The short version

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

  • Microsoft is the larger company, worth $4.14T, about 26.7 times Fortinet.
  • Fortinet grew revenue faster over the last year (+25.6% vs +17.8%).
  • Microsoft keeps more of each dollar of revenue as operating profit (46.8% vs 32.4%).
  • On earnings, Microsoft is the cheaper stock (33.2x vs 81.9x).
  • Fortinet's price assumes faster free cash flow growth: about 21% a year, against 20% for Microsoft (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.

MeasureFTNTMSFT
Market cap$154.7B$4.14T
Share price$194.75$535.07
Revenue (last fiscal year)$6.8B$331.8B
Free cash flow (last fiscal year)$2.2B$67.0B
Revenue growth, last year+25.6%+17.8%
Revenue growth per year, last 5 fiscal years+19.4%+13.7%
Operating margin32.4%46.8%
Net margin28.2%40.3%
Return on equity136.7%30.2%
P/E (trailing)81.9x33.2x
Price / free cash flow69.5x57.8x
EV / EBITDA53.1x19.1x
FCF growth the price implies21.4%19.8%
Dividend yield—0.66%
Debt / equity6.00x0.71x
Fundamental gradeCB
Superinvestors holding it433
Insider purchases, last 12 months1010

Results from SEC filings

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

Fortinet

YearRevenueFree cash flowOp. margin
2021$3.3B$1.2B19.5%
2022$4.4B$1.4B21.9%
2023$5.3B$1.7B23.4%
2024$6.0B$1.9B30.3%
2025$6.8B$2.2B30.7%

Microsoft

YearRevenueFree cash flowOp. margin
2022$198.3B$65.1B42.1%
2023$211.9B$59.5B41.8%
2024$245.1B$74.1B44.6%
2025$281.7B$71.6B45.6%
2026$331.8B$67.0B46.8%

Where the revenue comes from

Fortinet · by products, 2025

Security subscription$2.6B39%
Product$2.2B33%
Technical support and other$1.9B29%

Microsoft · by segments, 2026

Productivity and Business Processes$140.0B42%
Intelligent Cloud$137.8B42%
More Personal Computing$54.1B16%
Compare them in fullFifteen years of statements, quarterly results, DCF and IRR models, and any number of peers side by side.
Open FTNT in Investingly

Questions

Which is bigger, Fortinet or Microsoft?

Microsoft (MSFT), at $4.14T against $154.7B.

Is FTNT or MSFT cheaper?

By trailing P/E, Microsoft (33.2x) is cheaper than Fortinet (81.9x). A lower multiple can also mean the market expects less growth.

Which grows faster, FTNT or MSFT?

Fortinet: revenue grew +25.6% over the last year, against +17.8%.

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