NEW YORK (AP) â¿¿ Shares of some top silver companies were mixed at the close of trading:
Hecla Mining Co. fell $.08 or 1.4 percent, to $5.59.
Pan American Silver Corp. fell $.58 or 3.1 percent, to $18.07.
Silver Standard Resources Inc. rose $.13 or 1.0 percent, to $13.44.
Silver Wheaton fell $1.07 or 3.0 percent, to $35.11.
