ManTech International (Nasdaq: MANT) led all Index gainers with a 3.94-percent jump after the company said it would purchase cybersecurity consulting firm KCG.
According to the Wall Street Journal, no singular news event drove the rise in U.S. stocks Tuesday but the next trend that investors will watch is the next Federal Reserve statement on its policy meeting and press conference from Chairwoman Janet Yellen.
The Dow Jones Industrial Average climbed 113.31 points to 17, 904.48, the S&P 500 composite index rose 11.86 points to 2, 096.29 and the NASDAQ composite index gained 25.58 points to 5, 055.55.
Top Percentage Gainers
 Company |  $ Stock Price |  $ Change |  % Change |
  ManTech International |  29.56 |  1.12 |   3.94% |
 Maximus |  63.77 |  1.21 |  1.93% |
  Booz Allen Hamilton |  25.79 |  0.36 |  1.42% |
  Engility Holdings |  28.00 |  0.39 |  1.41% |
  SAIC |  52.62 |  0.65 |  1.25% |
Market Summary
 Advancing Issues |   25 (83.33%) |
 Declining Issues |    5 (16.66%) |
 Unchanged Issues |    0 |
Executive Mosaic‘s GovCon Index is a composite index that tracks 30 of the largest publicly-traded Government Contracting (GovCon) firms.