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

Hecla Mining Co. rose $.04 or .9 percent, to $4.65.

Pan American Silver Corp. rose $.14 or .9 percent, to $15.49.

Silver Standard Resources Inc. rose $.12 or 1.0 percent, to $12.66.

Silver Wheaton rose $.22 or .7 percent, to $30.97.

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