iShares Trust - iShares Dow Jones U.S. Index Fund announced earnings results for the full year ended April 30, 2012. For the period, the company reported net investment income of $10,753,923 compared with $10,270,338 for the same period a year ago. Net increase in net assets resulting from operations was $16,313,246 against $100,279,839 for the same period a year ago.