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

Hecla Mining Co. rose $.13 or 3.0 percent, to $4.53.

Pan American Silver Corp. rose $.33 or 2.3 percent, to $14.89.

Silver Standard Resources Inc. rose $.29 or 2.3 percent, to $12.64.

Silver Wheaton rose $.65 or 2.4 percent, to $27.78.

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