iShares Trust - iShares S&P 500 Index Fund reported unaudited earnings results for the full year ended March 31, 2012. For the year, the company reported total investment income of $578,540,378. Net investment income was $553,033,002. Net increase in net assets resulting from operations was $2,251,665,504. Net asset value per share was $141.28 compared to $133.00 a year ago.