With Memory chips (DRAM) down 6.1%, this looks like a sector-led move rather than a company-specific surprise.

Memory chip stocks are experiencing a significant downturn in the pre-market session, caught in a wider global semiconductor sell-off. The negative sentiment appears to be fueled by the market's reaction to Taiwan Semiconductor Manufacturing Co.'s (TSMC) latest earnings report. Despite strong results, concerns over future profit margins have led to a drop in TSMC's shares, impacting the broader chip sector. Adding to the pressure, specific news regarding SK Hynix seeking U.S. approval for equipment exports to its China facility has introduced geopolitical uncertainty. This combination of a negative reaction to a key industry bellwether's earnings and company-specific geopolitical concerns is driving the sharp decline.