us stock futures were up tuesday evening as investors processed a rush of secondquarter earnings results that sent alphabet chipotle microsoft and texas instruments shares up in afterhours trading the major indexes slid during the session with the sp 500 dow jones industrial average and techfilled nasdaq composite losing 12 07 and 19 respectively walmart ticker wmt  which cut its profit guidance by about 10 for the full year on tuesday afternoon fell 76 bringing other retailers like ralph lauren  rl  dollar tree  dltr  and best buy  bby  down with it