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

Hecla Mining Co. fell $.04 or .9 percent, to $4.58.

Pan American Silver Corp. fell $.26 or 1.7 percent, to $15.38.

Silver Standard Resources Inc. fell $.32 or 2.5 percent, to $12.38.

Silver Wheaton fell $.24 or .8 percent, to $30.44.

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