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

Hecla Mining Co. rose $.09 or 1.7 percent, to $5.53.

Pan American Silver Corp. rose $.56 or 3.1 percent, to $18.58.

Silver Standard Resources Inc. fell $.02 or .1 percent, to $15.10.

Silver Wheaton rose $.55 or 1.6 percent, to $35.71.

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