NEW YORK (AP) -- Shares of some top silver companies are down at 10 a.m.:
Hecla Mining Co. fell $.06 or 1.9 percent, to $3.08.
Pan American Silver Corp. fell $.35 or 3.3 percent, to $10.20.
Silver Standard Resources Inc. fell $.11 or 1.8 percent, to $6.04.
Silver Wheaton fell $.65 or 2.6 percent, to $24.12.
