U.S. stocks declined as investors prepared to scrutinize the scheduled testimony of Federal Reserve Chair Janet Yellen to both houses of Congress Tuesday and Wednesday, CNBC reports.
Investors also anticipated a release of Greece’s reform proposals Tuesday morning to the Eurozone’s finance leaders after the country obtained a four-month extension on its bailout, according to CNBC.
The Dow Jones Industrial Average fell 23.6 points to close at 18, 116.84, the S&P 500 composite index lost 0.64 points to 2, 109.66 and the NASDAQ composite index gained 5.01 points to 4, 960.97.
Top Percentage Gainers
 Company |  Stock Price |  $ Change |  % Change |
 Computer Sciences Corp. |   71.75 |   4.82 |   7.20% |
 CGI Group |   44.09 |   2.48 |   5.96% |
 Huntington Ingalls |   142.41 |   4.72 |   3.43% |
  Healthnet |   57.82 |   1.33 |   2.35% |
 Booz Allen Hamilton |   30.46 |   0.34 |   1.13% |
Market Summary
 Advancing Issues |   15 (50.00%) |
 Declining Issues |   15 (50.00%) |
 Unchanged Issues |    0 |
Executive Mosaic‘s GovCon Index is a composite index that tracks 30 of the largest publicly-traded Government Contracting (GovCon) firms.