"Insurers attempting to price their plans and determine which states and counties they will service next year face a great deal of uncertainty."

An Early Look at 2018 Premium Changes and Insurer Participation on ACA Exchanges

"Insurers attempting to price their plans and determine which states and counties they will service next year face a great deal of uncertainty. They must soon sign contracts locking in their premiums for the entire year of 2018, yet Congress or the Administration could make significant changes in the coming months to the law – or its implementation – that could lead to significant losses if companies have not appropriately priced for these changes. Insurers vary in the assumptions they make regarding the individual mandate and cost-sharing subsidies and the degree to which they are factoring this uncertainty into their rate requests."