Cogent Communications Holdings, Inc. (CCOI) | The Buildout — AI Infrastructure
The Verdict
Cogent operates a facilities-based network that sells dedicated internet access, private network services, optical wavelengths, and data center colocation. Its long-haul IP transit and wavelength products are the connectivity layer that links AI data centers to each other and to the broader internet, making it a complement to AI infrastructure rather than an AI compute provider.
| Market Cap | — |
| Revenue (TTM) | $949M |
| Revenue Growth | −6.7% |
| EBITDA Margin (TTM) | 18.3% |
| Net Debt | $2.5B |
| Earnings Beats | 5 of 7 |
| P/E (TTM) | — |
| EV/EBITDA (TTM) | — |
What We Like
- On-net revenue rose from 47% of total in the first full combined quarter to ~64% in Q2 2026; 82% of Q2 new sales were on-net.
- Cogent Classic run rate grew from $155M per quarter at close to $200M in Q2 2026, up 29%, while Sprint run rate fell from $118M to $34M.
- Wavelength customer connections reached 2,445 in Q2 2026, up 66.4% YoY, with 77 existing wavelengths re-provisioned to higher capacity.
- The 10-facility sale to I Squared Capital closed at $225M cash and produced a $130.7M GAAP gain; $138.8M face of 2032 notes were repurchased at a discount.
- Management describes its IP network as only ~27% utilized, with ~75% of traffic staying entirely on Cogent's network.
What We’re Watching
- Consolidated revenue has slipped two quarters in a row: -0.6% QoQ in Q1 2026, -1.5% QoQ in Q2 2026.
- Wavelength backlog disclosure was withdrawn; class-action notices cite wavelength and backlog disclosures, with a September 21, 2026 lead-plaintiff deadline.
- T-Mobile's 23 monthly payments of $8.3M run through November 2027; management says free cash flow excluding those payments is challenging.
- Vendor prices rose for the first time in 26 years and lead times are 9–15 months; the ~$100M 2026 capex target is conditional.
The balance-sheet side of the thesis is strengthening: the data center sale closed, leverage improved, and discounted debt repurchases advanced. The operating side is intact but unproven—total revenue still declined two quarters in a row, and the near-term revenue inflection has slipped twice. The open question is whether on-net and wavelength growth can overtake the remaining Sprint runoff before the T-Mobile payments end in November 2027.
Earnings Beat
Cogent reported Q2 2026 revenue of $235.6M, down 1.5% sequentially, while non-GAAP gross margin reached 47.0%, up 260 bps YoY. EBITDA as adjusted rose $0.9M QoQ to $71.1M, a 30.2% margin. Capex fell 31.4% YoY to $38.5M.
| Metric | Q1 FY2026 | Q4 FY2025 | Q1 FY2025 | YoY |
|---|---|---|---|---|
| Revenue | $239M | $240M | $247M | −3.2% |
| Gross margin | 46.0% | 22.3% | 44.4% | +160bps |
| EBITDA | $40M | $47M | $36M | +13.4% |
| EPS | $-0.83 | $-0.65 | $-1.09 | −24.2% |
| Wavelength revenue | $14.8M | $13.6M | n/a | +63.8% YoY |
Most of the AI spend is announced, but not yet deployed. So even though probably $1 trillion of capital has been deployed in AI infrastructure, only a small percentage of that trillion is actually in production being used for LLM creation or inference. There’s an expectation that over the next 4 years there’ll be a total of $7 trillion invested.— Dave Schaeffer, Q2 2026 call
Management tone: Management's tone moved from defensive-but-constructive in Q1 2026 to execution-focused and more candid on the balance sheet in Q2 2026. It was direct on the data center sale and debt repurchases, but reframed the revenue miss and withdrew the wavelength backlog metric.
Management Guidance
Cogent's disclosed multiyear targets are 6–8% revenue growth and ~200 bps per year of EBITDA margin expansion, both reaffirmed on the Q2 2026 call. For Q3 2026, management expects capex to decline further sequentially and year over year, and the 2027 notes refinancing is targeted to close in Q3 2026 at less than $750M.
Trajectory
Disclosed service revenue fell from $239.2M in Q1 2026 to $235.6M in Q2 2026, while on-net including wavelength rose to ~64% of total. The margin improvement is the counterweight: non-GAAP gross margin reached 47.0% and EBITDA as adjusted margin 30.2% in Q2. The driver is mix shift toward on-net and nearly complete cost-out—management says the vast majority of $240M in savings are achieved.
The Model
The model projects FY+1 revenue of $961M and EBITDA of $231M, a 24.0% margin. In FY+2 it projects revenue of $1,022M and EBITDA of $276M, a 27.0% margin. The near term is anchored by cost-out and moderating Sprint decline; FY+2 assumes the on-net and wavelength mix shift overtakes the remaining runoff.
| Metric | FY2025 | Next FY (E) | Following FY (E) |
|---|---|---|---|
| Revenue | $956M | $961M | $1.0B |
| YoY Growth | — | +0.5% | +6.3% |
| EBITDA | $169M | $231M | $276M |
| EBITDA Margin | 17.6% | 24.0% | 27.0% |
Projections are the median of 5 independent model runs.
