Executive Mosaic’s GovCon Index rose 0.33% Friday to $5,617.83, its highest close on record. The index, which tracks the stock performances of 30 major government contractors, registered a 2.04% week-on-week gain. It also matched the six-week winning streaks of the Dow Jones Industrial Average and S&P 500 Index. The blue-chip Dow Jones (+1%), broader S&P