Grupo Aeroportuario del Centro Norte, S.A.B. de C.V. (NASDAQ: OMAB) — A Toll Road With a 2048 Expiry Date

Ticker: OMAB (NASDAQ ADR; 1 ADR = 8 Series B shares) · OMA (BMV) · Sector: Industrials — Transportation Infrastructure / Airport Services Report date: 2026-06-10 Primary sources: FY2025 Form 20-F (filed 2026-04-30), prior 20-Fs FY2021–FY2024, 2025–26 6-K filings, company IR, peer filings, industry/regulatory sources. Currency convention: Company reports in Mexican pesos (Ps. / MXN) under IFRS; the ADR trades in USD. USD figures use FX ≈ Ps.17.4/US$ (early-June-2026 spot) unless noted. The IFRIC 12 “construction” revenue line is a non-economic accounting gross-up and is stripped from all margin/economic analysis.

⚡ Claude’s Take

This block is the author’s own independent, subjective opinion and general information only — not investment advice. The analysis that follows takes no position, issues no price target, and frames valuation strictly as embedded expectations and scenarios.

Verdict: HOLD / accumulate-on-weakness. The best-quality airport in Mexico, but priced like the market knows it. Attractive — not cheap. I’d build a position into the high-$80s / low-$90s (≈7.5–8x EV/EBITDA, pushing the yield toward ~7%) and would be a reluctant buyer above ~$115 (≈10x). Base-case fair zone ~$105–120.

Tag: “A toll road with a 2048 expiry date — collect the ~6% coupon, but buy the dip, not the hype.”

The single most important thing to get right on OMA is that it is not the deep-value 5x airport a stale peer table makes it look like — on clean, single-currency math it trades at ~9x EV/EBITDA, ~15x earnings and ~6% yield, which is the 75th percentile of its own ten-year history. What you are buying is genuinely excellent: a legal local monopoly across 13 airports anchored by Monterrey — Mexico’s premier industrial/business hub and the cleanest nearshoring play in the listed airport world — throwing off ~74% ex-construction EBITDA margins, ~28–32% ROIC, ~85–90% FCF conversion, all-peso debt at 1.0x leverage, and a growing ~6% dividend that VINCI (now the controlling operator) has raised, not cut. This is a high-quality infrastructure annuity, and the dividend pays you to wait.

But three things keep me from “buy here.” First, the concession wastes. It expires in 2048 (~22.5 years out) and the assets revert free to the Mexican state; a hard-stop DCF haircuts value ~25–35% versus a perpetuity, and today’s price sits above that finite-life floor — meaning the market is already paying for a renewal that is entirely at the government’s discretion. Second, the regulator has shown its hand. In October 2023 the Mexican state cut maximum tariffs by decree mid-cycle and lifted the concession fee from 5% to 9% of revenue; the stock fell 26% in a day. The dual-till is statutory grace, not a contract right. Third, customer concentration just got worse — the December-2025 Viva Aerobus/Volaris merger puts ~63% of OMA’s aeronautical revenue under one ULCC group. The market, at ~9x, is not demanding much of a discount for any of these. So I want a margin of safety the current price doesn’t give me. Framing: quality-annuity-at-a-fair-to-full price — mildly contrarian only on weakness, never a chase.

Conviction: medium. Flips bullish if: a clear, clean signal emerges on the 2048 renewal (or VINCI’s commercial playbook drives non-aero/pax convergence toward ASUR’s ~Ps.145, ~20% upside) — that re-rates the whole finite-life debate. Flips bearish if: the state runs the 2023 play again (another mid-cycle tariff cut or DTA step), or the merged Viva/Volaris uses its ~63% share to rationalize routes and squeeze tariffs. At ~6% yield the downside is cushioned, but the bear case is a real ~−33%.

1. Executive Summary

Grupo Aeroportuario del Centro Norte (“OMA”) operates 13 international airports in central and northern Mexico under 50-year federal concessions running to November 2048. It is one of three listed Mexican airport operators (alongside ASUR/ASR and GAP/PAC), each a geographic monopoly that does not compete head-to-head with the others. OMA’s franchise is Monterrey — Mexico’s fourth-busiest airport, the gateway to its premier industrial/business catchment (Nuevo León), and the listed airport sector’s purest nearshoring exposure. Monterrey is 54.3% of passengers and 46% of commercial-relevant revenue, and its share is rising.

The business is structurally excellent and financially proven: FY2025 revenue of Ps.15.96bn (US$887m), an Adjusted EBITDA margin of ~74% ex-construction (the highest of the Mexican trio), ROIC of ~28–32%, ROE ~49%, ~85–90% FCF conversion, 1.0x net-debt/EBITDA on 100% peso-denominated debt (no FX mismatch), and high-quality, cash-backed earnings with no IAS 29 hyperinflation distortion (a clean contrast to Argentina-exposed CAAP). The moat is a Greenwald-textbook government-granted local monopoly + scale + demand captivity, and it shows up in the margins — these returns would not exist without the legal monopoly.

The catch is regulatory and structural, not financial. (1) The concession is finite and wasting — discretionary renewal, free reversion to the state in 2048. (2) The Mexican state demonstrated in October 2023 both the willingness and the legal ability to cut maximum tariffs by decree mid-cycle while raising the concession fee from 5% to 9% (the stock fell 26%). (3) The December-2025 Viva Aerobus/Volaris merger concentrates ~63% of OMA’s aeronautical revenue under one ULCC group. (4) VINCI Airports controls the company at a 29.99% economic stake (deliberately under the 30% mandatory-tender threshold, so minorities received no control premium) via a Series BB super-voting class and an entrenched board veto, and collects a ~Ps.261m/yr related-party Technical Assistance fee.

On clean, single-currency numbers OMA trades at ~9x EV/EBITDA (ex-construction), ~15x P/E, ~6% dividend yield, ~6% FCF yield — rich on its own ten-year history (~75th percentile), mid-pack within the Mexican trio, and at a justified ~2-turn discount to developed-market asset-owners (AENA/Fraport/Zürich ~11x). The market is underwriting ~5–6% perpetual-feeling dividend growth at a ~9% required return and implicitly assigning meaningful weight to a 2048 renewal (the price sits above a hard-stop finite-life PV). Scenario analysis frames a wide, FX-amplified range — roughly $65 bear / $118 base / $174 bull versus a $96.70 spot — with the downside owned by the regulator and the airline combine, and the upside by nearshoring, commercial catch-up, and a renewal/re-rating. This is a high-yield infrastructure annuity on a wasting asset, not a perpetual compounder. This memo carries no recommendation and no price target; valuation is framed strictly in embedded-expectations and scenario terms.

2. Business Overview

2.1 What the company does

OMA (legal name Grupo Aeroportuario del Centro Norte, S.A.B. de C.V.; “GACN”) holds federal concessions to operate, maintain and develop 13 international airports in central and northern Mexico. The concessions were granted for 50 years beginning 1 November 1998 and expire in 2048, renewable for up to an additional 50 years at the discretion of the Ministry of Infrastructure, Communications and Transport (SICT) and conditioned on a favorable profitability opinion from the Tax Ministry (20-F, Item 4, “Scope of Concessions”). OMA does not own the airports — the land and infrastructure are federal property under the National Assets Law and revert free to the state on expiry. What OMA owns is the right to operate (carried as an amortizing “Investment in airport concessions” intangible of Ps.20.4bn) plus an obligation to invest per a binding 5-year Master Development Program.

The 13 airports, by 2025 role: Monterrey (the metropolitan hub); three tourist airports (Acapulco, Mazatlán, Zihuatanejo); two border airports (Ciudad Juárez, Reynosa); and seven regional airports (Chihuahua, Culiacán, Durango, San Luis Potosí, Tampico, Torreón, Zacatecas). OMA served 28.8 million terminal passengers in 2025 (+8.5%) — the strongest growth of the Mexican trio.

