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

Hecla Mining Co. fell $.03 or .6 percent, to $4.60.

Pan American Silver Corp. rose $.05 or .3 percent, to $15.57.

Silver Standard Resources Inc. rose $.15 or 1.1 percent, to $13.23.

Silver Wheaton rose $.11 or .4 percent, to $30.04.

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