NEW YORK (AP) â¿¿ Shares of some top silver companies are down at 1 p.m.:

Hecla Mining Co. fell $.12 or 1.7 percent, to $6.55.

Pan American Silver Corp. fell $.36 or 1.6 percent, to $21.56.

Silver Standard Resources Inc. fell $.28 or 1.8 percent, to $14.90.

Silver Wheaton fell $1.59 or 3.9 percent, to $38.90.

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