2.2 How it makes money — two real revenue streams plus an accounting line

(Source: FY2025 20-F, Statement of Profit or Loss, F-8.) On the economically relevant base (aero + non-aero = Ps.13.65bn), aeronautical is 74.7% and commercial 25.3% — a mix that has been remarkably stable (aero 77.3% / 74.8% / 74.7% of the base across 2023–2025).

• Aeronautical revenue is a regulated price (the “Maximum Tariff” per workload unit) multiplied by volume — quasi-utility, traffic- and tariff-driven.
• Non-aeronautical revenue is the higher-margin value driver. Critically, 88.5% of commercial leases are royalty-based (a percentage of tenant revenue or a per-passenger minimum), and 86.6% actually generated royalties in 2025 — so OMA captures the upside as tenant sales and traffic rise, an inflation/traffic-linked structure. Commercial area is 23,909 m² at 93.4% occupancy.
• Construction revenue is an IFRIC 12 gross-up that mirrors MDP-mandated capex with an exactly offsetting cost line; it is non-economic and must be stripped (it is also shrinking as the 2020–2025 capex cycle matures, which mechanically understates reported total-revenue growth going forward).

2.3 Monterrey — the crown jewel

Monterrey is the thesis. It is Mexico’s 4th-busiest airport (15.6m pax, +15.4% in 2025), ~21km from a metro of ~5.3m people, capital of Nuevo León (a top-3 state contributor to Mexican GDP and the country’s premier manufacturing center). It is 83.8% domestic / 16.2% international, serves “primarily business travelers” plus cargo, hosts 15 airlines and 66 direct destinations across 3 terminals, and is the single largest concentration of nearshoring-driven air demand in the listed airport universe. Monterrey contributes 46.0% of aero + non-aero revenue and 54.3% of passengers — and that share has climbed steadily (49.6% → 51.2% → 54.3% over 2023–2025), increasing single-asset dependence. Terminal C ran at 101.5% of capacity and Terminal A at 78.4% in 2025, which is why ~50% of the next capex cycle points at Monterrey. VINCI moved OMA’s registered office to San Pedro Garza García (Monterrey metro) by 2026 — a literal re-centering on the crown jewel.

A note on segment optics: Monterrey’s reported segment operating margin is only ~21.5% because each airport subsidiary pays an intercompany “solidarity fee” to the parent (Ps.3.21bn from Monterrey in 2025) that cross-subsidizes the smaller airports. This fee eliminates on consolidation, so Monterrey’s true economic contribution is far above its segment margin — consolidated operating margin is 56.0%. Do not mistake the segment margin for Monterrey’s standalone profitability.

2.4 The diversification businesses — sensible, but small

Within non-aeronautical, OMA runs several airport-adjacent businesses: OMA Carga (cargo logistics, 3 bonded warehouses, Ps.458m, +8.5%); the NH Collection Hotel at Mexico City’s AICM T2 (287 rooms, 90% owned, Ps.335m); the Hilton Garden Inn at Monterrey (134 rooms, 85% owned, Ps.136m); the OMA-VYNMSA Aero Industrial Park at the Monterrey airport perimeter (51/49 JV, 32.4 hectares being developed in phases, 18 warehouses, 144,537 m² fully leased); plus parking (unregulated, at all 13 airports), advertising, retail/duty-free, F&B, and self-operated VIP lounges. Together OMA Carga and the two hotels are ~Ps.929m, ~5.8% of revenue. These are sensible “use the dirt next to the runway” plays that lever the Monterrey nearshoring catchment directly — but they do not change the thesis: OMA is ~94% a regulated airport-concession business with Monterrey as the crown jewel.

Revenue nature: recurring and quasi-utility — aeronautical is regulated price × volume; non-aero is traffic-linked royalties and leases. Cyclicality is GDP/air-travel-linked, not project-based.

3. Industry Dynamics

3.1 The Mexican airport oligopoly

Mexico privatized its commercial airports in 1998–2000 into a three-operator oligopoly of geographic monopolies: ASUR (ASR; southeast — Cancún), GAP (PAC; Pacific/Bajío — Guadalajara, Tijuana, Los Cabos), and OMA (center-north — Monterrey). Each operator’s airports are legal monopolies within their catchments; the three do not compete for the same passengers. The trio handled 133.0m passengers in 2025 (+2.3%), but growth diverged sharply: OMA +8.5%, GAP +2.5%, ASUR +0.3% — OMA’s business/industrial Monterrey demand outran ASUR’s softer Cancún leisure traffic.

3.2 The regulatory architecture — dual-till, 5-year resets, and a concession fee

Three features define the economics:

• Dual-till regulation. Only aeronautical revenue is rate-regulated, via a Maximum Tariff (Tarifa Máxima) per workload unit; non-aeronautical/commercial revenue is unregulated and flows to equity. This is materially more shareholder-friendly than Argentina’s single-till (where, as the CAAP analysis shows, commercial outperformance is clawed back into a regulated target-IRR). The dual-till is why OMA’s commercial business is a genuine value driver, not a pass-through.
• The 5-year Master Development Program (MDP/PMD) cycle. Every five years OMA submits, per concession, a 15-year traffic forecast plus a 5-year capex/maintenance plan to SICT. Once approved it is binding and becomes part of the concession, and the Maximum Tariffs are set for the same 5-year block. The new 2026–2030 MDP was approved 18 December 2025, committing Ps.16.6bn of investment (~50% to Monterrey), with maximum tariffs embedding an efficiency haircut of 0.80%/yr (slightly harsher than the prior 0.70%/yr). Tariffs are a one-way ceiling — they cannot be raised even if traffic assumptions worsen.
• The concession fee (“DTA”). OMA pays the federal government a fee on gross revenue (ex-construction). It was 5% through 31 December 2023 and was raised to 9% effective 1 January 2024 by decree — and “may be revised at any time” by the government.

3.3 The October 2023 intervention — the single most important structural fact

On 4 October 2023 (modified 19 October), AFAC/SICT amended Annex 7 (“Bases for Tariff Regulation”), cutting the maximum annual rates airports could charge effective 1 January 2024 — a surprise mid-cycle intervention — while the concession fee simultaneously rose 5%→9%. OMA’s BMV stock fell ~26% on the announcement (peers fell up to ~32%). The net effect: the state extracted value by raising its fee while forcing lower headline tariffs.

The dual-till partially protected OMA: the “excess” concession fee attributable to aeronautical (regulated) activities in 2024–2025 was added to the reference value used to set the 2026–2030 Maximum Tariff, so on the regulated book the higher fee is largely passed back through tariffs over time. But the 9% applies to all gross revenue, including unregulated commercial revenue — and that 4-point hit on commercial revenue is a permanent leakage to the government with no tariff offset. The deeper lesson is the one that governs the whole thesis: the dual-till regime is statutory grace, not a contract right — Annex 7 was amended unilaterally.

3.4 Demand backdrop and tailwinds

• FAA Category 1 restored (September 2023) after a 2021 downgrade, re-enabling Mexican carriers to add US routes/codeshares — already driving OMA’s +11.9% international traffic in 2025 (new Monterrey routes to SFO, Miami, Chicago, LAX, Dallas).
• Mexico City (AICM) saturation. AICM is capped (44 operations/hour from May 2025) and the government is diverting traffic to AIFA (Felipe Ángeles); Monterrey is a top-10 route to AICM/AIFA and benefits from spillover.
• Nearshoring. US manufacturers relocating to Mexico — Monterrey/Bajío especially — drive business air travel plus warehouse/industrial-park and cargo demand. OMA flags both the tailwind and the risk that competing developers build adjacent warehouses.
• Antitrust overhang. A reconstituted Mexican antitrust authority could, in time, issue rules affecting aero and non-aero revenue; the three-operator structure is a standing political/regulatory target.

