When the venture was announced, investors sent shares of health insurers and pharmacy-benefits managers lower.
The companies announced in January that they were forming the venture to improve employee health care.
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Insurers Figured Out How to Make a Profit in Obamacare Last Year
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Walmart and health insurer Humana may be facing different threats with the same solution.
Walmart Is Said to Be in Early Talks With Humana, WSJ Reports
Aetna Will Pass Along Discounts as Drug Price Scrutiny Increases
Centene Hasn't Fixed Obamacare Plan Doctor Shortage, State Says