NEW YORK (AP) -- S&P Dow Jones Indices LLC said Thursday that railroad operator Kansas City Southern will replace Dean Foods Co. on the S&P 500 Index.
Dean Foods spun off its WhiteWave Foods organic dairy unit late last year, and it also sold its Morningstar Foods warehouse delivery dairy business. S&P Dow Jones said Dean Foods Co. and WhiteWave Foods Co. will both be added to the S&P MidCap 400 Index. WhiteWave Foods will replace natural gas producer Quicksilver Resources Inc. on the midcap index.
The firm said Quicksilver was the smallest company included in the midcap index.
The changes take effect at the close of trading on May 23.