Few laws have been more controversial than the Patient Protection and Affordable Care Act, also known as Obamacare, and last week, the government released early enrollment figures for the health-insurance exchanges that became available on Oct. 1. As many had predicted, the Obamacare enrollment numbers weren't as high as the government had hoped, with just a fraction of those expected to sign up actually having completed the process.

In the following video, Dan Caplinger, The Motley Fool's director of investment planning, looks at the early figures on Obamacare enrollment. He notes that although the problems plaguing the federal marketplace website held down enrollment in many states, key state sites such as California had better results. Yet with an estimated 7 million people expected to sign up for Obamacare coverage eventually, the early numbers still look discouraging. Dan goes on to discuss the potential impact on health insurers, and why WellPoint (NYSE:ANTM) might find itself in a bind compared to rivals UnitedHealth Group (NYSE:UNH), Aetna (NYSE:AET), and Humana (NYSE:HUM).