The Financial Post reports in its Tuesday edition that Canadian National Railway adjusted its end-of-year financial targets on Monday after its net profit fell 16 per cent in a first quarter marred by capacity constraint issues and the resignation of its chief executive officer. The Post's Alicja Siekierska writes that CN now expects its adjusted diluted earnings per share in 2018 to be in the range of $5.10 and $5.25, a decrease from its previous target of between $5.25 and $5.40. Significant volume growth, combined with what CN says was a difficult winter, saw its first quarter net profit fall to $741-million or $1 per adjusted diluted share in the three-month period ending March 31 as compared with $884-million or $1.15 per adjusted diluted share, at the same time last year. chief operating officer Mike Cory says: "Our focus since March is centred on catching up on volume, gaining back the confidence of our customers, sequentially improving our operating metrics in line with reducing our costs. Although we have months to go before we regain our rightful standing as the operational and service leaders in the industry, our work since the harshest part of the winter has produced some very good results."