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

CSX fell $.33 or 1.1 percent, to $29.59.

Canadian National Railway Co. fell $.87 or 1.3 percent, to $65.97.

Canadian Pacific Railway Ltd. fell $2.77 or 1.5 percent, to $187.18.

Kansas City Southern fell $1.27 or 1.2 percent, to $107.79.

Norfolk Southern Corp. fell $.46 or .5 percent, to $101.20.

Union Pacific fell $.40 or .4 percent, to $97.91.