NEW YORK (AP) a¿¿ Shares of some top silver companies were mixed at the close of trading:
Hecla Mining Co. rose $.08 or 2.6 percent, to $3.17.
Pan American Silver Corp. rose $.09 or .9 percent, to $10.51.
Silver Standard Resources Inc. fell $.06 or 1.0 percent, to $6.18.
Silver Wheaton fell $.07 or .3 percent, to $21.53.
