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

Hecla Mining Co. fell $.10 or 2.2 percent, to $4.40.

Pan American Silver Corp. fell $.18 or 1.2 percent, to $14.76.

Silver Standard Resources Inc. fell $.58 or 4.5 percent, to $12.21.

Silver Wheaton fell $.37 or 1.3 percent, to $27.17.

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