Saturday's closed market brings HBM, power-grid and preparedness updates

U.S. markets were closed, leaving QQQ and SPY unchanged. The day's headlines centered on HBM4 production plans, power supply for AI data centers, and corporate security responses at Amazon and OpenAI. Budget deadlock and renewed government-shutdown risk added a policy counterpoint.

Published Aug 26, 2026

QQQ: 0.00%
SPY: 0.00%
QQQ − SPY: 0.00%

What shaped the session

AI infrastructure

SK Hynix advanced its HBM4 production plan, while proposed federal grid control and aircraft-engine-derived turbines highlighted efforts to secure power for AI data centers.

Corporate security

Amazon reported blocking more than 1,800 suspected North Korean applicants using fake identities, while OpenAI sought a preparedness leader for mental-health and cybersecurity risks.

Budget and shutdown risk

Trump said the midterm-election focus would be on prices and pointed to another shutdown risk as the two major parties remained divided over budget issues.

Key news

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