Super Micro Computer ($SMCI ) and Deckers Outdoor ($DECK (-5,56 %) ) are included in the S&P 500 ($SPY (-1,99 %) ), while Whirlpool ($WHR (-7,96 %) ) and Zion Bancorporation ($ZION (-1,56 %) ) will be withdrawn. These changes will take effect before the opening on March 18 effective.