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

Hecla Mining Co. rose $.12 or 1.8 percent, to $6.67.

Pan American Silver Corp. rose $.23 or 1.1 percent, to $21.67.

Silver Standard Resources Inc. fell $.13 or .8 percent, to $15.90.

Silver Wheaton fell $.49 or 1.2 percent, to $39.22.

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