On June 21, 2017, health insurers have to decide whether they will sell coverage on the Obamacare marketplaces. “It will give us the first indication of what the ballpark rate increases are, what counties have insurers and which ones don’t,” says Robert Laszewski, an industry consultant who works with insurers that sell on the marketplace. “Insurers will have to make a statement.” The number of insurers selling on the marketplace fell significantly this year. There are 960 counties on Healthcare.gov that had just one health insurer selling coverage in 2017. That was a big increase from the 180 counties in the same situation in 2016.