Standard & Poor’s received notification that the acquisition of Caremark RX by CVS Corp. (CVS-also in the S&P 500) is anticipated to become effective after the close of trading on Wednesday, March 21, not March 20 as originally announced. As a result, S&P MidCap 400 constituent Developers Diversified Rlty (DDR) will replace Caremark Rx in the S&P 500, CVS/Caremark Corp. (CVS) will replace Black & Decker (BDK) in the S&P 100, and Wellcare Health Plans (WCG) will replace Developers Diversified Rlty in the S&P MidCap 400 after the close of trading on Wednesday, March 21.