing TSMC to use US-origin technology in China, heightening regulatory uncertainty and supply chain risk. This move, combined with China's new rare earth export restrictions, has raised concerns about potential disruptions to semiconductor production and technology transfers. While analysts note that the immediate financial impact on TSMC is limited due to its relatively small exposure to China, the news has triggered a significant sell-off as investors weigh the broader implications for the global chip supply chain. The drop also comes despite TSMC reporting stronger-than-expected Q3 sales, indicating that regulatory and geopolitical risks are currently overshadowing operational performance.