Goodbye Abercrombie, hello Facebook Inc (NASDAQ:FB). S&P Dow Jones has announced that Facebook will be joining the S&P 500 and 100 indexes. S&P also said that Abercrombie & Fitch will be removed from the S&P 500. These changes will be reflected at the close of trading on Friday. Facebook shares are up over 30% since going public despite a rocky build up. Abercrombie will be joining the S&P MidCap 400. Facebook is going to replace The Williams Companies in the S&P 100 and Terdyne in the S&P 500, according to Forbes.