As most people know by now (well, most people in Tennessee, anyway), Humana decided a full two months ago to bail on the entire individual market, across the board--every state, both on and off the exchange, the works. This stung in quite a few counties across 11 different states, but the one which everyone is freaking out about is Tennessee...because there are 16 counties where Humana was the only carrier participating on the ACA exchange. Here's the list of Tennessee counties Humana is available in this year; note that there's an additional 14 counties where there's one other carrier available at the moment.
...and then went on to conclude that, given the insane amount of uncertainty and confusion about what Donald Trump, Tom Price and the Congressional GOP in general has in mind for the 2018 insurance market, on top of normal stuff like inflation, an aging population and so on, that there are five likely scenarios:
Now, put yourself in the position of an insurance carrier executive and/or one of their actuaries. The level of uncertainty in the air is mind boggling. You have five choices for your initial filing: