QQQ and SPY edge lower amid China-policy and Ukraine-deal updates

QQQ opened 0.10% higher but finished 0.12% lower, while SPY opened 0.01% higher and ended 0.07% lower. SPY outperformed QQQ by 0.05 percentage points. Chinese hard-technology funding and defense-company sanctions, together with two Ukraine-negotiation updates, provided the day's main context. The selected headlines were followed by moves of less than 0.10% in both ETFs over the next 15 minutes.