Among A Raft Of Index Changes, Affiliated Managers Group To Join S&P 500 By: Benzinga via Benzinga June 26, 2014 at 16:31 PM EDT The S&P Dow Jones Indexes unveiled changes earlier this week to the S&P 500, S&P MidCap 400 and S&P SmallCap 600 ... Read More >> Related Stocks: Actavis Plc Affiliated Managers Group Belden Inc Greenhill & Company Inc International Paper Intrepid Potash Inc Jakks Pacific Inc Lasalle Hotel Properties Sentinelone Inc Cl A Spartan Motors Inc Timken Company