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

Hecla Mining Co. rose $.13 or 2.5 percent, to $5.39.

Pan American Silver Corp. fell $.11 or .6 percent, to $17.27.

Silver Standard Resources Inc. rose $.98 or 7.0 percent, to $14.99.

Silver Wheaton fell $.24 or .7 percent, to $33.95.

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