The short version

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

  • GE Aerospace is the larger company, worth $329.7B, about 5.3 times Transdigm Group.
  • Transdigm Group grew revenue faster over the last year (+22.5% vs +21.1%).
  • Transdigm Group keeps more of each dollar of revenue as operating profit (46.0% vs 18.1%).
  • On earnings, Transdigm Group is the cheaper stock (34.8x vs 39.2x).
  • GE Aerospace's price assumes faster free cash flow growth: about 16% a year, against 12% for Transdigm Group (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.

MeasureGETDG
Market cap$329.7B$62.4B
Share price$308.20$1,107.99
Revenue (last fiscal year)$45.9B$8.8B
Free cash flow (last fiscal year)$7.3B$1.8B
Revenue growth, last year+21.1%+22.5%
Revenue growth per year, last 5 fiscal years-5.1%+16.5%
Operating margin18.1%46.0%
Net margin17.7%21.3%
Return on equity50.9%—
P/E (trailing)39.2x34.8x
Price / free cash flow45.4x34.4x
EV / EBITDA30.1x19.5x
FCF growth the price implies15.7%12.1%
Dividend yield0.50%—
Debt / equity6.22x—
Fundamental gradeCB
Superinvestors holding it99
Insider purchases, last 12 months68

Results from SEC filings

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

GE Aerospace

YearRevenueFree cash flowOp. margin
2021$56.5B$2.1B-14.9%
2022$29.1B$4.4B2.4%
2023$35.3B$4.3B10.5%
2024$38.7B$3.7B13.8%
2025$45.9B$7.3B18.6%

Transdigm Group

YearRevenueFree cash flowOp. margin
2021$4.8B$808M35.2%
2022$5.4B$829M40.8%
2023$6.6B$1.2B44.4%
2024$7.9B$1.9B44.5%
2025$8.8B$1.8B47.2%

Where the revenue comes from

GE Aerospace · by segments, 2025

Commercial Engines & Services$33.3B76%
Defense & Propulsion Technologies$10.6B24%

Transdigm Group · by segments, 2025

Power & Control$4.6B52%
Airframe$4.1B47%
Non-aviation$160M2%
Compare them in fullFifteen years of statements, quarterly results, DCF and IRR models, and any number of peers side by side.
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Questions

Which is bigger, GE Aerospace or Transdigm Group?

GE Aerospace (GE), at $329.7B against $62.4B.

Is GE or TDG cheaper?

By trailing P/E, Transdigm Group (34.8x) is cheaper than GE Aerospace (39.2x). A lower multiple can also mean the market expects less growth.

Which grows faster, GE or TDG?

Transdigm Group: revenue grew +22.5% over the last year, against +21.1%.

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