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

Hecla Mining Co. fell $.17 or 2.5 percent, to $6.66.

Pan American Silver Corp. fell $1.03 or 4.6 percent, to $21.43.

Silver Standard Resources Inc. fell $.81 or 4.8 percent, to $15.95.

Silver Wheaton fell $1.14 or 2.9 percent, to $38.77.

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