This report highlights 10 key findings on the Medicaid managed care market, based on analysis of data included in the Kaiser Family Foundation's Medicaid Managed Care Market Tracker. The findings provide a partial profile of the Medicaid MCO market nationally and by state. They also illuminate the involvement of large, multi-state health insurance companies in the Medicaid market and the participation of these firms in other markets as well, including the managed long-term services and supports market, the new ACA marketplaces, and the Medicare Advantage market. Finally, these selected highlights serve to illustrate the array of ways the Tracker can be used to understand more about the Medicaid managed care market and its place in the broader market.