3.5 Industry verdict

Structurally good, with one large asterisk. The positives are real and durable: legal local monopolies, near-absolute barriers to entry, dual-till (commercial upside accrues to equity), inflation/traffic-linked royalty leases, ~40–56% margins, GDP-plus secular volume growth, and genuine tailwinds (Cat-1, AICM spillover, nearshoring). The asterisk is sovereign/regulatory: this is a finite concession operating at the pleasure of a Mexican government that has demonstrated (2023) both the willingness and the legal ability to intervene mid-cycle to extract value. The asset class is good; it trades at an EM/political-risk discount to developed-market peers for sound reasons. Verdict: positive on structure, qualified on sovereign/regulatory risk.

4. Competitive Position

4.1 The moat — name the mechanism

In Greenwald’s taxonomy, OMA combines the three strongest ingredients: government-granted local monopoly + economies of scale + demand captivity — the same combination that defines peer Corporación América Airports. Each of the 13 airports is a legal monopoly within its catchment: a Monterrey-origin passenger has no alternative operator. The market-share-stability test passes trivially within each catchment (share ≈100% by legal fiat). And — critically, since a moat must surface in a financial outcome — it shows up unambiguously in the numbers: consolidated operating margin of 56.0% (2025), 53.6% (2024), 55.8% (2023), and ~74% Adjusted EBITDA margin ex-construction. These returns would simply not exist in a contestable market. This is a real moat tied to a real financial outcome.

4.2 Monterrey’s quality edge over the peers

OMA’s flagship is structurally superior to ASUR’s. Monterrey is a business/industrial catchment (Nuevo León manufacturing, nearshoring), less leisure-cyclical and less US-consumer-discretionary-dependent than Cancún (international leisure). The 2025 results bear this out: OMA +8.5% traffic and Monterrey +15.4% versus ASUR +0.3%. On catchment quality, Monterrey is the best single asset among the three Mexican operators, and OMA was the highest-growth of the trio in 2025.

4.3 Where the moat is capped — four honest counterweights

The moat is genuine but it is not a perpetual toll road. Four constraints must be named:

1. It is finite and depreciating. The concession runs to November 2048 (~22.5 years). Renewal is discretionary (SICT plus a favorable Tax Ministry opinion per airport, likely a higher fee), and assets revert free to the state on expiry. Every year the remaining concession life shortens by one year of high-margin cash, and terminal value depends on a renewal negotiation under unknown future political conditions.

2. It is regulator-exposed. Annex 7 was amended unilaterally in 2023; the dual-till is statutory grace. Returns this high (28–32% ROIC) structurally invite the regulator to claw back via the 5-year tariff resets and ad-hoc levies — and the 2024 DTA hike did exactly that.

3. It is customer-concentrated — and worsening. 2025 aeronautical revenue: Viva Aerobus 41.4% + Volaris 21.5% + Aeroméxico 18.6% = ~81.5% from three carriers. On 18 December 2025 Viva Aerobus and Volaris announced a merger of equals (“Grupo Más Vuelos”), which would put ~62.9% of OMA’s aeronautical revenue under one ULCC group. Viva’s share has been rising (35.0% → 38.7% → 41.4% over 2023–2025). No contract obligates any airline to keep serving OMA, so a combined carrier with monopsony heft raises route-rationalization and tariff-pressure risk. (Partial offset: a single rational, healthier carrier is more durable than two cash-burning ULCCs, and Monterrey’s business/cargo demand is sticky.)

4. It is VINCI-controlled. VINCI Airports (the world’s #1 private airport operator) holds a 29.99% economic stake but control via the Series BB class. This is a double-edged moat factor — a world-class operator brings commercial/cargo expertise and global airline relationships (potential to lift commercial per-pax toward developed-market levels), but a controller with super-voting rights and a related-party fee can run OMA for VINCI’s interests over minorities (see the capital-allocation section). Minorities ride alongside; they do not steer.

4.4 Commercial monetization — the gap to ASUR

OMA’s non-aeronautical revenue per passenger was Ps.120.4 in 2025 (Ps.104.0 ex-hotels), versus ASUR at roughly Ps.144–149. ASUR’s Cancún international/duty-free/leisure mix simply monetizes a higher retail spend per head; OMA’s domestic/business mix yields lower per-pax retail but steadier volumes. That ~20% gap is both a structural feature and a forward lever — the cleanest opportunity for VINCI’s commercial playbook to close.

4.5 Competitive verdict

A durable, financially-evidenced local-monopoly advantage to 2048, anchored by the highest-quality hub of the three Mexican operators — but a depreciating concession franchise, not a perpetual toll road. Quality of moat: high. Durability: medium-to-high, capped by the 2048 clock, the Mexican state’s demonstrated reach, the worsening airline concentration, and VINCI control. Best house on a regulated street.

5. Growth History and Forward Opportunities

5.1 Traffic history — strip the COVID artifact

Terminal passengers (thousands): 2014 14,695 → 2019 23,168 → 2020 11,063 (−52.3%, COVID) → 2021 18,025 → 2022 23,221 → 2023 26,846 → 2024 26,511 (−1.2%) → 2025 28,751 (+8.5%). (FY2025 20-F traffic table and prior vintages; the 2019 figure ties exactly across filings — a clean cross-check.)

The honest secular rate matters: 10-year CAGR (2015→2025) ≈ +5.4%; pre-COVID (2015→2019) ≈ +8.2%; through-COVID (2019→2025) ≈ +3.7%. The 5-year “+21%/yr” figure is a COVID-trough artifact and must be discarded; the durable underlying rate is ~5–8% (GDP-plus). 2025 traffic was +24% above the 2019 peak.

The lone down year, 2024 (−1.2%), was a supply problem, not a demand problem: the Pratt & Whitney GTF (PW1100G/PW1400G) powder-metal recall idled ~15–20% of the Viva/Volaris A320neo fleets, compounded by AICM operations caps. That headwind is fading into 2025–2026 as inspected aircraft return. The 2025 rebound (+8.5%) was the best of the trio, led by Monterrey (+15.4%) and international (+11.9%, on the new Cat-1-enabled US routes). 2026 is moderating back toward trend — monthly pax +5.4% Feb, +2.8% Mar, +3.6% May (2026 6-Ks).

5.2 The growth algorithm — high-quality and capital-light

OMA’s growth is pure volume × regulated-price × commercial-monetization on an existing 13-airport monopoly footprint — no acquisitions, no new-market execution risk. The three organic drivers:

• Traffic ~GDP-plus (~5–8% secular);
• Maximum-Tariff resets every 5 years (aero revenue/WLU rose Ps.317.1 → 327.8 → 338.7 over 2023–2025, ~+3.3–4.8%/yr);
• Commercial per-pax uplift (non-aero/pax Ps.97.9 → 116.0 → 120.4; the +18% 2024 jump was a step-change, ~5%/yr underlying after).

Because incremental passengers drop through at ~74% ex-construction EBITDA margins, this is genuinely high-quality growth. Caveats: traffic is GDP/air-travel cyclical and exposed to a single carrier-group’s fleet (P&W) and a single metro (Monterrey 54%); the 2024 commercial step-up won’t repeat annually; and the regulator captures part of the upside via the resets and the DTA. Verdict: high-quality, capital-light organic growth — a mid-single-digit compounder, not a hyper-growth story.

5.3 Forward opportunities — almost all roads lead through Monterrey

• Nearshoring → Monterrey (54% of pax): the prime beneficiary of US-manufacturing relocation; Monterrey +15.4% in 2025 evidences it.
• Monterrey capacity expansion (the biggest single capex): Terminal C at 101.5% drives a new terminal build; the 2026–2030 MDP commits ~Ps.8.3bn (~50% of the plan) to Monterrey; runway capacity is only 63.2% used, leaving room for more movements.
• Industrial park (OMA-VYNMSA): 32.4 hectares developed in phases; 2025 revenue +42.3% to Ps.218m, operating income +86% to Ps.146m — capital-light, ROIC-accretive monetization of airport land.
• Commercial per-pax convergence toward ASUR (~20% headroom) under VINCI’s commercial expertise (a VINCI-pedigree CCO was appointed September 2025).
• AICM saturation spillover and new Cat-1-enabled international routes.

