This week, analyst Joe Magyer singles out Garmin (NASDAQ:GRMN)as an overvalued stock. Although Garmin has some higher-end devices it sells for boats and airplanes, the main GPS business is in decline.

Jason Moser, meanwhile, brings up Whole Foods, which has room to grow geographically but at 43 times earnings, he says, is too richly valued.

Watch the following video for the full discussion.

Indeed, it's hard to believe that a grocery store could book investors more than 30 times their initial investment, but that's just what Whole Foods has done for those who saw the organic trend coming some 20 years ago. However, it may not be too late to participate in the long-term growth of this organic-foods powerhouse. In our brand-new premium report on the company, we walk through the must-know items for every Whole Foods investor, including the key opportunities and threats facing the company. We're also providing a full year of regular analyst updates to go with it, so don't miss out -- click here to start reading now.