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How COGENT COMMUNICATIONS HOLDINGS, INC. makes its money

Start with a dollar of revenue and follow what the filing says remains.

revenueBranching filed flows with values and percentages directly labeled. Missing filing concepts are omitted rather than estimated.Revenue$976M · 100%Cost of revenue$535M · 55%Gross profit$441M · 45%Operating income−$101M · −10%Income before tax−$245M · −25%Income tax−$62.8M · −6%Net income−$182M · −19%As of 2025-12-31 · 1 SEC filing sourceBuy Like Buffett · buylikebuffett.com

Honest partial: the filing did not provide a normalized tag for Research and development, Selling, general and administrative; those components are omitted, not plugged.

Table alternative
Filed lineValue% of revenueSource
$976M100%
  • 10-K · FY 2025Filing detailsAccession 0001104659-26-017968 · filed Feb 20, 2026
Cost of revenue$535M55%
  • 10-K · FY 2025Filing detailsAccession 0001104659-26-017968 · filed Feb 20, 2026
$441M45%
  • 10-K · FY 2025Filing detailsAccession 0001104659-26-017968 · filed Feb 20, 2026
−$101M−10%
  • 10-K · FY 2025Filing detailsAccession 0001104659-26-017968 · filed Feb 20, 2026
Income before tax−$245M−25%
  • 10-K · FY 2025Filing detailsAccession 0001104659-26-017968 · filed Feb 20, 2026
Income tax−$62.8M−6%
  • 10-K · FY 2025Filing detailsAccession 0001104659-26-017968 · filed Feb 20, 2026
−$182M−19%
  • 10-K · FY 2025Filing detailsAccession 0001104659-26-017968 · filed Feb 20, 2026
Source:
  • 10-K · FY 2025Filing detailsAccession 0001104659-26-017968 · filed Feb 20, 2026
· event Dec 31, 2025 · retrieved Oct 17, 2026 · annual-row source set
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