The honest caveat: forward growth is real but bounded and concentrated — diversification (hotels + cargo + park, ~6% of revenue) is sensible but deepens rather than de-risks the Monterrey dependence. And the Ps.16.6bn 2026–2030 capex creates an FCF trough during the build.

6. Financial Quality

6.1 Five-year financial picture (MXN thousands unless noted)

*Adjusted EBITDA = operating income + D&A + major-maintenance provision (construction revenue = construction cost, nets to zero under IFRIC 12) — OMA’s covenant definition. (All figures: FY2025 20-F statements F-6 to F-10 and prior vintages.)

6.2 Revenue and the IFRIC 12 distortion

5-year revenue CAGRs: total 16.3%, ex-construction 18.5%, aeronautical 17.9%, non-aeronautical 20.3%. The ex-construction rate is genuinely strong and is led by commercial. Two adjustments are essential: (1) strip the construction gross-up (it is zero-margin and is shrinking as the 2020–2025 MDP winds down, so reported total revenue understates underlying growth); (2) recognize that the headline rate is flattered by the depressed 2021 COVID base plus the 2024 tariff step-up — the durable organic rate is traffic (~5–8%) + tariff/inflation + low-single-digit commercial uplift.

6.3 Margins — the best of the trio, and the DTA drag

OMA’s Adjusted EBITDA margin ran 73.7% → 78.4% → 74.5% (ex-construction) over 2021–2025 — the highest of the Mexican trio. The 2024 DTA hike (5%→9%) is visible: concession tax jumped from Ps.545m (2023) to Ps.990m (2024) to Ps.1,118m (2025), from 4.7% to ~8.2% of aero+nonaero revenue — a ~3.5pp drag on operating margin. But the aeronautical portion of that excess is being recovered via the higher 2026–2030 reference tariff, so the net economic hit is mainly the commercial (unregulated) portion of the fee, and margin compression is modest and partly reverses from 2026.

6.4 Returns — high, and largely real

ROE ~49–52%, ROA ~18–19%, ROIC ~28–32%. ROE is structurally inflated by three factors — the concession-intangible accounting (a Ps.20.4bn franchise asset sits amortized while book equity of Ps.11.3bn understates economic capital), ~1.0x leverage, and historic buybacks shrinking equity. The cleaner read is ROIC ~28–32%, and that is genuinely high — roughly 4–5x cost of capital. OMA is a high-return, cash-generative regulated monopoly. The “catch” is the flip side: returns this rich invite the regulator to claw back (the 2024 DTA hike did exactly that).

6.5 Cash flow, balance sheet, and a key correction

• Cash flow: OCF grew from Ps.4.4bn (2021) to Ps.7.4bn (2025), +13.7% CAGR; FCF from Ps.2.5bn to Ps.4.7bn; FCF conversion 53%→89% (improving as growth capex rolls off, until the next MDP wave). The 2022 dividend (Ps.6.6bn) exceeded FCF and was funded by drawing down the COVID cash buffer ahead of the VINCI takeover.
• Balance sheet — lowly levered, and (correction to a common misconception) 100% peso debt with NO USD bonds. Gross debt Ps.13.4bn (2025) is entirely long-term Certificados Bursátiles issued in the Mexican market (8 series, 30.9% floating/TIIE-indexed, laddered 2026–2032); net debt ~Ps.10.3bn = ~1.0x net debt/Adjusted EBITDA against a 3.0x covenant. Because both revenue and debt are peso-denominated, there is no FX mismatch on the company’s debt — a structural strength versus USD-financed EM peers. Liquidity is ample (Ps.3.1bn cash plus undrawn lines), and Mexican rates have been falling (TIIE-28 11.5% in 2023 → ~7.35% in 2025).

6.6 Share count, and quality of earnings

• Share count: weighted-average shares fell from 392.7m (2019) to 386.2m (2022) and have been flat since — a ~1.7% cumulative reduction. No SBC dilution. Buybacks ceased after VINCI took control (December 2022); the Ps.1.5bn repurchase reserve sits dormant.
• Quality of earnings: HIGH. Earnings are cash-backed (CFO consistently exceeds net income via non-cash D&A and major-maintenance add-backs), the effective tax rate is normal (25–30% vs Mexico’s 30% statutory), FX effects are minimal (peso debt + peso revenue), and there are no IAS 29 hyperinflation distortions (Mexico is not hyperinflationary — a clean contrast to Argentina-exposed CAAP, whose book equity and EPS are warped by IAS 29). The only feature to flag is IFRIC 12, which inflates both revenue and the asset base but is non-distorting once construction is netted out and the concession intangible is understood.

6.7 Financial verdict

Economics improve with scale and are genuinely high-return. OMA is a cash-generative regulated monopoly: ~74% Adjusted EBITDA margin (best of the trio), ~28–32% ROIC, ~49% ROE, ~85–90% FCF conversion, 1.0x net leverage on all-peso debt, high-quality cash-backed earnings, no hyperinflation noise. The catch is regulatory, not financial: returns this rich invite SICT extraction (the 2024 DTA cost ~3.5pp of margin, partly recovered via tariff); under VINCI, capital return is now ~84–92% dividend; heavy Monterrey concentration and Mexican-macro sensitivity; and a finite concession whose next MDP capex cycle will temporarily compress FCF.

7. Capital Allocation

7.1 Capex — mostly mandated, not discretionary

OMA’s capex is largely non-discretionary — major construction may only occur under an approved 5-year MDP, and tariffs are calibrated to fund it (the dual-till bargain). The 2021–2025 MDP committed ~Ps.16.3bn (Ps.17.6bn including deferrals); the 2026–2030 MDP commits Ps.16.6bn (Ps.20.4bn all-in including land and maintenance), ~50% at Monterrey. The “skill” in OMA’s allocation is therefore mostly upstream — in negotiating the MDP/tariff balance with the regulator — rather than discretionary deployment.

7.2 Shareholder returns — a growing, pro-rata dividend; buybacks ceased

• Dividends. A fixed-plus-variable policy (Ps.325m fixed plus the surplus above it). Distributions have grown and were not cut by VINCI: declared ~Ps.3.7bn (FY2022) → Ps.4.5bn (FY2024, FY2025) → Ps.4.9bn (April 2026 AGM); paid Ps.3.74bn / 4.22bn / 4.47bn across 2023–2025. Payout has risen to ~83–91% of net income. This is the single most minority-friendly fact in the file — VINCI runs OMA as a cash-distributing infrastructure annuity, strictly pro-rata to all holders. OMA carries the highest dividend yield of the trio (~6% vs ASUR ~2.1% / GAP ~3.9%).
• Buybacks. A repurchase program ran 2007–2021 (Ps.475m outflow in 2019, 3.66m shares cancelled in July 2020). From FY2022 it generated zero cashflow — treasury frozen at exactly 3,942,131 shares — coinciding with VINCI’s December-2022 control close. Rational for a controller (avoids float shrinkage and creeping toward the 30% tender trigger, and preserves MDP funding); neutral for minorities since the dividend is pro-rata.
• Total cash returned. In 2025, dividends (Ps.4.47bn, ~89% of simple FCF) plus interest (Ps.1.21bn) exceeded FCF (~Ps.5.0bn), plugged with cash/debt — OMA distributes essentially all post-capex free cash.

7.3 The VINCI control change — competent operator, entrenched governance

VINCI Airports acquired Fintech Advisory’s (David Martínez/Aeroinvest) 29.99% stake for US$1.17bn (SPA dated 31 July 2022, closed 7 December 2022 — not 2024–25; the March-2026 Form 3 flood reflects VINCI completing operational control). The structure is the crux:

• VINCI’s 29.99% is split CONCESSOC ~15.2% + SETA ~14.8%; SETA holds 100% of the Series BB super-voting class (12.9% of capital).
• While SETA holds ≥7.65% in BB form (and the Technical Assistance Agreement is in effect), the BB class confers disproportionate control: it elects 3 directors, can move to remove the CEO, appoints/removes half of executive officers, seats a member on every committee, and — critically — a majority of BB-appointed directors must affirmatively approve every material board matter (a blocking veto).
• The 29.99% was deliberately set just under the 30% mandatory-tender threshold, so VINCI obtained effective control without a tender offer or control premium to minorities. This is the central minority grievance.

