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

Hecla Mining Co. rose $.02 or .3 percent, to $6.54.

Pan American Silver Corp. rose $.21 or 1.0 percent, to $21.42.

Silver Standard Resources Inc. rose $.01 or .1 percent, to $14.84.

Silver Wheaton rose $.03 or .1 percent, to $39.09.

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