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

Hecla Mining Co. rose $.03 or .6 percent, to $5.29.

Pan American Silver Corp. rose $.04 or .2 percent, to $17.19.

Silver Standard Resources Inc. fell $.11 or .8 percent, to $14.45.

Silver Wheaton fell $.28 or .8 percent, to $33.40.

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