BUZZ-Silver Wheaton Corp: Profit misses estimates
** Canadian miner's U.S.-listed shares down 4.4 pct at $25.98
** Company reports Q2 profit of 18 cents per share, below average analyst estimate of 20 cents per share, as it realized lower prices on the metals it sold
** Average realized price per silver equivalent ounce sold falls 14 pct to $19.83, from a year earlier
** Production falls 3.4 pct to 8.4 million ounces
** Revenue falls 11 pct to $148.6 million
** Up to Wednesday's close, company's U.S.-listed shares had risen nearly 35 pct this year
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