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

Hecla Mining Co. rose $.08 or 1.2 percent, to $6.59.

Pan American Silver Corp. rose $.40 or 1.9 percent, to $21.57.

Silver Standard Resources Inc. rose $.22 or 1.5 percent, to $15.34.

Silver Wheaton rose $.52 or 1.3 percent, to $39.81.

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