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

Hecla Mining Co. rose $.08 or 1.7 percent, to $4.72.

Pan American Silver Corp. rose $.21 or 1.3 percent, to $15.80.

Silver Standard Resources Inc. rose $.27 or 2.1 percent, to $13.42.

Silver Wheaton rose $1.30 or 4.5 percent, to $29.98.

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