Opening losses flip to 0.5% gains as ISM and Fed signals frame the session

QQQ and SPY opened 0.62% and 0.35% below the previous close, then finished up 0.52% and 0.49%, with QQQ ahead by 0.02 percentage points. ADP employment topped estimates, while January ISM services activity missed expectations. OpenAI's rollout and Fed tariff-inflation remarks accompanied intraday strength, while AMD's weaker data-center guidance tempered the technology backdrop.