12:07 PM EST - Canadian National Railway Co. : shares were lower after the railway reduced its earnings guidance for the year as the company continues to face market and operational challenges from the first half of the year. CN's second-quarter net income decreased by 29 percent to $516 million from $729 million in the same period in 2006. Canadian National Railway Co.
shares T.CNR are trading down $3.34 at $57.01.
