Super Micro Computer ($SMCI ) and Deckers Outdoor ($DECK (+2,38 %) ) are included in the S&P 500 ($SPY (+0,66 %) ), while Whirlpool ($WHR (-4,45 %) ) and Zion Bancorporation ($ZION (+0 %) ) will be withdrawn. These changes will take effect before the opening on March 18 effective.