Assessment: VINCI brings world-class operating capability (commercial/cargo expertise, global airline relationships, capital discipline). But governance is minority-unfriendly in form — a 29.99% controller wielding a board veto over a ~70% float, with “independent” RPT/committee checks that contain SETA appointees. The principal minority risk is not current cash diversion but future controller actions enabled by the entrenched BB veto (self-dealing RPTs, related-party expansion, or a future low-ball squeeze-out).

7.4 Related-party leakage — the Technical Assistance fee

OMA pays SETA/VINCI a Technical Assistance fee = the greater of US$3.478m (CPI-updated) or 3% of EBITDA. The 3%-of-EBITDA leg binds: Ps.235m (2024) → Ps.261m (2025), ~US$14.5m, +10.9%. That is a ~5% haircut to net income flowing to the controller off the top, on top of VINCI’s 29.99% pro-rata dividend share — a structural leakage minorities fund 100% but benefit from only 29.99%. Mitigants: the formula predates VINCI (inherited from the privatization/Fintech era), was reduced over time (5%→4%→3%), and is EBITDA-aligned. Verdict: defensible in form but a real, growing related-party transfer — net mildly extractive, bounded (~1.6% of revenue, ~3% of EBITDA).

7.5 M&A, diversification, insiders, compensation

• M&A / diversification: no large external M&A; growth is organic. The standout is the OMA-VYNMSA industrial-park JV (51/49; 2025 revenue +42%, operating income +86%) — capital-light, ROIC-accretive nearshoring monetization, not diworsification. Hotel JVs are smaller and fee/JV-structured. No value-destructive acquisitions.
• Insider signal: the 17 Form 3s filed 16–17 March 2026 (de Longevialle, Mathieu, Leite, Huon, et al.) are a governance/control event — initial ownership statements on VINCI’s board/management reconstitution, not open-market conviction buys. Personal holdings are expected ~0; economic exposure runs through SETA/CONCESSOC. There is no Form 4 buy signal to read here — OMA “insider ownership” is effectively the 29.99% control block.
• Compensation: clean — 24 officers, Ps.33.9m aggregate (2025); no stock options, no equity comp, no SBC dilution, no golden parachutes. The flip side: management has no direct equity skin in the game, and alignment runs through VINCI as controller (whose interests are not identical to minorities’).

7.6 Capital-allocation verdict

Competent but controller-shaped, and largely non-discretionary. Good: near-100% distribution of post-MDP free cash via a high and growing pro-rata dividend; zero dilution/SBC; ROIC-accretive capital-light adjacent diversification; no value-destructive M&A. Concerns are governance, not cash mis-deployment: control obtained at 29.99% without a minority tender; an entrenched BB board veto; a ~Ps.261m/yr related-party fee. Net: modestly minority-friendly on cash returns, minority-unfriendly on governance. The growing dividend is the saving grace.

8. Changes and Headwinds — Last Two Years

1. VINCI operational control (completed 2024–2026). World #1 private airport operator; mixed-to-positive on operations (commercial/cargo upside, capital discipline), negative on minority alignment (BB rights, related-party fee). Thesis-relevant, not thesis-breaking.
2. The 2023–2024 tariff intervention + DTA hike (the central event). Mid-cycle Annex 7 tariff cut + concession fee 5%→9% by decree; stock −26%; ~3.5pp margin drag (partly recovered via the 2026–2030 tariff). Weakens the thesis — it proved the state can re-cut tariffs and raise the fee by decree. The most important risk fact in the file.
3. The new 2026–2030 MDP + Maximum Tariffs (approved December 2025). Ps.16.6bn committed (~50% Monterrey), tariffs set to 2030 with a marginally harsher 0.80%/yr efficiency haircut. Mixed — resolves 5-year regulatory uncertainty and partly recovers the DTA, but locks in heavier capex (FCF trough) and a one-way tariff ceiling.
4. The Viva Aerobus/Volaris merger (announced December 2025). Two ULCCs combining into “Grupo Más Vuelos”; ~62.9% of OMA aeronautical revenue under one group; under Mexican antitrust (CNA) review (~12 months, structural remedies likely); shareholders approved March 2026. Weakens the thesis on customer concentration; monitor CNA remedies.
5. P&W GTF engine groundings (2023–2026). Caused the 2024 −1.2% traffic dip; now fading as inspected aircraft return — a reminder of OMA’s dependence on a narrow carrier/engine base.
6. FAA Category 1 restoration (September 2023). Strengthens the thesis — a structural international tailwind (drove +11.9% international in 2025).
7. Security / natural-disaster shocks. Hurricane Otis devastated Acapulco (2024 −32.7%, still ~23% below 2023 in 2025); Sinaloa/Culiacán cartel violence (ops suspended January 2023; US “Do Not Travel”). Weakens the affected small airports (Acapulco + Mazatlán + Culiacán ≈18% of pax); Monterrey unaffected. Recurring tail risk, not thesis-defining.

Overall: net mixed, tilting negative on risk profile. The business got operationally better under VINCI, but its two biggest fragilities — the regulator and customer concentration — both worsened in the last 24 months.

9. Risk Analysis

The two high-likelihood × high-impact risks are #1 (regulatory intervention) and #2 (airline concentration), amplified by #3 (Monterrey single-asset). Those three define the bear case. The macro/trade/security/disaster risks are real but either indirect or confined to small airports. Catastrophic loss (#14) is low — OMA has reversion-indemnity rights, a conservative all-peso 1.0x balance sheet, and a clean compliance record. The realistic downside is value extraction by the regulator/controller, not value destruction.

10. Valuation Discussion (Embedded Expectations)

No price target. No recommendation. Valuation is framed as clean multiples, embedded expectations, scenarios, and the finite-life nuance.

10.1 Clean, single-currency multiples — and why the “4.9x” is wrong

The fetch.py/yfinance EV/EBITDA of 1.5x is a currency artifact (it adds Ps.13.6bn of MXN debt to a USD market cap as USD, then divides by MXN EBITDA) and must be discarded. Built by hand from the 20-F (Adj EBITDA ex-construction Ps.10,167m; net debt Ps.10,330m; net income Ps.5,342m) at FX 17.4 / market cap US$4.67bn / EV US$5.26bn:

The EV/EBITDA is highly FX-sensitive (9.0x at 17.4 → 9.3x at 18.0 → 10.2x at 20.0); the P/E and yields are FX-neutral ratios. The headline takeaway flips the stale narrative: a prior peer table showed OMA at “4.9x,” implying deep value — that figure used a different EBITDA basis (likely total-revenue, including the IFRIC 12 gross-up) and a weaker peso. On a clean, ex-construction, current-FX basis OMA is a ~9x airport, not a ~5x airport — and an own-history valuation index puts OMA at the ~75th percentile of its trailing-decade valuation. OMA is not a deep-value screen; it is fully-to-richly valued on its own history.

10.2 Peer comparison (clean basis)

(Mexican peers approximated; OMA computed exactly. All ADR fetch.py EV/EBITDA figures are currency-garbled and not used.) On a clean basis the three Mexican operators cluster ~8–10x — the 2023 intervention compressed the sector and brought them much closer together than the stale table suggested. OMA’s historical quality premium is only partially reflected: it sits between ASR and PAC, with the highest dividend yield (a function of its ~84–92% payout). The whole trio trades at a justified ~2-turn discount to DM asset-owners (who own freehold in perpetuity; the Mexicans hold wasting concessions to 2048 under a regulator that re-cut tariffs by decree).

