Harris Corp. (NYSE: HRS) has finalized its $5 billion purchase of Exelis,  whose place on the GovCon Index will now be occupied by Rockwell Collins (NYSE: COL) starting today.
The Dow Jones Industrial Average declined 99.23 points to 18, 026.89, the Standard & Poor’s 500 composite index was down 11.87 points to 2, 108.92 and the NASDAQ composite index lost 23.66 points to 5, 074.32.
Top Percentage Gainers
 Company |  Stock Price |  $ Change |  % Change |
 Intelsat |   10.69 |   0.31 |   2.99% |
 Serco Group |   2.21 |   0.06 |   2.79% |
 Health Net |   62.26 |   0.93 |   1.52% |
 AECOM |   33.03 |   0.35 |  1.07% |
 Leidos Holdings |   42.50 |   0.28 |   0.66% |
Market Summary
 Advancing Issues |    8 (26.66%) |
 Declining Issues |   21 (70.00%) |
 Unchanged Issues |    2 (3.33%) |
Executive Mosaic‘s GovCon Index is a composite index that tracks 30 of the largest publicly-traded Government Contracting (GovCon) firms.