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

Hecla Mining Co. fell $.18 or 2.7 percent, to $6.49.

Pan American Silver Corp. fell $.51 or 2.3 percent, to $21.40.

Silver Standard Resources Inc. fell $.40 or 2.6 percent, to $14.78.

Silver Wheaton fell $2.25 or 5.6 percent, to $38.24.

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 This material may not be published, broadcast, rewritten or redistributed.