The company is a powerhouse in its sector, and has weathered numerous challenges recently.This is the time of year when market professionals and investors alike pore over lists of top analyst stock picks. One big company that appeared in such a lineup was UnitedHealth (UNH +2.03%), and in the process, its shares received a price target boost. That helped lift the stock by 2% on Tuesday. A healthy adjustmentThe UnitedHealth bull in this case is Bernstein SocGen's Lance Wilkes. Tuesday morning before market o ...