存储概念股SanDisk盘前转跌，此前一度大涨超12%

Core Viewpoint - Storage concept stocks experienced volatility, with SanDisk initially rising over 12% before turning negative in pre-market trading [2] Company Performance - SanDisk saw a pre-market decline after a significant rise [2] - Western Digital's stock fell over 2% [2] - Seagate Technology's shares dropped nearly 2% [2] - Micron Technology's stock decreased by over 1% [2]