Essex Property Trust (ESS) +2.2% AH on news it will replace Cliffs Natural Resources (CLF) in the S&P 500 after the close of trading April 1.
CLF will move down to the S&P MidCap 400, replacing ESS.
FEI Co. (FEIC) will replace BRE Properties (BRE), which is being acquired by Essex, in the MidCap 400, and Fabrinet (FN) will replace FEI in the S&P SmallCap 600.
Also, Albany Molecular Research (AMRI) will replace Supertex (SUPX), which is being acquired, in the SmallCap 600.
AMRI +4.2%, FEIC +2%, FN +1.5%, CLF -1.3% AH.