Key TakeawaysCentene posted better-than-expected results and boosted its guidance as it made more from premiums and services and increased members.The managed care provider's commercial marketplace revenue jumped 49% year-over-year.CEO Sarah London pointed to the company's diverse portfolio for the strong results. Centene (CNC) shares jumped in intraday trading Friday as the managed care provider reported better-than-expected profit and sales and raised its guidance as its premium and services sales and mem ...