Cogent's disclosed multiyear targets are 6–8% revenue growth and ~200 bps per year of EBITDA margin expansion, both reaffirmed on the Q2 2026 call. For Q3 2026, management expects capex to decline further sequentially and year over year, and the 2027 notes refinancing is targeted to close in Q3 2026 at less than $750M.
What Could Go Right — and Wrong
- Wavelength customers begin accepting installed waves faster; connection counts reaccelerate from Q2's +182 net adds.
- Remaining 14 data centers transact at or above ~$4.2M per MW, adding restricted cash for debt repurchase.
- On-net growth overtakes Sprint runoff, returning consolidated revenue to sequential growth.
- Progress toward the 25% North American long-haul wavelength share goal accelerates from today's 3%.
- SG&A declines sequentially in Q3 and Q4 as guided, expanding EBITDA margin.
- Sprint off-net and enterprise erosion persists, with Enterprise revenue still down around 26% YoY.
- Wavelength backlog remains undisclosed and conversion stays gated by customer power, equipment deliveries, and data center readiness.
- The Q3 2026 refinancing remains uncompleted; the 2027 notes are current and management targets raising less than $750M.
- T-Mobile payments end in November 2027 before EBITDA growth bridges free cash flow.
- Equipment price inflation does not moderate; lead times stay 9–15 months and capex re-accelerates.
Looking Ahead
The next twelve months center on completing the refinancing, converting remaining data center assets, and showing better revenue and cost prints. Management targets Q3 2026 refinancing of the 2027 notes, with the make-whole period already ended. Meanwhile, wavelength acceptance, the remaining 14 data center sales, integration cost-out flow-through, and the class-action deadline will shape the narrative.
- Q3 20262027 notes refinancing — Tests size and cost of replacement paper; management targets less than $750M.
- Q3 2026Q3 revenue direction — Tests whether sequential decline shrinks from Q2's -$3.6M / -1.5%.
- Q3 2026SG&A and margin flow-through — Tests guided sequential SG&A decline and EBITDA margin expansion.
- Q3 2026Q3 capex trend — Tests management's expectation of further sequential and YoY capex decline.
- September 21, 2026Class action lead-plaintiff deadline — Tests whether wavelength and backlog disclosure claims consolidate.
- Late 2026 / early 2027Remaining data center sales — Tests pricing and timing on the remaining ~55 MW; some NA sales may wait for NOL capacity.
Financials
Annual Summary
| Metric | FY2024 | FY2025 | TTM | YoY |
|---|---|---|---|---|
| Revenue | $1.0B | $956M | $949M | -7.7% |
| Gross Margin | 38.0% | 32.5% | 32.4% | 560bps |
| EBITDA | $100M | $169M | $1.6B | +68.0% |
| EBITDA Margin | 9.7% | 17.6% | 18.3% | +795bps |
| Net Income | −$204M | −$182M | −$170M | +10.7% |
| Free Cash Flow | −$204M | −$198M | $36M | — |
| Net Cash | — | — | — | — |
Key Ratios (Trailing)
- P/E TTM—
- EV/EBITDA TTM—
- EV/Revenue TTM—
- Price/FCF TTM—
- Gross Margin (TTM)32.4%
- EBITDA Margin (TTM)18.3%
- Net Margin (TTM)-17.9%
- ROIC-2.4%
- FCF Conversion-119.7%
- SBC / Revenue2.7%
The Company
Cogent is a facilities-based provider of dedicated internet access, private network services, optical wavelength and transport services, and data center colocation space and power. Its network is built for packet-routed data and serves businesses, communications service providers, and bandwidth-intensive organizations. In the AI buildout, it is the connectivity layer: wavelengths and IP transit link AI data centers to each other and the internet.
As of Q2 2026 it operates in 308 markets across 58 countries, with on-net services in 3,627 buildings and IP services sold in 1,953 data centers. The company owns and operates its own network and data centers while also selling into carrier-neutral facilities, and it is monetizing 24 former Sprint facilities as data centers rather than expanding AI compute capacity.
Business Segments
Competitive Landscape
Cogent describes its competition as incumbent telephone and cable companies, other facilities-based network operators, and new entrants, often larger with more financial and marketing resources. In wavelengths, management targets 25% of the North American long-haul wavelength market from 3% today; the largest AI buyers are also building their own optical capacity.
- Incumbent telephone and cable companies10-K names them as competitors and says they are often much larger, with greater financial resources, sales and marketing capabilities, brand recognition, and installed base.
- Facilities-based network operatorsNamed in 10-K as competitors; no specific competing carrier names are disclosed.
- New entrants to the communications services marketNamed in 10-K as competitors; no further detail provided.
- Hyperscalers self-building optical capacitySource describes them as provisioning their own optical capacity with Ciena, Arista, and Cisco gear, an indirect competitive dynamic.
Supply Chain
Cogent sits at the network-transport layer: suppliers are concentrated in routers and optical equipment, and customers are data-center-heavy network users. No neighbor transcript named Cogent directly.
More on CCOI: Earnings recap