Stocks fell today on disappointing earnings and a poor housing report. The market got off to a weak start when numbers on new-home construction were weaker than expected. Poor earnings reports from DuPont and Coca-Cola didn’t help, though Caterpillar, which posted a less severe profit drop than expected, boosted the Dow with a 3.4% gain. The Dow lost 51 points to close at 10,041. The Nasdaq fell 13 points to 2,163, and the S&P 500 fell 7 points to 1,091, the Wall Street Journal reports.