Because of Obamacare, more and more people will sign up for health insurance. When you have that many more millions of customers, it is better for the insurance companies. Not only that, there is now more competition among insurance companies because of Obamacare, and that always drives growth for the most part.
In the long run, Obamacare is going to be seen as beneficial to both consumers and to insurance companies. While certain things like lifetime limits and denials based on pre-existing conditions are no longer allowed, the companies got a huge bone. And that bone would be in the form of everyone being required to have and pay for health insurance.
Insurance companies now have larger customer bases and more premiums to invest. Of course the Affordable Care Act benefits insurance companies because the tens of millions of people without insurance are now required to have it. More customers means more services and more co-pays to bring in. More customers also means more profits.
The Affordable Care Act, also know as Obamacare, is not going to prove beneficial to insurance companies. While there will likely be more people enrolled, the part of the law regarding pre-existing conditions puts the insurance companies in a situation where their patient expenses are going to be out of their control, since they can no longer deny coverage.
No, I do not think that this new form of health care reform is good for insurance companies. I think that it will hurt them in the long run, because the government will be able to control the companies prices and they will keep them under control from getting out of hand.