Super Micro Computer ($SMCI ) and Deckers Outdoor ($DECK (-0,3 %) ) are included in the S&P 500 ($SPY (-0,69 %) ), while Whirlpool ($WHR (+4,91 %) ) and Zion Bancorporation ($ZION (-1,28 %) ) will be withdrawn. These changes will take effect before the opening on March 18 effective.