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

Hecla Mining Co. fell $.27 or 4.1 percent, to $6.36.

Pan American Silver Corp. fell $.79 or 3.5 percent, to $21.83.

Silver Standard Resources Inc. fell $.63 or 4.0 percent, to $14.97.

Silver Wheaton fell $1.41 or 3.4 percent, to $39.73.

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