Updated from 4:04 p.m. EDTAfternoon reports of violence in Iraq sent the markets lower Tuesday, but blue-chip stocks held modest gains as increased consumer confidence mixed with positive earnings releases to inspire some buying. The Dow Jones Industrial Average closed up 33.43 points, or 0.32%, to 10,478.16 after being up as high as 10,537.35 earlier. The S&P 500 finished with a gain of 2.58 points, or 0.23%, to 1138.11. It peaked earlier at 1146.86. Those two indices outperformed the Nasdaq Composite, which ended down 4.24 points, or 0.21%, to 2032.53. The 10-year Treasury note traded up 9/32 in price, yielding 4.40%, while the dollar was higher against the yen and lower against the euro. In an active session, more than 1.5 billion shares traded on the New York Stock Exchange, where advancers edged out decliners by about 5 to 4. On the Nasdaq, over 1.9 billion shares changed hands, and decliners held a tiny majority. Multiple explosions shook the Iraqi town of Fallujah, according to the Associated Press, as a U.S. AC-130 gunship hammered targets in the city. Blasts and gunfire went on steadily for more than half an hour in sustained fighting, apparently in the northern Jolan district, a poor neighborhood where Sunni insurgents are concentrated. "