Since the Affordable Care Act health insurance marketplaces opened in 2014, there have been a number of changes in insurance participation as companies entered and exited states and also changed their footprint within states. Our earlier analyses of insurer participation and some notable company exits can be found here. Note that we consider affiliated insurers serving the same areas as one insurer.
In 2014, there were an average of 5.0 insurers participating in each state’s ACA marketplace, ranging from 1 company in New Hampshire and West Virginia to 16 companies in New York. 2015 saw a net increase in insurer participation, with an average of 6.0 insurers per state, ranging from 1 in West Virginia to 16 in New York. In 2016, insurer participation changed in a number of states due to a combination of some new entrants and the failure of a number of CO-OP plans. In 2016, the average number of companies per state was 5.6, ranging from 1 in Wyoming to 16 in Texas and Wisconsin.
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