JP Morgan believes shares of Tesla could fall 40% in the next 12 months.  Investor-At-Large Tim Hanson lays out a methodical, numbers-based case for what could trigger just such a scenario.  Plus, we talk holiday retail against the backdrop of Lululemon Athletica’s new 52-week high, as well as the Fool 100 Index. MarketFoolery’s holiday music festival continues with some help from The LeeVees.