UnitedHealth Group just announced they expect to lose $700 million in the Obamacare exchanges and are seriously considering withdrawing from the program in the coming year. Why is this happening? Because nowhere near enough healthy people are signing up to pay for the sick. The Robert Wood Johnson Foundation and the Urban Institute have come to largely the same conclusion—enrolling a total of 10 million in the exchanges, based on historic trends, would mean only about 9 million of them would be subsidy eligible. That would amount to only 38% of the 24 million people eligible for a subsidy.