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

Hecla Mining Co. rose $.14 or 3.2 percent, to $4.54.

Pan American Silver Corp. rose $.13 or .9 percent, to $14.89.

Silver Standard Resources Inc. rose $.29 or 2.4 percent, to $12.50.

Silver Wheaton rose $.29 or 1.1 percent, to $27.46.

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