In this video, health care analyst David Williamson discusses recent JPMorgan upgrades for managed care company Humana and fellow Medicare Advantage insurer UnitedHealth. 2013 looks to be a pretty banner year for insurers, but the 2014 rollout of Obamacare hangs over them like a dark cloud. Find out why JPMorgan thinks that despite pessimism these companies are poised to do much better than the market expects.

Follow David on Twitter: @MotleyDavid.