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

Hecla Mining Co. rose $.14 or 2.1 percent, to $6.75.

Pan American Silver Corp. rose $.09 or .4 percent, to $21.83.

Silver Standard Resources Inc. fell $.16 or 1.0 percent, to $16.33.

Silver Wheaton fell $.20 or .5 percent, to $39.65.

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