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 $6.47.

Pan American Silver Corp. rose $.51 or 2.5 percent, to $21.24.

Silver Standard Resources Inc. rose $.47 or 3.3 percent, to $14.85.

Silver Wheaton rose $1.17 or 3.1 percent, to $38.61.

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