Chip stocks in Asia plummeted on Thursday following reports that the U.S. may impose stricter export restrictions on advanced semiconductor technology to China. TSMC lost over $50 billion in market value over two days. The decline was exacerbated by U.S. Republican presidential nominee Donald Trump's remarks that Taiwan should pay America for its defense. Other major Asian tech companies also experienced losses. Analysts note that macro and geopolitical factors are overshadowing company fundamentals.