UnitedHealth Group (NYSE: UNH ) stock has been a dog lately, as it hasn't performed this poorly since 2008, but I think it's a dog worth petting. The last time I wrote about UNH was in October. II prefer to look for GARP (growth at a reasonable price) stocks but also look for opportunities everywhere else. I don't have a specified time horizon. I invest in a stock for as long as my thesis holds true, and I get out when the facts change. In addition, I've developed market-beating algorithms with Python that ...