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

Hecla Mining Co. rose $.08 or 1.4 percent, to $5.81.

Pan American Silver Corp. fell $.19 or 1.0 percent, to $18.58.

Silver Standard Resources Inc. rose $.04 or .3 percent, to $15.07.

Silver Wheaton rose $.18 or .5 percent, to $36.22.

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