ADTN · ADTRAN Holdings, Inc.

ADTRAN Holdings reported preliminary Q2 2026 results that fell short of its previously issued guidance, primarily due to a project delay from a single customer and an elevated cost environment for components and freight. Revenue is expected between $280 million and $282 million, versus the guided range of $283 million to $303 million. GAAP operating margin is projected at (3.2)% to (4.0)%, while non-GAAP operating margin of 3.5% to 4.0% missed the 5.0% to 9.0% guidance. GAAP loss per share ranges from $(0.12) to $(0.14), and non-GAAP EPS of $0.03 to $0.05 underscores the margin pressure. Management attributed the shortfall largely to a discrete customer issue, emphasizing that the underlying business and strategic priorities remain intact. Notably, the optical networking segment continued to show strength, and the innovation pipeline is expanding the addressable market. For Q3 2026, ADTRAN guides revenue of $275 million to $295 million and non-GAAP operating margin of 1.5% to 5.5%, indicating ongoing margin headwinds. The company reiterated its commitment to its long-term strategy and expects to provide final results on August 3, 2026. The preliminary nature of these figures introduces uncertainty, and the wide guidance range for Q3 suggests management sees variability in near-term demand and cost dynamics. Overall, the release highlights short-term operational challenges but maintains a positive narrative on the company's competitive positioning and product portfolio.