NEW YORK (AP) â¿¿ Shares of some top silver companies are mixed at 10 a.m.:

Hecla Mining Co. rose $.04 or .7 percent, to $6.13.

Pan American Silver Corp. fell $.01 or percent, to $20.35.

Silver Standard Resources Inc. rose $.23 or 1.5 percent, to $15.16.

Silver Wheaton rose $.22 or .5 percent, to $40.82.

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