North American railroads like UNP, NSC, CSX, CNI, and CP exhibit HALO traits: irreplaceable heavy assets, low obsolescence, and durable cash flows. Current railroad valuations are rich, with multiples well above historical averages, suggesting limited near-term upside for new investors. Greenbrier offers a contrarian opportunity: trading below normal multiples, with a $2.1B backlog and 2.9% yield despite near-term headwinds.