Oscar Health's guidance raise shows improving operating leverage, the key test of whether its ACA growth can become durable profit. It lifted 2026 earnings from operations guidance to $600M-$800M from $500M-$700M while leaving revenue guidance unchanged at $18.7B-$19.0B, and improved medical loss ratio guidance by 50 bps to 81.0%-82.0%. The implied operating margin rises from about 3.2% to 3.7% without more revenue. ACA risk adjustment and medical-cost trends still need watching. x.com x.com