"Health insurers arguably have the biggest financial stake in the exchanges' success. They are the ones who are selling products on the new marketplaces, and who would have to bear the costs of covering a sicker-than-expected exchange population. But even after a troubled launch, and with early enrollment shaping up to be lower and older than expected, plan executives generally cite two reasons they're not panicking -- and not pulling out of the exchanges after year one.... [M]any approached 2014 as a test year for the Affordable Care Act and participated in only a handful of exchanges to test the waters.... And even as the health exchanges grow, they will likely still remain a smaller part of a health plan's business."

MORE >>