Super Micro Computer ($SMCI ) and Deckers Outdoor ($DECK (-1,52 %) ) are included in the S&P 500 ($SPY (+0,57 %) ), while Whirlpool ($WHR (-2,91 %) ) and Zion Bancorporation ($ZION (+0 %) ) will be withdrawn. These changes will take effect before the opening on March 18 effective.