Harris Corp. (NYSE: HRS) announced its intent to buy Exelis (NYSE: XLS) for $5 billion, an announcement that sent a price surge of 9.63 percent and 36.25 percent for both companies.
The Dow Jones Industrial Average fell 60.59 points to 17, 824.29, the Standard & Poor’s 500 dipped 7.05 points to 2, 055.47 and the NASDAQ composite index declined 20.7 points to 2, 744.40.
Top Percentage Gainers
 Company |  Stock Price |  $ Change |  % Change |
 Exelis |   24.13 |   6.42 |   36.25% |
  Harris Corp. |   76.18 |   6.69 |   9.63% |
 McKesson |   222.76 |   6.90 |   3.20% |
 Computer Sciences Corp. |   65.02 |   1.57 |   2.47% |
 Navistar |   28.63 |   0.50 |   1.78% |
Market Summary
 Advancing Issues |   18 (60.00%) |
 Declining Issues |   12 (40.00%) |
 Unchanged Issues |    0 |
Executive Mosaic‘s GovCon Index is a composite index that tracks 30 of the largest publicly-traded Government Contracting (GovCon) firms.