The short version

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

  • Leidos is the larger company, worth $15.5B, close to Gartner's $13.7B.
  • Leidos grew revenue faster over the last year (+7.2% vs -0.6%).
  • Gartner keeps more of each dollar of revenue as operating profit (17.2% vs 11.5%).
  • On earnings, Leidos is the cheaper stock (11.3x vs 20.2x).
  • Gartner's price assumes faster free cash flow growth: about -2% a year, against -5% for Leidos (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.

MeasureITLDOS
Market cap$13.7B$15.5B
Share price$191.15$121.68
Revenue (last fiscal year)$6.5B$17.2B
Free cash flow (last fiscal year)$1.2B$1.6B
Revenue growth, last year-0.6%+7.2%
Revenue growth per year, last 5 fiscal years+8.2%+5.7%
Operating margin17.2%11.5%
Net margin12.0%7.8%
Return on equity—26.0%
P/E (trailing)20.2x11.3x
Price / free cash flow11.6x9.55x
EV / EBITDA11.4x10.8x
FCF growth the price implies-2.2%-4.8%
Dividend yield—1.4%
Debt / equity—1.95x
Fundamental gradeCC
Superinvestors holding it64
Insider purchases, last 12 months100

Results from SEC filings

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

Gartner

YearRevenueFree cash flowOp. margin
2021$4.7B$1.3B19.3%
2022$5.5B$993M20.1%
2023$5.9B$1.1B20.9%
2024$6.3B$1.4B18.4%
2025$6.5B$1.2B15.8%

Leidos

YearRevenueFree cash flowOp. margin
2021$13.7B$929M8.4%
2022$14.4B$863M7.6%
2023$15.4B$980M4.0%
2024$16.7B$1.3B11.0%
2025$17.2B$1.6B12.3%

Where the revenue comes from

Gartner · by segments, 2025

Insights$5.1B78%
Conferences$645M10%
Consulting$552M9%
Other$227M4%

Leidos · by segments, 2025

National Security & Digital$7.6B44%
Health & Civil$5.1B30%
Commercial & International$2.3B14%
Defense Systems$2.2B13%
Compare them in fullFifteen years of statements, quarterly results, DCF and IRR models, and any number of peers side by side.
Open IT in Investingly

Questions

Which is bigger, Gartner or Leidos?

Leidos (LDOS), at $15.5B against $13.7B.

Is IT or LDOS cheaper?

By trailing P/E, Leidos (11.3x) is cheaper than Gartner (20.2x). A lower multiple can also mean the market expects less growth.

Which grows faster, IT or LDOS?

Leidos: revenue grew +7.2% over the last year, against -0.6%.

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