Shares of some top chemicals companies were down at the close of trading:Dow Chemical Co. fell $.72 or 2.3 percent, to $30.15.DuPont Co. fell $.30 or .6 percent, to $49.85.

Shares in U.S. steelmakers fell on Wednesday and analysts said it was likely related to a major iron-ore producer warning that commodity markets could cool further amid the Euro zone crisis and uncertainty ...

All ears on the Ira Sohn conference.