iShares Trust - iShares Core S&P Mid-Cap ETF announced audited earnings results for the year ended March 31, 2018. For the year, the company reported total investment income of $647,727,894. Net investment income was $617,757,654. Net realized gain was $2,393,061,637. Net realized and unrealized gain was $3,630,356,025. Net increase in net assets resulting from operations was $4,248,113,679. Net asset value per share was $187.51.