HUNTSVILLE, Ala. -- ADTRAN Holdings, Inc. (NASDAQ: ADTN and FSE: QH9) (“ADTRAN Holdings” or the “Company”) today announced preliminary unaudited revenue, as well as GAAP and non-GAAP operating margin, for the fiscal quarter and year ended December 31, 2025.
This press release announcement is being provided due to German ad hoc disclosure requirements following, among others, the Company's expected outperformance relative to its previously issued revenue guidance. All figures in this release are preliminary and subject to completion of the Company's quarter- and year-end financial close procedures.
For the fourth quarter of 2025, preliminary revenue is expected to be in the range of $290.0 million to $293.0 million, exceeding the Company’s previously announced guidance range of $275.0 million to $285.0 million. Full year preliminary U.S. GAAP revenue is expected to be between $1,082.2 million to $1,085.2 million.
Preliminary GAAP operating margin for the fourth quarter is expected to be between 1.4% to 1.7%. Preliminary non-GAAP operating margin for the fourth quarter is expected to be between 6.0% to 6.9%, which is within our previously announced guidance range of 3.5% to 7.5%.
Full year preliminary GAAP operating margin is expected to be between (1.5)% to (1.4)%, while full year preliminary non-GAAP operating margin is expected to be between 4.6% to 4.9%.