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

Hecla Mining Co. fell $.02 or .4 percent, to $5.36.

Pan American Silver Corp. fell $.28 or 1.6 percent, to $17.00.

Silver Standard Resources Inc. fell $.01 or .1 percent, to $14.98.

Silver Wheaton fell $.10 or .3 percent, to $33.85.

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