The short version

From the latest prices and each company's SEC filings. Who's ahead on each measure, not which to buy.

  • Union Pacific is the larger company, worth $169.6B, about 2.4 times Norfolk Southern.
  • Union Pacific grew revenue faster over the last year (+11.5% vs +11.4%).
  • Union Pacific keeps more of each dollar of revenue as operating profit (40.0% vs 32.2%).
  • On earnings, Union Pacific is the cheaper stock (23.5x vs 26.8x).
  • Norfolk Southern's price assumes faster free cash flow growth: about 12% a year, against 11% for Union Pacific (reverse DCF).

Side by side

The stronger figure is shaded where higher (or, for valuation multiples, lower) reads as better. How the implied growth works.

MeasureNSCUNP
Market cap$71.6B$169.6B
Share price$317.79$278.34
Revenue (last fiscal year)$12.2B$24.5B
Free cash flow (last fiscal year)$2.2B$5.5B
Revenue growth, last year+11.4%+11.5%
Revenue growth per year, last 5 fiscal years+2.3%+3.0%
Operating margin32.2%40.0%
Net margin21.0%28.9%
Return on equity16.2%35.5%
P/E (trailing)26.8x23.5x
Price / free cash flow33.2x30.8x
EV / EBITDA15.7x14.7x
FCF growth the price implies11.6%10.7%
Dividend yield1.7%1.9%
Debt / equity1.78x2.44x
Fundamental gradeCC
Superinvestors holding it815
Insider purchases, last 12 months30

Results from SEC filings

Revenue and free cash flow by fiscal year, from each company's 10-K filings.

Norfolk Southern

YearRevenueFree cash flowOp. margin
2021$11.1B$2.8B39.9%
2022$12.7B$2.3B37.7%
2023$12.2B$852M23.5%
2024$12.1B$1.7B33.6%
2025$12.2B$2.2B35.8%

Union Pacific

YearRevenueFree cash flowOp. margin
2021$21.8B$6.1B42.8%
2022$24.9B$5.7B39.9%
2023$24.1B$4.8B37.7%
2024$24.2B$5.9B40.1%
2025$24.5B$5.5B40.2%

Where the revenue comes from

Norfolk Southern · by segments, 2025

Merchandise$7.7B63%
Intermodal$3.0B25%
Coal$1.5B12%

Union Pacific · by products, 2025

Total freight revenues$23.2B95%
Other revenues$1.3B5%
Compare them in fullFifteen years of statements, quarterly results, DCF and IRR models, and any number of peers side by side.
Open NSC in Investingly

Questions

Which is bigger, Norfolk Southern or Union Pacific?

Union Pacific (UNP), at $169.6B against $71.6B.

Is NSC or UNP cheaper?

By trailing P/E, Union Pacific (23.5x) is cheaper than Norfolk Southern (26.8x). A lower multiple can also mean the market expects less growth.

Which grows faster, NSC or UNP?

Union Pacific: revenue grew +11.5% over the last year, against +11.4%.

Prices and ratios as of the last daily update; statements from SEC filings. Information only, not investment advice.