Super Micro Computer ($SMCI ) and Deckers Outdoor ($DECK (-0,41 %) ) are included in the S&P 500 ($SPY (+0,93 %) ), while Whirlpool ($WHR (-1,58 %) ) and Zion Bancorporation ($ZION (+0,23 %) ) will be withdrawn. These changes will take effect before the opening on March 18 effective.