S&P Indices Announces Change to U.S. Index

NEW YORK, March 7, 2012 /PRNewswire/ -- Crown Castle International Corp. (NYSE: CCI) will replace Constellation Energy Group, Inc. (NYSE: CEG) in the S&P 500 index after the close of trading on a date to be announced. S&P 100 & 500 constituent Exelon Corp. (NYSE: EXC) is...

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