Healthcare and Tech Lead SP 500 Higher as Broad Gains Offset Communication Services Weakness BPs Ousted Chairman Albert Manifold Rebuts Allegations Over Conduct Plug Power Inc PLUG Ranks Among Most Traded US Stocks Amid Hydrogen Sector Momentum China Trade Official Steps In as Commerce Minister Skips APEC Meeting Over Urgent Official Business Kevin Warsh to Be Sworn in as Federal Reserve Chair on Friday Traders Bet on IonQ Micron Anduril as Potential US Government Stake Targets After Quantum Investments