Adtran Holdings cuts Q2 revenue outlook, citing single customer delay

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ADTRAN Holdings, Inc. announces certain preliminary second quarter 2026 results

July 22, 2026 12:00 AM EDT

HUNTSVILLE, Ala.--(BUSINESS WIRE)-- ADTRAN Holdings, Inc. (NASDAQ: ADTN and FSE: QH9) (ADTRAN Holdings or the Company) today announced preliminary unaudited revenue, preliminary GAAP and non-GAAP operating margin, and preliminary GAAP and non-GAAP basic and diluted earnings per share for the fiscal quarter ended June 30, 2026.

This press release announcement is being provided due to German ad hoc disclosure requirements following, among others, the Company's performance relative to its previously issued revenue guidance. All figures in this release are preliminary and subject to completion of the Company's quarter-end financial close procedures.

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