The following video is from a very special Halloween edition of Investor Beat, in which host Chris Hill and Motley Fool analysts Tim Hanson and Matt Koppenheffer dissect the hardest-hitting investing stories of the day.

Facebook's (NASDAQ:FB) third-quarter results looked impressive on paper. Immediately after reporting last night, the stock soared more than 15%. But comments on the analyst conference call by Facebook's finance chief sent the stock in the other direction. In today's spooky lead story on Investor Beat, Tim and Matt discuss whether a decrease in daily use among younger teenagers is a real problem for Facebook and what growth levers the company can still pull from here.

Chris HillMatt Koppenheffer, and Tim Hanson have no position in any stocks mentioned. The Motley Fool recommends and owns shares of Facebook. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.