As of June 22, 2026, six carriers have announced that they will exit the ACA Marketplaces in plan year 2027, either in some or all states that they are currently offering plans; four carriers have announced they will enter new state Marketplaces. These changes in insurer participation follow the expiration of the enhanced premium tax credits at the end of 2025, which drove sign-ups to fall by over a million from the 2025 to 2026 Open Enrollment Periods—with further membership declines in the ACA Marketplaces expected as the year progresses. ACA Marketplace enrollment declines affect the size of the potential market for insurers, and, potentially, the risk pool—to the extent that healthier than average enrollees are more likely to drop coverage. ARTICLE
