Health insurers such as WellPoint Inc. (WLP) and Humana Inc. (HUM) stand to gain $5.5 billion next year to cover losses from Obamacare in a program the law's opponents label a bailout. The money, outlined in President Barack Obama's proposed budget for the fiscal year that begins in October, is designated to help insurers who find the cost of the law higher than expected, based on the percentage of older, sicker people who sign up compared with younger enrollees. Under the Patient Protection and Affordable Care Act, insurers who record a profit of 3 percent or more on their Obamacare business would put some of the gains into a government-controlled fund.