Why Is agilon health ( $AGL ) Stock Down -14.18% Today? (Find out why any stock moved today on Tickeron.) Shares of AGL fell roughly 14.18% to about $72.57, down from a prior close of $84.56. Primary catalyst: an analyst downgrade to Sell citing valuation concerns after a massive 2026 rally. Secondary driver: a law firm investigation into potential false statements about the company's medical costs. $STLN $LFST $NUTX $ASTH