In the table below, we rank each Dow stock on a daily basis by its price performance versus its peers.  For example, Dupont (DD) was the best performing stock in the Dow yesterday, so yesterday it got a ranking of one.  Exxon Mobil (XOM) was the worst performer in the Index yesterday and received a ranking of thirty.  We rank each stock over the past twenty days and sum up their daily scores to see which have been leading the Index and which have been dragging it down.  Interestingly, Exxon, an energy company, has the highest (worst) total score while General Motors, an auto company, has the lowest (best).