NEW YORK (AP) — Shares of some top silver companies are down at 10 a.m.:

Hecla Mining Co. fell $.49 or 10.6 percent, to $4.15.

Pan American Silver Corp. fell $.27 or 1.7 percent, to $15.97.

Silver Standard Resources Inc. fell $.24 or 2.4 percent, to $9.77.

Silver Wheaton fell $.37 or 1.2 percent, to $31.38.