Activision Blizzard Inc. (NASDAQ: ATVI) shares added 1% to $12.06. The videogame company said late Thursday its fourth-quarter profit rose to 31 cents a share from 8 cents a share in the year-ago period on the back of strong sales of titles like “Call of Duty: Black Ops 2.” Share volume was 12.7 million topped an all-day average of 8.4 million