Silver companies shares down at the close of trading

Shares of some top silver companies were down at the close of trading:

Hecla Mining Co. fell $.12 or 3.8 percent, to $3.00.

Pan American Silver Corp. fell $.33 or 3.5 percent, to $9.12.

Silver Standard Resources Inc. fell $.22 or 3.9 percent, to $5.39.

Silver Wheaton fell $.42 or 2.2 percent, to $19.05.