Super Micro Computer ($SMCI ) and Deckers Outdoor ($DECK (+0,25 %) ) are included in the S&P 500 ($SPY (+0,65 %) ), while Whirlpool ($WHR (+0,39 %) ) and Zion Bancorporation ($ZION (+0,32 %) ) will be withdrawn. These changes will take effect before the opening on March 18 effective.