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

Hecla Mining Co. rose $.02 or .4 percent, to $5.18.

Pan American Silver Corp. rose $.08 or .5 percent, to $16.77.

Silver Standard Resources Inc. rose $.04 or .3 percent, to $13.78.

Silver Wheaton rose $.22 or .7 percent, to $33.11.

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