Which carriers are bailing on ACA exchanges altogether in 2026?

Every year, even when the ACA is running smoothly, there are always changes in market participation, as different insurance carriers enter or exit the individual market in certain states or either expand or shrink what parts of the state they offer healthcare policies in.
2026 is no exception, and given the massive turmoil the ACA exchanges are undergoing right now (due primarily to the expiring federal tax credits as well as regulatory changes made by the Trump Regime's so-called "Integrity & Affordability Rule"), there's either 13 or 32 insurance carriers throwing in the towel in one or more states, depending on how you count a carrier operating in multiple states or under multiple subsidiary brandings.
It's important to keep in mind that the following list probably isn't comprehensive--it includes the carriers which I've confirmed are pulling out statewide (with one exception: Meridian Health Plan of Michigan is only pulling out of parts of the state). There's likely one or two that I've missed, especially given that several of these have only made their final decisions within the past week or so.
There's also likely numerous other carriers which, like Meridian in MI, are reducing their footprints in various states but not pulling out of them statewide. Those are much harder to track down since the list of counties being exited is usually buried inside the filing forms, whereas a whole-state exit is generally announced more prominently.
it's also important to note that while I have hard current enrollment numbers (in green) for most of the carriers exiting states, there are others where I had to make an educated guess (in grey) as to how many current ACA enrollees will be forced to scramble & find a different carrier for 2026.
Aetna/CVS and its subsidiaries alone, which are pulling out of all 17 states they currently participate in, make up over half the list as well as a good 3/4 of the enrollees below (around 1.6 million people total).
I want to give a shout-out to my friend & colleague Louise Norris who helped compile and double-check this list: