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

Hecla Mining Co. fell $.03 or .6 percent, to $4.63.

Pan American Silver Corp. rose $.39 or 2.7 percent, to $14.70.

Silver Standard Resources Inc. rose $.37 or 2.9 percent, to $13.07.

Silver Wheaton rose $.58 or 2.1 percent, to $28.06.

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 This material may not be published, broadcast, rewritten or redistributed.