NEW YORK (AP) â¿¿ Shares of some top silver companies are mixed at 10 a.m.:

Hecla Mining Co. fell $.08 or 1.2 percent, to $6.59.

Pan American Silver Corp. rose $.04 or .2 percent, to $21.71.

Silver Standard Resources Inc. fell $.18 or 1.1 percent, to $15.72.

Silver Wheaton fell $.58 or 1.5 percent, to $38.65.

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 This material may not be published, broadcast, rewritten or redistributed.