ADTRAN, Inc. Q2 2026 Earnings Recap

Shares dropped 10.7% as investors reacted negatively to supply-chain-driven shipment delays and unfavorable product mix that pressured margins and dragged revenue below guidance.

Key Takeaways

• Revenue totaled $281.1 million, up 6.1% year-over-year, but below original guidance due to a delayed project from a key customer and supply constraints.
• Optical Networking grew 22% year-over-year, driving broad-based demand across service provider, enterprise, government, and cloud segments.
• Access & Aggregation Solutions revenue declined 5% year-over-year, impacted by customer timing shifts outside the U.S., partially offset by 13% growth in U.S. orders.
• Gross margin contracted to 40.7% from 41.4% a year ago and 43% in the prior quarter due to mix headwinds and elevated product costs amid supply shortages.
• Non-GAAP operating margin improved slightly year-over-year to 3.8% but fell sharply sequentially from 6.9%, reflecting margin compression pressures.