NEW YORK (AP) â¿¿ Shares of some top silver companies were down at the close of trading:

Hecla Mining Co. fell $.14 or 2.4 percent, to $5.68.

Pan American Silver Corp. fell $.30 or 1.6 percent, to $18.74.

Silver Standard Resources Inc. fell $.37 or 2.4 percent, to $14.80.

Silver Wheaton fell $.44 or 1.2 percent, to $35.91.

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