Small insurers devastated by big corporations in Obamacare state exchanges

Insurance companies with a small share of the health insurance market have virtually disappeared from Obamacare state health care exchanges, replaced by big-foot carriers that have traditionally dominated the market, according to a congressional watchdog study.

The U.S. Government Accountability Office found in a study made public earlier this week that in 40 states the largest insurers either maintained or boosted their market share through the health exchanges established by the Affordable Care Act. The GAO analysis is the first federal study published focusing on how competition within the health insurance market has been affected by Obamacare.