美股存储板块盘前涨幅扩大，闪迪涨超4%

Odaily News: According to MSX.COM data, US-listed memory chip stocks extended premarket gains, with SK Hynix (SKHY.O) up nearly 4%, Western Digital (WDC.O) up 3.4%, Micron Technology (MU.O) up nearly 3%, and SanDisk (SNDK.O) surging over 4%.