Super Micro Computer ($SMCI (-0,06 %) ) and Deckers Outdoor ($DECK (-0,6 %) ) are included in the S&P 500 ($SPY (-0,4 %) ), while Whirlpool ($WHR (-0,12 %) ) and Zion Bancorporation ($ZION (-0,13 %) ) will be withdrawn. These changes will take effect before the opening on March 18 effective.