Micron faces $20 billion data center test as Korean supply risk grows
Nasdaq is open for trading Tuesday. The 2026 calendar shows the next market holiday is July 3 for Independence Day. Premarket runs 4 a.m. to 9:30 a.m. Eastern, with regular hours from 9:30 a.m. to 4 p.m. Eastern. Micron traded at $1,145.28, up $14.43 or 1.3%. But the best gains in the memory space didn’t go to Micron. The semiconductor ETF rose 4.0%, Western Digital jumped 11.2%, and Seagate added 7.6%.