The short version

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

  • Emerson Electric is the larger company, worth $86.0B, about 1.9 times Rockwell Automation.
  • Rockwell Automation grew revenue faster over the last year (+7.9% vs +7.0%).
  • On earnings, Emerson Electric is the cheaper stock (35.5x vs 43.0x).
  • Rockwell Automation's price assumes faster free cash flow growth: about 12% a year, against 11% for Emerson Electric (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.

MeasureEMRROK
Market cap$86.0B$46.2B
Share price$161.83$432.59
Revenue (last fiscal year)$18.0B$8.3B
Free cash flow (last fiscal year)$2.7B$1.4B
Revenue growth, last year+7.0%+7.9%
Revenue growth per year, last 5 fiscal years+8.6%+4.5%
Operating margin—22.7%
Net margin13.8%13.4%
Return on equity12.7%34.4%
P/E (trailing)35.5x43.0x
Price / free cash flow32.2x34.0x
EV / EBITDA20.9x28.0x
FCF growth the price implies11.2%11.9%
Dividend yield1.4%1.3%
Debt / equity1.07x2.17x
Fundamental gradeCC
Superinvestors holding it76
Insider purchases, last 12 months410

Results from SEC filings

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

Emerson Electric

YearRevenueFree cash flowOp. margin
2021$12.9B$3.2B—
2022$13.8B$2.6B—
2023$15.2B$274M—
2024$17.5B$2.9B—
2025$18.0B$2.7B—

Rockwell Automation

YearRevenueFree cash flowOp. margin
2021$7.0B$1.1B—
2022$7.8B$682M—
2023$9.1B$1.2B21.3%
2024$8.3B$639M19.3%
2025$8.3B$1.4B20.4%

Where the revenue comes from

Emerson Electric · by segments, 2022

Automation Solutions$11.8B60%
Climate Technologies$5.2B26%
Tools & Home Products$2.0B10%
AspenTech$656M3%

Rockwell Automation · by segments, 2025

Intelligent Devices$3.8B45%
Software & Control$2.4B29%
Lifecycle Services$2.2B26%
Compare them in fullFifteen years of statements, quarterly results, DCF and IRR models, and any number of peers side by side.
Open EMR in Investingly

Questions

Which is bigger, Emerson Electric or Rockwell Automation?

Emerson Electric (EMR), at $86.0B against $46.2B.

Is EMR or ROK cheaper?

By trailing P/E, Emerson Electric (35.5x) is cheaper than Rockwell Automation (43.0x). A lower multiple can also mean the market expects less growth.

Which grows faster, EMR or ROK?

Rockwell Automation: revenue grew +7.9% over the last year, against +7.0%.

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