Earnings Recap — Q2 FY2026
CY Q3 2026 · Reported August 3, 2026 · Beat 3 of last 7 quarters
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ADTRAN's optical networking growth, driven by hyperscaler and cloud demand, underscores the ongoing buildout of AI and cloud data center connectivity. The company's push into intra-data center products like LiteWave800 and MicroMux Quattro positions it to benefit from the next phase of AI infrastructure expansion. However, persistent supply chain constraints highlight the broader industry challenge of meeting surging demand for optical components.
ADTRAN reported Q2 revenue of $281.1M, up 6.1% YoY but below guidance, due to a project delay from a single customer and supply constraints that limited shipments of higher-margin products. Optical networking grew 22% YoY to $109.7M, while Access & Aggregation fell 5% YoY and Subscriber Solutions was up 1% YoY. Non-GAAP gross margin declined to 40.7% and operating margin fell to 3.8%, with EPS of $0.04. The company generated $25.9M operating cash flow and $8.7M free cash flow, and completed a refinancing that reduced borrowing costs by 200 bps.
Management guided Q3 2026 revenue to $275M-$295M and non-GAAP operating margin to 1.5%-5.5%, reflecting continued supply tightness and no immediate rebound from the delayed customer. They reaffirmed long-term gross margin target of 42%-43% and 10% operating margin, with a path to double-digit operating margin at revenue around $310M-$320M. Optical networking is expected to continue growing, driven by hyperscaler and cloud demand, while Access & Aggregation remains pressured by the single-customer timing. Supply chain constraints are expected to persist, prompting actions like redesigns, price increases, and strategic inventory builds. The company completed a refinancing that reduced borrowing costs by 200 bps and extended maturity to 2031.
“To be clear, absent these incremental supply constraints, we would have met our original revenue guidance.”
on Supply constraints impact on revenue
“We have started doing some redesigns, and that's just to give us more supplier flexibility. I think the gross margin piece is not the -- I don't worry so much about gross margin because I don't think we're in a really bad place.”
on Margin mitigation strategies
“I can tell you would mitigate a particular chip today, but I can tell you it will be a different chip or a different problem 6 months from now. So I just think we're living in a tight period right now.”
on Supply chain outlook
Can you help us understand the nature of the project delay at the single large customer? Is this more of a financial or strategic decision on their end? And what gives you assurance that this is demand deferred and not demand destroyed?
The customer has recommitted to their plan, including timing. They have multiple plans in flight—footprint expansion, Huawei replacement, speed upgrades—and are repositioning priorities among them. We expect one of the other plans to kick in sooner than originally planned. This is a timing adjustment, not a change in demand.
Maybe just following up on the last question and your comment about supply impacts on higher gross margin products. I think we've all been assuming that memory has been a big concern... So maybe you can kind of unpack kind of the customer prem side gross margin trend as well as your comment around higher gross margin products were impacted on supply?
Supply issues are broader than memory—optical amplifiers, certain silicon, and even PC boards are tight. Memory supply has improved, though pricing remains high. The lack of flexibility to flex up for incremental demand, especially in optical, impacted our ability to ship higher-margin products.
Regarding the revenue miss, obviously, it was a project delay, but it sounds like if you had enough components that you would have made up that revenue. Was that the message? Basically, you're saying that demand is so strong that it would have made up that $12 million revenue shortfall if you had enough components?
Yes, without a doubt. If we had plenty of material, we would not be talking about the downtick.