ADTRAN Q2 Revenue Misses Guidance, but Optical Strength Partially Offsets the Weakness
ADTN sits 16% above its 52-week low of $7.11.
Summary
ADTRAN reported Q2 2026 revenue of $281.1M, missing its guidance range, but optical networking revenue grew 22% YoY and enterprise/ICP revenue surged 47%. Q3 guidance implies a recovery, with revenue expected between $275M and $295M.
Key Events · Earnings and Guidance · ADTN
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Q2 Revenue Misses Guidance
Revenue of $281.1M fell short of the $283M–$303M guidance range, though it grew 6.1% year-over-year. A single customer project delay and unfavorable product mix were cited as the primary headwinds.
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Optical Networking Surges 22%
Optical networking solutions revenue reached $109.7M, up 22% YoY and 13% sequentially, driven by AI infrastructure demand and vendor replacement in Europe.
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Enterprise/ICP Revenue Jumps 47%
Revenue from enterprise, internet content providers, and government customers grew 47% YoY to $71.3M, now representing 25.4% of total revenue, up from 18.3% a year ago.
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Margins Compressed by Mix Shift
Non-GAAP gross margin fell to 40.7% from 41.4% a year ago, and GAAP operating margin swung to -3.6% from 2.2% in Q1 2026, reflecting the impact of customer and product mix on profitability.
Analysis · ADTN · Manufacturing
ADTRAN's Q2 revenue of $281.1M landed below its own $283M–$303M guidance range, while the GAAP operating margin swung to -3.6% from 2.2% sequentially. A single customer project delay and unfavorable product mix drove the miss, compressing gross margins. Yet optical networking revenue surged 22% year-over-year, and enterprise/ICP revenue jumped 47%, now accounting for a quarter of total sales. Management issued Q3 revenue guidance of $275M–$295M with a non-GAAP operating margin of 1.5%–5.5%, signaling confidence that the Q2 headwinds are temporary. The balance sheet remains strained with $79M in cash against $219M in debt, but the recent credit facility refinancing provides breathing room. This earnings report is notable because it confirms the preliminary miss announced on July 22, while adding granularity on the optical growth story and forward guidance that could stabilize the stock.
At the time of this filing, ADTN was trading at $8.24 on NASDAQ in the Manufacturing sector, with a market capitalization of approximately $717.6M. The 52-week trading range was $7.11 to $19.98. This filing was assessed with neutral market sentiment and an importance score of 7 out of 10.