The GovCon Index ended the trading week with a gain of 0.711 points — or 0.990 percent — to close at 71.121 on Friday.
Energy stocks recovered ground as the price of crude oil increased 4.71 percent on the New York Mercantile Exchange to close at $48.43 and the ratio of gainers-to-laggers on the New York Stock Exchange was nearly three-to-one, CNBC reports.
The Dow Jones Industrial Average jumped 1.10 percent to 17, 511.57; the S&P 500 composite index gained 1.34 percent to 2, 019.42; and the NASDAQ composite index rose 1.39 percent to 4, 634.38.
Top Percentage Gainers
 Company |  Stock Price |  $ Change |  % Change |
 AECOM Technology |  25.80 |  0.88 |  3.53% |
 ManTech International |  31.52 |  0.88 |  2.87% |
  Engility Holdings |  42.82 |  1.13 |  2.71% |
 CGI Group |  38.94 |  0.95 |  2.50% |
 Navistar |  31.64 |  0.74 |  2.39% |
Market Summary
 Advancing Issues |  27 (90.00%) |
 Declining Issues |   3 (10.00%) |
 Unchanged Issues |   0 |
The Executive Mosaic GovCon Index is a composite index that tracks 30 of the largest publicly-traded Government Contracting (GovCon) firms.