Drawing closer every minute is the monumental start date of the state insurance marketplace, which is one of the main features to Obamacare. Starting October 1st, people can go onto the marketplace and begin enrolling in health plans. However, for a few big name insurers, there is too much unknown risk associated with the marketplaces. Aetna, United Healthcare, and Cigna have started calling it quits by pulling out of select state marketplaces.