behind positive gains for shares of salesforcecom inc and american express the dow jones industrial average is rallying thursday morning the dow djia was most recently trading 418 points 12 higher as shares of salesforcecom inc crm and american express axp have contributed about 25 of the bluechip gauges intraday rally salesforcecom incs shares have gained 1086 or 42 while those of american express are up 356 21 combining for an approximately 95point boost for the dow also contributing significantly to the gain are merck mrk  jpmorgan chase jpm  and caterpillar cat  a 1 move in any one of the 30 components of the index results in a 658point swing editors note this story was autogenerated by automated insights an automation technology provider using data from dow jones and factset see our market data terms of use