Centene shares fell sharply on July 23, 2026, following new regulatory challenges to its Medicaid business.
The Centers for Medicare & Medicaid Services proposed a plan to limit provider taxes. Federal authorities also froze over $1 billion in Medicaid payments to California and Minnesota.
These developments raised sector-wide concerns regarding the profitability of government-sponsored health insurance. This sell-off occurred ahead of the company's second-quarter earnings release on July 28.