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

Hecla Mining Co. fell $.11 or 2.0 percent, to $5.26.

Pan American Silver Corp. fell $.12 or .7 percent, to $17.15.

Silver Standard Resources Inc. fell $.30 or 2.0 percent, to $14.56.

Silver Wheaton fell $.30 or .9 percent, to $33.78.

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