Super Micro Computer ($SMCI ) and Deckers Outdoor ($DECK (+1,91 %) ) are included in the S&P 500 ($SPY (+1,59 %) ), while Whirlpool ($WHR (+1,48 %) ) and Zion Bancorporation ($ZION (+3,82 %) ) will be withdrawn. These changes will take effect before the opening on March 18 effective.