Costco slips on margin concerns. Netflix hits an all-time high after the company announces a price hike. And General Motors reports some electrifying news. Plus, Chris talks about the business of popularity with Derek Thompson, author of Hit Makers: The Science of Popularity in an Age of Distraction. Thanks to Audible for supporting our podcast. Get a free audiobook with a free 30-day trial at audible.com/fool. Thanks to Bombfell for supporting The Motley Fool. Get $25 off your first purchase at http://bombfell.com/fool