NEW YORK (AP) â¿¿ Shares of some top silver companies are down at 1 p.m.:

Hecla Mining Co. fell $.07 or 1.2 percent, to $5.16.

Pan American Silver Corp. fell $.18 or 1.1 percent, to $16.66.

Silver Standard Resources Inc. fell $.22 or 1.6 percent, to $13.77.

Silver Wheaton fell $.53 or 1.6 percent, to $32.86.

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 This material may not be published, broadcast, rewritten or redistributed.