Super Micro Computer ($SMCI ) and Deckers Outdoor ($DECK (+1,81 %) ) are included in the S&P 500 ($SPY (+0,07 %) ), while Whirlpool ($WHR (-0,79 %) ) and Zion Bancorporation ($ZION (-0,58 %) ) will be withdrawn. These changes will take effect before the opening on March 18 effective.