NEW YORK (AP) â¿¿ Shares of some top silver companies were mixed at the close of trading:

Hecla Mining Co. fell $.01 or .2 percent, to $4.63.

Pan American Silver Corp. fell $.07 or .4 percent, to $15.52.

Silver Standard Resources Inc. fell $.07 or .5 percent, to $13.08.

Silver Wheaton rose $1.25 or 4.4 percent, to $29.93.

Copyright 2011 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.