GERMANY - 2026/01/08: In this photo illustration, the Humana Inc. logo seen displayed on a smartphone. (Photo Illustration by Igor Golovniov/SOPA Images/LightRocket via Getty Images)SOPA Images/LightRocket via Getty ImagesHumana stock plummeted 21% on January 27. Humana is a "pure play" on Medicare Advantage—around 85% of their operations. Following CMS’s announcement of a 0.09% rate increase for 2027, HUM experienced greater losses than any other company. Humana ranks as the second-largest MA provider (17% ...