10.3 Embedded expectations — what must be true at $96.70

Treating the ADR as the present value of distributable cash to the 2048 expiry (a 23-year finite-life model with the ~6% dividend as proxy):

• A ~9% USD required return implies the market believes dividends grow ~6%/yr through 2048;
• ~4% dividend growth implies the market is accepting only a ~7% return;
• An ~11% EM-equity hurdle would require ~8%/yr dividend growth.

The embedded ~6% dividend growth decomposes into ~5–6% sustained Adjusted-EBITDA growth = roughly traffic ~5%/yr (the secular GDP-plus rate, not the COVID-trough artifact) + tariff/inflation ~3–4% less the 0.80%/yr efficiency haircut less the permanent ~4pt DTA leakage on commercial revenue, plus modest commercial-per-pax convergence. It is achievable but demanding — it requires Monterrey nearshoring to keep compounding, no further mid-cycle regulatory extraction, the Viva/Volaris combine not to squeeze tariffs/routes, and the peso not to depreciate faster than tariff inflation.

Is the market pricing the key items? The 2026–2030 tariff recovery is partly priced (the consensus base, not upside). The Viva/Volaris concentration looks arguably under-priced — at ~9x the market is not demanding much of a concentration discount. The 2048 finite life is partly priced via the EM discount, but (see the finite-life analysis below) the price sits above a hard-stop finite-life PV — the market is implicitly betting on renewal. Nearshoring is priced as a base-case continuation, not a supercycle.

10.4 Scenario analysis (bear / base / bull)

• Bear (~$65, −33%): further regulatory extraction (a 2023 repeat) + Viva/Volaris using ~63% share to rationalize routes/squeeze + a Monterrey-specific shock + a weaker peso; multiple de-rates to CAAP-like 6.5x. The ~6% dividend cushions total return even here.
• Base (~$118, +22%): ~5–7% traffic, the 2026–2030 tariff path holds, commercial per-pax grinds higher, stable ~9x, flat FX — “consensus continues.”
• Bull (~$174, +80%): nearshoring supercycle drives ~8% traffic, VINCI lifts commercial per-pax toward ASUR, peso strengthens, and the multiple re-rates toward the quality end as the market re-prices OMA as the best EM concession.

The spread is wide and FX-amplified — peso direction alone swings EV/EBITDA ~1.2 turns. The total-return asymmetry is roughly balanced-to-slightly-favorable because the ~6% dividend pays the holder to wait, but the bear case is a real −33% driven by the two structural high-likelihood/high-impact risks.

10.5 The finite-life nuance — the key analytical point

Unlike AENA/Fraport/Zürich (perpetual freehold owners), OMA’s concessions expire in 2048 and revert free to the state; renewal is discretionary. A finite-life DCF therefore haircuts value materially versus a perpetuity:

A hard-stop-2048 (zero residual) assumption costs ~25–35% of value versus treating OMA as a perpetuity. Two implications: (1) the current ~9x / US$4.67bn market cap is above the pure finite-23-year PV at conservative growth (~$3.0–3.5bn at r=11–12%) — so the market is not pricing a hard 2048 stop; it is implicitly assigning meaningful probability to renewal (or to higher growth, or to a lower discount rate than EM risk warrants); (2) the DM-to-EM multiple discount (~11x vs ~9x, ~2 turns) is far too small to compensate for the perpetual-vs-23-year-wasting difference alone. The 2048 renewal is the single swing variable for whether ~9x is rich or fair — a clean renewal converts OMA toward the perpetuity case; a denial or onerous re-tender validates a ~6–7x multiple. The 2023 willingness-to-extract and CAAP’s Argentine single-till are the cautionary analogs.

10.6 Dividend / annuity framing

As a high-yield annuity on a 23-year wasting concession, expected USD total return ≈ dividend yield (~6%) + dividend growth (~4–6% if traffic/tariff hold and the peso is stable) − peso-depreciation drag (historically ~3–5%/yr, though the peso has strengthened into 2026) ≈ ~8–11% USD total return in the base case — a bond-plus-growth annuity profile, not a capital-appreciation compounder. The high payout is the rational response to a finite concession — return the cash rather than reinvest into an asset you must hand back. Risks to the dividend: the 2026–2030 capex wave creates an FCF trough (dividends + interest already exceed simple FCF, plugged by cash/debt); regulatory extraction or a Viva/Volaris hit reduces distributable cash; the peso erodes the USD value of the MXN dividend; and the VINCI TA fee is a prior claim. Balance-sheet headroom (1.0x vs 3.0x covenant) makes the dividend defensible near-term, but ~90% payout + a heavy capex cycle leaves little margin for a simultaneous traffic + regulatory shock.

10.7 Valuation verdict

OMA trades at ~9x EV/EBITDA (ex-construction), ~15x P/E, ~6% dividend and FCF yield, 1.0x net leverage — rich on its own history, mid-pack in the trio, at a justified ~2-turn discount to DM asset-owners. The “deep-value 5x” read is a stale artifact. The market underwrites ~5–6% dividend growth at a ~9% return and an implicit 2048-renewal bet. Scenarios frame ~$65 / $118 / $174 (bear/base/bull) versus $96.70, with downside owned by the regulator and the airline combine. It is a high-yield infrastructure annuity on a wasting asset, not a perpetual compounder.

11. Variant Perception

Consensus view. OMA is the highest-quality Mexican airport — the best hub (Monterrey/nearshoring), the highest margins and growth of the trio, a fortress balance sheet, a world-class operator (VINCI) at the helm, and a ~6% dividend. Analysts carry it as a quality EM-infrastructure income name (consensus rating ~hold-to-modest-buy; third-party targets cluster well above spot, but third-party targets are color, not our view).

The strongest bull case. Monterrey nearshoring is a multi-year supercycle, not a cycle; VINCI closes the ~20% commercial-per-pax gap to ASUR and brings global airline relationships; AICM saturation permanently diverts traffic; the 2026–2030 tariffs (which partly recover the DTA) plus FAA Cat-1 international routes compound; the 2048 concession is renewed cleanly (VINCI’s relationships, OMA’s compliance record, Mexico’s need for airport capex); and the ~6% dividend pays you to wait while the multiple re-rates toward the DM/quality end. → the bull scenario (~$174).

The strongest bear case. The 2023 intervention was a template, not a one-off — the state extracts again via another tariff cut or DTA step; the merged Viva/Volaris (~63% of aero revenue) uses its monopsony to rationalize routes and squeeze tariffs; Monterrey’s nearshoring narrative reverses on US tariffs/trade friction (the 54%-of-pax concentration becomes the amplifier); the peso weakens; and the 2048 clock erodes terminal value while the price already pays for a renewal that isn’t guaranteed. → the bear scenario (~$65).

The 3–5 assumptions that matter most: (1) no further mid-cycle regulatory extraction (the dual-till holds in practice); (2) the 2048 concession is renewed on acceptable terms; (3) Monterrey nearshoring continues (the 54% concentration keeps compounding rather than reversing); (4) the Viva/Volaris combine does not squeeze OMA’s tariffs/routes; (5) the peso does not depreciate faster than tariff inflation.

What would falsify each side. Bull falsified by: a new Annex 7 amendment or DTA hike; a Viva/Volaris route-rationalization or tariff dispute at OMA airports; a US-tariff-driven nearshoring reversal visible in Monterrey traffic. Bear falsified by: a concrete, early signal on a clean 2048 renewal; sustained Monterrey traffic outperformance through a US-trade shock; commercial-per-pax convergence toward ASUR under VINCI; and the 2026–2030 tariff path delivering the DTA recovery as designed.

