18 March 2017 - Over the last few years, big managed care companies like UnitedHealth Group have contributed to the furor over the fate of the Affordable Care Act by saying that important parts of it are fundamentally flawed.

But Obamacare hasn’t been a curse for the managed care companies. Over all, based on their share performance, it has been something of a blessing.

Since March 2010, when the Affordable Care Act was signed into law, the managed care companies within the Standard & Poor’s 500-stock index — UnitedHealth, Aetna, Anthem, Cigna, Humana and Centene — have risen far more than the overall stock index. This is no small matter: The stock market soared during that period.

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