NEW YORK (AP) â¿¿ Shares of some top silver companies are down at 1 p.m.:

Hecla Mining Co. fell $.14 or 2.2 percent, to $6.35.

Pan American Silver Corp. fell $.36 or 1.7 percent, to $21.04.

Silver Standard Resources Inc. fell $.31 or 2.1 percent, to $14.47.

Silver Wheaton fell $.40 or 1.0 percent, to $37.84.

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