U.S. President Donald Trump announced the resumption of blockades on ships passing through the Strait of Hormuz to Iran, causing oil prices to surge and leading to a 4.78% decline in the Philadelphia Semiconductor Index. AI chip leader NVIDIA dropped 3.52%, and TSMC ADR also declined 2.89%, contributing to the Taiwan stock market opening lower today.
Geopolitical tensions in critical shipping lanes directly translate to immediate downside for major AI chip and foundry stocks, increasing market volatility.