On Wednesday's edition of Investor Beat, host Alison Southwick and Motley Fool analysts Taylor Muckerman and Jason Moser take investors through the biggest stories from the market today.

MasterCard (MA -1.19%) delivers Christmas early for shareholders with a stock buyback and boosted dividend. Discovery Communications (DISCK) eyes acquiring Scripps Network (SNI). Costco (COST -0.55%) misses on earnings, but that's not the number to watch. And Joy Global (JOY) delivers a cringe-worthy earnings report. In this segment from today's Investor Beat, Jason and Taylor talk about the stocks making moves on Wednesday.