About 10.3 million Americans had an active 2017 health plan through the Health Insurance Marketplaces as of March 15, or 84% of those who selected a plan during open enrollment, according to a report released this week by the Centers for Medicare & Medicaid Services. About eight in 10 active enrollees received an advance premium tax credit and nearly six in 10 received a cost-sharing reduction. The report includes state and national data on active health plans, premium tax credits and cost-sharing reductions for both the 2017 and 2016 marketplaces. According to a separate report on enrollment trends, 2017 consumers who enrolled through HealthCare.gov and cancelled or terminated coverage were less likely to have financial assistance than those who maintained coverage.