The main indexes on Wall Street opened slightly lower today, Friday, as a reading on inflation, indicating continued moderation in price pressures, alleviated concerns about earnings after Intel issued a bleak revenue forecast. The Dow Jones Industrial Average declined by 42.45 points or 0.11 percent to 38,006.68. The S&P 500 dropped by 5.25 points or 0.11 percent to 4,888.91, while the Nasdaq Composite fell by 35.64 points or 0.23 percent to 15,474.85 at the open.