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

Hecla Mining Co. rose $.11 or 2.6 percent, to $4.36.

Pan American Silver Corp. rose $.20 or 1.5 percent, to $13.83.

Silver Standard Resources Inc. rose $.38 or 3.3 percent, to $12.07.

Silver Wheaton rose $.40 or 1.6 percent, to $25.73.

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