On Monday's edition of Investor Beat, host Alison Southwick and Motley Fool One analyst Jason Moser take a look at the hardest-hitting investing stories on the market today.

McDonald's (NYSE:MCD) misses on same-store sales estimates for November, but is the short-term reason an ultimately great long-term business decision? Tech titans Twitter (NYSE:TWTR), Apple, Google, Facebook, and LinkedIn wrote a joint open letter to Congress about government access to online data, but only Twitter saw a stock bump today. And Abercrombie & Fitch's (NYSE:ANF) controversial CEO is sticking around, despite investor outcry. In this segment from Investor Beat, analyst Jason Moser discusses the stocks making moves on Monday.