Dillard's, BlackRock climb while Facebook and Aflac tumble

Dillard's, BlackRock climb while Facebook and Aflac tumble

Stocks that moved substantially or traded heavily Friday:Dillard's Inc. up $4 to $70Department stores and other retailers rose after the Commerce Department said retail sales climbed in December.Facebook Inc., down $8.40 to $179.37The social media site says it's making changes that will show users fewer posts from brands and fewer videos.BlackRock Inc., up $17.61 to $555.53The investment bank had a strong fourth quarter than analysts expected.Aflac Inc., down $6.75 to $84.94The Intercept repo...