Monday wasn't a very good day for health insurers, and if a day's not good for health insurers you can bet Cigna Group (CI -5.49%) stock took it on the chin. The blow came from the highest levels of government, spooking investors and driving down the stock prices of numerous healthcare-institution stocks. Cigna's share price eroded by more than 5%, on a day when the S&P 500 index rose by over 3.2%. A talking-down from Trump PBMs on the hot seat Fairly or otherwise, PBMs have been sharply criticized by many ...