Medical cost ratio, which measures how much of an insurer's revenue goes toward medical claims, is a number investors frequently scrutinize when analyzing an insurer's financial performance.
Here's the MCR — sometimes called medical loss ratio or benefit expense ratio — six payers reported in the three-month period ended June 30, from highest to lowest:
Anthem: 86.7 percent
Centene: 86.7 percent
Molina Healthcare: 85.6 percent
Humana: 84.4 percent
UnitedHealthcare: 83.1 percent
Cigna: 81.6 percent