The health-insurance provider is reckoning with multiple threats to its business, potentially leaving it with fewer and less-healthy enrollees signed up to its health-insurance plans.

By Christy Santhosh (Reuters) -Centene shares closed at an eight-year low on Wednesday, marking their largest single-day plunge, after the U.S. health insurer withdrew its 2025 earnings forecast due to an expected revenue slump from commercial plans under Obamacare.

Centene’s stock suffers a historic plunge as underestimation of healthcare costs leads the insurer to withdraw its full-year earnings outlook.