The Filing Desk

CSX vs Union Pacific

CSX CSX · Union Pacific UNP · Rail Transportation

Union Pacific reported revenue of $24.5 billion in fiscal 2025, 1.7 times CSX's $14.1 billion in fiscal 2025. CSX's revenue fell 3.1% in its latest year, and Union Pacific's grew 1.1%. CSX had an operating margin of 32.1%, against 40.2% at Union Pacific. Free cash flow was $1.7 billion at CSX and $5.5 billion at Union Pacific.

Side by side

CSXUnion Pacific
Latest fiscal yearFY2025, Dec 31, 2025FY2025, Dec 31, 2025
Revenue$14.1B$24.5B
Revenue growth−3.1%1.1%
Revenue growth a year, last 5 years5.9%4.6%
Gross margin——
Operating margin32.1%40.2%
Net margin20.5%29.1%
Free cash flow$1.7B$5.5B
Free cash flow margin12.1%22.4%
Return on capital11.3%15.9%
Net debt to EBITDA2.9x2.5x
Dividends and buybacks$2.4B$5.9B
Change in diluted share count−3.6%−2.1%
Last close$51.31$296.97
P/E at the last close26.7×23.1×
Insider trades, last 12 monthsbought $1.0 million, sold $16.6 millionsold $9.3 million
Piotroski F-score4 of 87 of 8
Amounts in each company's own currency, US$ unless marked (a foreign company may report in another), each company's latest fiscal year from its 10-K, or 20-F or 40-F for a foreign company. Growth rates compare with the year before; the five-year rate is the average a year. Free cash flow is cash from operations minus capital spending; return on capital is after-tax operating income over the money invested in the business; P/E is the last close over the latest earnings per share. Banks are measured differently (return on equity, efficiency ratio), so some rows apply to one company only.

Ten years

Revenue
US$ billions, fiscal years
CSXUnion Pacific
Operating margin
Percent of revenue
CSXUnion Pacific
Free cash flow
US$ billions. Cash from operations minus capital expenditure.
CSXUnion Pacific

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Source: the companies' Form 10-K filings, from SEC EDGAR, and the last close. For information only, not investment advice: the figures describe results, not which company is the better investment. The Filing Desk is not affiliated with either company. Full figures on the CSX and Union Pacific pages.