Shares of Super Micro Computer (SMCI), or Supermicro, tumbled 8.6% on Feb. 5, erasing most of its post-earnings gains amid a broader market stumble. A day earlier (Feb. 4), Super Micro stock surged 13% after the server maker reported better-than-expected earnings and revenue for the fiscal second quarter ended Dec. 31, 2025. Super Micro is a California-based server maker that also provides server management software and storage systems for enterprise data centers, cloud computing, and artificial intelli ...