US Memory Stocks Rise Aug 12, 2026; SK Hynix Up 4%, Western Digital 3%, Seagate, Micron Nearly 3%
On August 12, 2026, US memory-sector stocks rose broadly in pre-market trading. SK Hynix shares climbed more than 4%, Western Digital advanced over 3%, and Seagate Technology and Micron Technology each gained nearly 3%. The uptick across these major storage-chip names indicated solid demand for the sector ahead of the regular session, with all four companies trading higher.
US memory-sector stocks rose broadly in pre-market trading. SK Hynix shares gained more than 4%, Western Digital advanced over 3%, and Seagate Technology and Micron Technology each rose nearly 3%.