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

Hecla Mining Co. rose $.19 or 3.0 percent, to $6.43.

Pan American Silver Corp. rose $.68 or 3.5 percent, to $20.29.

Silver Standard Resources Inc. rose $.21 or 1.3 percent, to $16.13.

Silver Wheaton rose $1.24 or 3.2 percent, to $39.53.

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