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

Hecla Mining Co. rose $.12 or 1.9 percent, to $6.49.

Pan American Silver Corp. rose $.26 or 1.2 percent, to $21.28.

Silver Standard Resources Inc. rose $.06 or .4 percent, to $16.27.

Silver Wheaton rose $.32 or .8 percent, to $39.24.

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