NEW YORK (AP) â¿¿ Shares of some top silver companies are up at 10 a.m.:

Hecla Mining Co. rose $.14 or 2.5 percent, to $5.67.

Pan American Silver Corp. rose $.37 or 2.0 percent, to $18.95.

Silver Standard Resources Inc. rose $.20 or 1.3 percent, to $15.30.

Silver Wheaton rose $.49 or 1.4 percent, to $36.20.

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