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

Hecla Mining Co. rose $.22 or 3.4 percent, to $6.77.

Pan American Silver Corp. rose $.48 or 2.2 percent, to $21.92.

Silver Standard Resources Inc. rose $.37 or 2.3 percent, to $16.40.

Silver Wheaton rose $.24 or .6 percent, to $39.95.

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