Open enrollment would run from November through Dec. 15, and states would have control over the size of an insurance plan's network.
In the wake of Humana's comment, President Donald Trump tweeted that the insurer's decision was another example of Obamacare's failure.
Last week, a federal judge blocked the deal, saying it would lead to higher prices and reduced competition.
Humana releases its guidance after calling off its merger with Aetna. Also, Cigna sues Anthem, seeking reverse termination fee. CNBC's Bertha Coombs reports.
Health insurer Aetna and rival Humana say they have mutually ended their $34 billion merger agreement.
CNBC's Bertha Coombs reports the latest on Aetna and Humana ending their merger agreement after a court sided with the Justice Department objections to the combination.
Humana, Aetna, Credit Suisse, and Popeyes stocks are making headlines this Valentine's day.
Aetna and Humana announce that their proposed merger agreement has been mutually terminated.
Anthem will appeal a federal court ruling rejecting its $54 billion merger with Cigna and asked for an expedited hearing to make its case.
Is the end near for the Anthem-Cigna deal? CNBC's Bertha Coombs reports on where the deal currently stands.
A federal judge ruled against U.S. health insurer Anthem's proposed $54 billion merger with smaller rival Cigna.
The ruling marks another victory for anti-trust officials, who sued the companies in July last year to stop the deal.
Some of the names on the move ahead of the open.
Aetna Chief Mark Bertolini also said the insurer is weighing its options after a judge blocked its proposed $37 billion merger with Humana.
The No. 3 U.S. health insurer's total revenue rose about 5 percent to $15.73 billion but was below expectations.
With hopes for megamergers dashed and Obamacare-fueled growth in question, investors need answers from health insurers.
Aetna officially responds to the judge's decision to block the Aetna-Humana merger.
The judge in the Aetna-Humana merger case rejects the proposed merger, saying it would be anti-competitive, CNBC's Bertha Coombs reports. The "Fast Money Halftime Report' traders weigh in.
The judge says the agreement is anticompetitive and would substantially lessen competition.
CNBC's Dominic Chu reports that according to Dow Jones a judge will move to block the merger between Humana and Aetna for being anti-competitive.