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

Hecla Mining Co. fell $.06 or 1.3 percent, to $4.64.

Pan American Silver Corp. rose $.08 or .5 percent, to $15.59.

Silver Standard Resources Inc. fell $.01 or .1 percent, to $13.15.

Silver Wheaton rose $.35 or 1.2 percent, to $28.68.

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