QQQ trails SPY as tariff and AI updates frame a weaker session

QQQ opened 0.69% below the prior close and finished the session down 1.66%, while SPY opened 0.41% lower and ended down 1.08%. Housing and regional services data gave mixed macro signals before the open. Tariff policy, geopolitical developments, and NVIDIA product announcements supplied additional context as technology shares lagged the broader market.