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

Hecla Mining Co. rose $.10 or 1.5 percent, to $6.85.

Pan American Silver Corp. rose $.50 or 2.3 percent, to $22.33.

Silver Standard Resources Inc. rose $.30 or 1.8 percent, to $16.63.

Silver Wheaton rose $.57 or 1.4 percent, to $40.22.

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