ADTN

ADTRAN Holdings is rated Hold as it pivots toward optical networking, with hyperscaler and enterprise revenue growth offset by supply constraints. Q2 revenue missed guidance at $281.1M, with gross margin dropping to 40.7% and supply tightness impacting multiple product lines and near-term visibility. Optical Networking now drives 39% of revenue; customer diversification is improving, but new products offer limited near-term upside.

ADTN has plunged 46.2% in three months as execution issues hit margins, but fiber broadband and AI networking trends keep its long-term growth story alive.

ADTN's fiber broadband and AI networking opportunities remain strong, but execution challenges and weaker earnings outlook suggest patience may be the better strategy.

ADTN is expanding its AI networking portfolio, but execution issues and margin pressure may delay the payoff from growing AI infrastructure demand.

ADTN, AGESY and EC have been added to the Zacks Rank #5 (Strong Sell) List on August 5th, 2026.

ADTRAN Holdings, Inc. (ADTN) Q2 2026 Earnings Call Transcript

ADTN beats earnings and revenue estimates in Q2 2026 with optical networking sales growth and a growing innovation pipeline supporting its outlook.

ADTRAN NASDAQ: ADTN reported second-quarter 2026 revenue of $281.1 million, up 6.1% from a year earlier, as growth in optical networking and cloud-related demand was partly offset by a project delay at a single customer and supply constraints that limited shipments of some higher-margin products.

SENDAI, Japan--(BUSINESS WIRE)-- #5G--Adtran today announced that TOHKnet has completed Japan's first live network trial demonstrating the coexistence of 50G PON, XGS-PON and EPON on a single fiber. Conducted in Sendai using Adtran's SDX 6400 Series OLT, the demo showed how the platform enables three generations of PON technology to operate together in a live service environment. The results highlight a realistic path for operators to introduce 50G PON capacity while maintaining continuity for existi.

HUNTSVILLE, Ala.--(BUSINESS WIRE)--ADTRAN Holdings, Inc. (NASDAQ: ADTN and FSE: QH9) (“ADTRAN Holdings” “ADTRAN” or the “Company”) today announced its unaudited financial results for the second quarter ended June 30, 2026. Revenue: $281.1 million, up 6.1 % year-over-year. GAAP gross margin of 37.0%; non-GAAP gross margin of 40.7%. GAAP operating margin of -3.6 %; non-GAAP operating margin of 3.8%. Net cash provided by operating activities of $25.9 million. GAAP diluted loss per share of $0.13;.