Semiconductor shares fell sharply Thursday as markets reversed course following Wednesday's brief rally. The sell-off was led by notable declines in Broadcom (NASDAQ:AVGO) and Nvidia (NASDAQ:NVDA), both of which had gained more than 10% the previous day after President Donald Trump announced a 90-day pause on most international tariffs.

By midday, Broadcom shares had dropped more than 7%, while Nvidia was down over 5%. The pullback came despite reports that the White House is no longer considering a full ban on Nvidia's H20 GPUs to Chinaan option previously under review.

The downturn extended across the chip sector. Advanced Micro Devices (NASDAQ:AMD) and Texas Instruments (NASDAQ:TXN) both slid more than 8%, while Intel (NASDAQ:INTC) dropped roughly 7%. Marvell Technology (NASDAQ:MRVL) declined over 12%, and Qualcomm (NASDAQ:QCOM), Micron Technology (NASDAQ:MU), and Analog Devices (NASDAQ:ADI) each lost more than 6%.

The Philadelphia Semiconductor Index (SOX), which tracks major names in the sector, declined by around 8.5%, mirroring the broader weakness in component stocks.

Analysts warn the renewed trade tensions and supply chain disruptions may prompt several chipmakers to withhold earnings guidance for the upcoming quarter. The sector remains particularly vulnerable to policy shifts, especially as companies weigh long-term hardware sourcing and geopolitical risks.