Grupo Aeroportuario del Sureste, trading on the New York Stock Exchange under the ticker ASR, is one of three publicly listed Mexican airport operators holding long-term concessions from Mexico's federal government. The company operates nine airports in Mexico's southeast region, including the major tourist gateway of Cancún, alongside six airports in Colombia, two in Puerto Rico, and a newly acquired portfolio of US commercial airports acquired in December 2025. ASUR, as the company is known, sits at an inflection point where traffic declines across its core Mexican and Caribbean footprint collide with the financial engineering and integration costs of its first major US expansion, producing a quarter in which revenue grows nearly ten percent while EBITDA falls by a similar magnitude.
Second quarter 2026 revenue reached Ps.9,579.0 million, a 9.9 percent increase over the prior year period, driven almost entirely by the consolidation of ASUR US Commercial Airports, which contributed Ps.443.8 million of incremental top-line revenue. Without that acquisition contribution, organic revenue growth is modest, reflecting the 2.7 percent decline in consolidated passenger traffic that saw Mexican operations fall 5.0 percent, Puerto Rico decline 3.5 percent, and Colombia provide the only bright spot with 3.6 percent growth. The divergence between revenue growth and traffic decline reflects tariff increases and non-aeronautical revenue strength, but it also masks a deteriorating margin profile that warrants close attention.
EBITDA for the quarter fell 8.7 percent to Ps.4,589.9 million, with the adjusted EBITDA margin compressing from 67.6 percent to 62.0 percent, a 560 basis point decline that signals the cost structure of the newly acquired US assets is materially less efficient than the legacy Mexican concession portfolio. Net income still managed a 5.0 percent increase to Ps.2,384.6 million, and earnings per American Depositary Share rose 7.1 percent to $4.38, supported by financial income on the company's substantial cash position and the contribution from equity-method investees. The gap between EBITDA contraction and net income expansion reflects the non-operating side of the income statement, where interest income on Ps.11,641.4 million of cash and investments provides a meaningful cushion.
The balance sheet shows a company that has levered up to fund its US expansion. Net debt of Ps.15,138.3 million translates to a Net Debt to LTM EBITDA ratio of 0.9 times, a comfortable level that reflects ASUR's historically conservative capital structure, but a significant increase from the net cash position the company maintained for years prior to the December 2025 acquisition. Capex surged 40.3 percent to Ps.1,950.3 million, reflecting both ongoing master development plan obligations at the Mexican concessions and capital deployment into the newly acquired US airports, which require investment to bring facilities to the operational standards ASUR expects across its portfolio.
The investment thesis at current prices rests on whether the US airport portfolio can be integrated and optimized to deliver margins closer to ASUR's historical norms, and whether Mexican traffic recovers from the current softness. Cancún, which dominates the Mexican portfolio, has faced headwinds from reduced international tourist arrivals tied to geopolitical tensions, Hurricane Beryl's lingering impact on Caribbean travel demand, and competitive pressure from alternative destinations. The Mexican traffic decline of 5.0 percent is concentrated in international segments, while domestic traffic has shown more resilience, suggesting the issue is demand-side rather than capacity-side.
ASUR's competitive position within Mexico remains structurally sound. The concession framework, which runs through 2048 with possible extensions, grants the company effective monopolies at each of its nine airports, with tariff structures set through a regulated maximum revenue per passenger formula that provides predictable inflation-linked pricing power. The regulatory framework has historically allowed ASUR to maintain the highest EBITDA margins among the three Mexican airport operators, and the 62.0 percent adjusted margin this quarter, while compressed, still exceeds most global airport peers. The question is whether that margin advantage survives the integration of the US assets, which operate under a fundamentally different regulatory and labor cost structure.
The Colombian operations, centered on AirPlan's six airports, continue to grow traffic and contribute positively, with the 3.6 percent passenger increase in the quarter demonstrating the geographic diversification benefit of ASUR's Latin American expansion beyond Mexico. The Puerto Rico operations, which include the San Juan airport, face a different dynamic, with the 3.5 percent traffic decline reflecting broader Caribbean tourism softness and the impact of capacity adjustments by major carriers serving the island.
Investors evaluating ASR at current levels must weigh a near-term margin compression story against a medium-term thesis of US asset optimization and traffic recovery. The company's proven operational expertise, conservative balance sheet, and regulated monopoly economics provide a margin of safety that most infrastructure operators lack. The valuation, however, now reflects a more complex story than the simple Mexican airport concession play that characterized ASUR for most of its public market history, and the discount or premium the market assigns should track the credibility of management's integration execution over the next four to six quarters.