12. Fact vs. Interpretation

13. Open Questions

1. 2048 renewal — probability and terms (especially the renewal concession fee). The single swing variable for whether ~9x is rich or fair; unknowable today, but the price implies a meaningful renewal probability.
2. CNA antitrust outcome on Viva/Volaris — approval with structural remedies (slot/route divestitures) vs. block; timing (~12 months from Dec-2025); net effect on OMA’s route count and pricing.
3. 2026–2030 MDP capex phasing — pins the FCF-trough year and the headroom under the ~90% payout.
4. DTA split — the exact peso split of the 2024–25 excess concession fee between recoverable aeronautical and permanently-lost commercial revenue; determines the durable margin level.
5. Precise peer EV/EBITDA — ASR and PAC FY2025 ex-construction Adjusted EBITDA + net debt to make the peer multiples exact (computed ranges ~8–9x / ~9–10x are approximate).
6. TA-fee value-for-money — is VINCI delivering incremental commercial/technical value commensurate with the growing ~Ps.261m/yr fee? (Rising commercial per-pax is circumstantial support, not proof.)

14. What Must Be True

For the bull case (≈$174):

• Monterrey nearshoring is a multi-year supercycle (traffic ~8%), the peso holds/strengthens, VINCI closes the ~20% commercial-per-pax gap to ASUR, and the multiple re-rates toward ~10.5x as the 2048 concession looks renewable.
• Falsification test: A new Annex 7 amendment or DTA step, OR Monterrey traffic decelerating toward GDP through a US-trade shock, OR a Viva/Volaris-driven route/tariff dispute at OMA airports, OR commercial per-pax failing to converge under VINCI — any of these breaks the bull.

For the bear case (≈$65):

• The 2023 intervention is a template the state runs again, AND/OR the merged Viva/Volaris squeezes ~63% of aero revenue, AND/OR a Monterrey-specific shock hits the 54%-concentration, with the multiple de-rating to ~6.5x and a weaker peso.
• Falsification test: A concrete early signal of a clean 2048 renewal, OR sustained Monterrey outperformance through a trade shock, OR the 2026–2030 tariffs delivering the designed DTA recovery with commercial per-pax converging — any of these breaks the bear.

The hinge for both: the 2048 renewal and the durability of the dual-till in practice. Everything else is magnitude around those two binary-ish questions, cushioned by a ~6% dividend that pays you to wait.

15. Source Appendix

Key public primary sources below; a fuller citation list follows in Appendix B.

Primary filings (SEC EDGAR, CIK 0001378239):

• OMAB FY2025 Form 20-F, filed 2026-04-30 (omab-20251231x20f.htm) — Items 3 (Risk Factors), 4 (Business, concessions, traffic, airline mix, MDP, DTA), 5 (Operating & Financial Review, segment data, capex), 6 (Directors & Compensation), 7 (Major Shareholders, VINCI/SETA control, Series BB, Technical Assistance Agreement, related-party transactions), 8 (dividends); audited financial statements F-6 to F-10; Note 15 (long-term debt).
• OMAB Form 20-F FY2021–FY2024 — multi-year traffic, financial comparatives, share-count and buyback history.
• OMAB Form 6-K (2025–2026) — monthly traffic reports, 2026–2030 MDP approval (Dec-2025), Viva/Volaris merger note, dividend declarations, registered-office change.
• Form 3 filings (17, filed 2026-03-16/17) — VINCI board/management reconstitution.

Peer / sector:

• Corporación América Airports (CAAP), ASUR (ASR) and GAP (PAC) public filings and disclosures — airport-concession economics, till regimes, and peer multiples.

Market / FX data:

• fetch.py (yfinance), 2026-06-10 — ADR price, market cap, dividend yield (EV/EBITDA fields discarded as currency-garbled).
• USD/MXN spot ~17.4 — tradingeconomics.com/mexico/currency; federalreserve.gov H.10; eldolar.info (accessed 2026-06-10).

Industry / regulatory / news (web, accessed 2026-06-10):

• VINCI Airports press / airport-technology.com / Cleary Gottlieb — 29.99% stake from Fintech, US$1.17bn, closed Dec 2022.
• mexicobusiness.news — 2025 Mexican airport traffic (trio 133.0m, +2.3%; OMA +8.5% best); commercial per-pax.
• streetinsider / marketscreener — Oct-2023 Annex 7 tariff cut and sector selloff.
• mexiconewsdaily.com — FAA Category 1 restoration (Sep-2023); AICM caps; AIFA.
• DLA Piper / JD Supra / AeroMorning — Viva/Volaris merger (“Grupo Más Vuelos”), CNA review, March-2026 shareholder approval.
• simpleflying.com / ch-aviation.com — P&W GTF groundings.
• CBC / borderreport.com / US State Department — Sinaloa cartel violence, travel advisories; Hurricane Otis / Acapulco.

This article expresses no buy/sell recommendation and no price target; the Claude's Take block above is a separate, clearly-labeled independent opinion and general information only — not investment advice. Management commentary is treated as hypothesis, validated against filings, financials, and external evidence.

APPENDIX A — Standard Diligence Questionnaire

Grupo Aeroportuario del Centro Norte, S.A.B. de C.V. (NASDAQ: OMAB / BMV: OMA) · Report date 2026-06-10 Supplemental to the analysis above. Fact / Interpretation / Assumption labels applied where it matters. Currency: MXN unless noted; FX ≈ Ps.17.4/US$.

General

What thoughtful questions have other investors asked about this company? The recurring institutional questions: (1) Will the 2048 concession be renewed, and on what terms? — the dominant long-term valuation question. (2) Was the 2023 tariff cut + DTA hike a one-off or a template? — i.e., how secure is the dual-till in practice. (3) How does VINCI’s control change the equity story — is it an operating upgrade or a minority-extraction risk, and will buybacks ever resume? (4) What does the Viva/Volaris merger do to ~63%-concentrated aeronautical revenue? (5) Is OMA still the “quality premium” name, or has the sector compressed it to mid-pack? (Interpretation: on clean multiples it is mid-pack, ~9x.) (6) How much of the Monterrey nearshoring story survives US-trade friction?

Cyclicality & Earnings Nature

Are earnings at a cyclical high or low? Interpretation: Mid-to-high. 2025 traffic was +24% above the 2019 pre-COVID peak and grew +8.5% (the trio’s best), aided by a one-time +18% 2024 commercial-per-pax step and a P&W-groundings rebound. 2026 is moderating to mid-single-digit (monthly pax +2.8% to +5.4%). Margins (~74% ex-construction EBITDA) are near structural highs, partly offset by the 2024 DTA drag. Not a depressed base.

Driven by the external environment or internal actions? Interpretation: Mostly external (Mexican GDP, air-travel demand, nearshoring, tariff resets, the regulator) with a meaningful internal lever (commercial monetization, capex-driven capacity, VINCI’s commercial playbook). Traffic is the external driver; price is regulated; commercial per-pax is the internal one.

How stable are revenues? Fact/Interpretation: Quasi-utility and recurring — regulated price × volume (aeronautical) + traffic-linked royalty leases (88.5% royalty-based commercial). Stable in normal times; volume is GDP/air-travel cyclical (COVID showed a −52% trough). Less leisure-cyclical than ASUR because of Monterrey’s business/industrial mix.

Outlook for products/services? Positive secular volume (~5–8%) + tariff/inflation resets + commercial uplift, bounded by the regulator’s 5-year resets and the 0.80%/yr efficiency haircut.

How big will this market be — growing, shrinking, domestic or international? Growing. Mexican air travel compounds with GDP and a rising middle class; the trio handled 133m pax in 2025. OMA is 83.8% domestic at Monterrey but adding international (Cat-1 restored). Nearshoring is the structural amplifier for Monterrey.

Business Quality & Competitive Moat

Is the industry getting more or less competitive? Interpretation: Internally, not competitive — three geographic monopolies that don’t overlap. The competitive pressure is regulatory/political (the state as price-setter and fee-collector) and customer-side (airline consolidation via Viva/Volaris), not rival airports.

How profitable is the business (ROIC, ROE)? Fact: Very. ROIC ~28–32% (the clean read), ROE ~49% (flattered by intangible accounting + leverage), ROA ~18–19%, ~74% ex-construction EBITDA margin, 56% consolidated operating margin.

