NEW YORK (AP) â¿¿ Shares of some top silver companies were down at the close of trading:
Hecla Mining Co. fell $.40 or 7.8 percent, to $4.74.
Pan American Silver Corp. fell $1.02 or 6.1 percent, to $15.57.
Silver Standard Resources Inc. fell $.77 or 7.0 percent, to $10.22.
Silver Wheaton fell $2.43 or 7.0 percent, to $32.19.
