Super Micro Computer ($SMCI ) and Deckers Outdoor ($DECK (+0,33 %) ) are included in the S&P 500 ($SPY (+0,09 %) ), while Whirlpool ($WHR (-1,42 %) ) and Zion Bancorporation ($ZION (+1,31 %) ) will be withdrawn. These changes will take effect before the opening on March 18 effective.