How profitable is the industry — competitors, barriers? Fact: High and protected. Three operators, near-absolute barriers (you cannot build a competing gateway; assets are federal; a strategic shareholder must be pre-qualified). Margins ~40–56% across the trio.

Can the business be easily understood? Yes — a regulated airport-concession toll model with two real revenue streams (regulated aero + unregulated commercial) plus an IFRIC 12 accounting line to strip out.

Can it be undermined by foreign low-cost labor? No — physical, location-bound infrastructure. (The demand is tied to nearshoring, which is itself a labor-cost-arbitrage phenomenon benefiting Monterrey.)

Do brands matter? Modestly — airline and retail brands matter at the margin; the franchise value is the legal monopoly, not a consumer brand. VINCI’s operating brand adds commercial/technical capability.

What is the nature of competition? Geographic monopoly within each catchment; “competition” is the regulator (tariff resets, DTA), the airlines (concentration), and, for nearshoring real estate, third-party warehouse developers.

Customers’ switching costs? Passengers: effectively no alternative operator (captive). Airlines: high — they must use the monopoly gateway to serve the catchment, though no contract binds them to specific service levels, which is the concentration risk.

Financial Condition & Balance Sheet

Assets not fully recognized on the balance sheet? Interpretation: The economic value of the Monterrey franchise and the commercial/real-estate optionality (industrial-park land) exceeds book. Conversely, the Ps.20.4bn concession intangible is a wasting asset that amortizes to zero by 2048.

Off-balance-sheet liabilities? Fact: The binding MDP capex commitment (Ps.16.6bn for 2026–2030) is a contractual obligation; major-maintenance provisions are on-balance-sheet. The Technical Assistance fee and reversion/indemnity obligations are contractual. No unusual hidden leverage found.

How conservative is the accounting? Interpretation: Conservative and high-quality — IFRS, cash-backed (CFO > NI), normal 25–30% tax rate, minimal FX, no IAS 29 hyperinflation distortion (unlike Argentine peers). The only complexity is IFRIC 12 (concession intangible + construction gross-up), which is standard and non-distorting once understood.

How CapEx-hungry is the business? Fact: Very — but mandated and tariff-funded. ~Ps.3.3–4bn/yr under the binding MDP (the dual-till funds it via tariffs). The 2026–2030 build (~50% Monterrey) creates a temporary FCF trough.

Capital Allocation & Management

How much FCF, and how is it used? Fact: FCF Ps.4.7bn (2025), ~85–90% conversion. Used almost entirely for dividends (~84–91% payout, growing Ps.3.7bn→4.9bn declared). Buybacks ceased after VINCI’s Dec-2022 control. Philosophy: distribute post-capex cash (rational for a wasting concession).

Significant acquisitions recently? Fact: No large external M&A. Organic growth + airport-adjacent JVs (the OMA-VYNMSA industrial park, +42% revenue; hotels; cargo). ROIC-accretive, capital-light — not diworsification.

Buying back shares? Fact: Not since VINCI control (Dec-2022); treasury frozen at 3,942,131 shares; the Ps.1.5bn reserve is dormant.

Issuing large amounts of new shares to insiders? Fact: No. No stock options, no equity/share-based comp, no SBC dilution. Share count flat since 2022.

Compensation policy? Fact: Cash-only, low quantum (24 officers, Ps.33.9m aggregate 2025); no options, no golden parachutes. Interpretation: Clean on dilution but no management equity skin in the game; alignment runs through VINCI as controller (whose interests ≠ minorities’).

Motivations of management? Interpretation: Management is VINCI-appointed (half the executive team via the Series BB rights). VINCI’s interests = the TA fee + 29.99% dividends + OMA’s strategic platform value, which overlap with but are not identical to minority interests. The growing pro-rata dividend is the alignment anchor; the BB veto + TA fee are the misalignment.

Valuation & Market Data

Is the stock an ADR, MLP, or K-1 issuer? Fact: ADR (NASDAQ: OMAB; 1 ADR = 8 Series B shares); also lists on the BMV as OMA. Mexican S.A.B. de C.V., foreign private issuer (files 20-F/6-K, not 10-K/10-Q). No K-1; no MLP.

Dividend policy? Fact: Fixed (Ps.325m) + variable component, paid in quarterly installments; ~6% yield, ~84–91% payout, growing. The single biggest component of expected return. Note: a USD investor bears peso translation on the MXN dividend.

How profitable is the business? Very — see Returns above (ROIC ~28–32%).

Is net income diverging from cash from operations? Fact: CFO consistently exceeds net income (Ps.7.4bn CFO vs Ps.5.3bn consolidated NI in 2025) via non-cash D&A and major-maintenance add-backs — a sign of high earnings quality, not a red flag.

Risks & Downside

What factors would cause the stock to decline? A new mid-cycle regulatory intervention (tariff cut / DTA hike); a Viva/Volaris route-rationalization or tariff squeeze; a Monterrey-specific shock (security, economic, nearshoring reversal on US tariffs); peso depreciation; a 2048-renewal scare; a dividend cut forced by the capex trough + a demand shock. (See the risk matrix.)

Risk of a catastrophic loss? Interpretation: Low. Would require concession revocation (a serious safety/revenue breach), uncompensated expropriation (OMA has reversion-indemnity rights), or systemic Mexican collapse. The conservative all-peso 1.0x balance sheet and clean compliance record make destruction unlikely.

Chance of a total loss? Interpretation: Very low. The realistic downside is value extraction (regulator/controller) and multiple de-rating (~−33% bear), not value destruction. The ~6% dividend cushions total return even in the bear case.

Recent News & Events

Has the business environment changed recently? Fact: Yes, materially in 24 months: (1) the 2023–24 tariff cut + DTA hike (5%→9%); (2) VINCI completing operational control (board reconstituted March 2026, registered office moved to Monterrey); (3) the 2026–2030 MDP + tariffs approved (Dec-2025); (4) the Viva/Volaris merger (Dec-2025, ~63% of aero revenue); (5) P&W groundings fading; (6) FAA Cat-1 restored (Sep-2023).

Significant acquisitions? None external; the industrial-park JV expanded.

Change in accounting policies? No material change. (A forward IAS 21 amendment effective 2027 is expected immaterial.)

Recent changes — new markets, facilities, management? Monterrey Terminal C at capacity → new terminal in the 2026–2030 build; new Cat-1-enabled international routes (Monterrey–SFO/Miami/Chicago/LAX); VINCI executive team installed (French senior managers in CEO/CFO/CCO/CTO roles); a VINCI-pedigree CCO appointed Sep-2025 to drive commercial per-pax.

APPENDIX B — Source Appendix

Grupo Aeroportuario del Centro Norte, S.A.B. de C.V. (NASDAQ: OMAB / BMV: OMA) · Report date 2026-06-10 Primary sources first. All filings via SEC EDGAR; all web sources accessed 2026-06-10.

1. Primary filings — SEC EDGAR (CIK 0001378239)

2. Peer / sector

3. Market & FX data

4. Industry, regulatory, and news (web)

5. Analytical frameworks applied

• Competition Demystified (Greenwald & Kahn) — moat typed as government-granted local monopoly + economies of scale + demand captivity; market-share-stability test (≈100% catchment share by legal fiat); the moat tied to a financial outcome (56% operating margin, ~74% EBITDA margin).
• Capital Returns (Marathon / Chancellor) — the regulated dual-till distorts the normal capital cycle (high returns do invite capital — but the entrant is the regulator clawing back via tariff resets, not a competing operator); the wasting-concession asset-life is the structural check on returns.

All non-obvious facts in this article carry a citation to one of the above. Management commentary (transcripts, IR) was treated as hypothesis and validated against filings and external evidence. No buy/sell recommendation or price target appears in the body; the Claude's Take block is a separate, labeled independent opinion.