Ratings outlook 'stable' for health insurance industry despite uncertainty

Court grants Anthem's request for speedy appeal of ruling against Cigna acquisition

Anthem hits Cigna with suit seeking restraining order

Cigna ends merger with Anthem, sues for more than $14B

Aetna, Humana end merger agreement

Blocked insurer mergers: What the decisions mean and what lies ahead

Judge rules against Anthem-Cigna merger

Aetna CEO: ACA has not achieved its intended goals