The healthcare sector moved higher, largely driven by strong performance in managed care companies. Humana (HUM) shares surged over 16% in pre-market trading after receiving an upgrade from Baird, which cited a significant recovery in the company's Medicare Advantage quality ratings for 2027. Additionally, UnitedHealth Group (UNH), a major component of the sector, rose 4.4% on positive sentiment and institutional positioning ahead of its earnings report. This bullish sentiment in managed care appears to be the primary catalyst, offsetting negative news from smaller players like Alignment Healthcare (ALHC), which saw its stock fall sharply after a downgrade in its own Medicare Advantage ratings. The broader market was also positive, but the outperformance in healthcare is directly linked to these industry-specific developments.