Super Micro Computer ($SMCI ) and Deckers Outdoor ($DECK (+0,03 %) ) are included in the S&P 500 ($SPY (+0,97 %) ), while Whirlpool ($WHR (+0,31 %) ) and Zion Bancorporation ($ZION (+1,78 %) ) will be withdrawn. These changes will take effect before the opening on March 18 effective.