Chip investment and tariff negotiations frame a mixed session as SPY slips 0.24%

QQQ opened 0.46% above its previous close and finished down 0.06%, while SPY opened 0.22% higher and ended down 0.24%. QQQ therefore outperformed SPY by 0.17 percentage point. The session featured Samsung's $7 billion U.S. chip-packaging plan, a reported €40 billion EU AI-chip purchase intention, mixed labor and confidence data, and continued China tariff negotiations.