Super Micro Computer ($SMCI ) and Deckers Outdoor ($DECK (-0,08 %) ) are included in the S&P 500 ($SPY (-0,33 %) ), while Whirlpool ($WHR (-2,91 %) ) and Zion Bancorporation ($ZION (+0,45 %) ) will be withdrawn. These changes will take effect before the opening on March 18 effective.