Max Nisen, Columnist

A CVS-Aetna Deal Is Logical But Also a Stretch

UnitedHealth is a possible model, but CVS lacks its expertise and balance-sheet power.
Photographer: Bloomberg/Bloomberg via Getty Images
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Health-care consolidation may get a whole new look.

CVS Health Corp. is reportedly considering a blockbuster buyout of health insurer Aetna Inc. There is a sort of reverse precedent for such a tie-up, with an insurer buying a pharmacy benefit manager (PBM). But there's never been a deal like this, where a company with no experience operating a major insurer would suddenly run one of the country's largest.