Financial Performance - Q3 2025 - Revenue reached $279.4 million, a 5% increase quarter-over-quarter and a 23% increase year-over-year[47, 50] - Non-GAAP gross margin was 42.1%, up 95 bps year-over-year[47, 50] - Non-GAAP operating margin was 5.4%, exceeding the midpoint of the prior outlook[47, 50] - Non-GAAP EPS was $0.05, improved from a loss of $0.07 year-over-year[47, 50] - Free cash outflow was $5 million in Q3 2025[70] Revenue Breakdown - Q3 2025 - Optical Networking Solutions accounted for 37% of revenue[52, 53] - Subscriber Solutions accounted for 36% of revenue[52, 53] - Access & Aggregation accounted for 27% of revenue[52, 53] - US revenue was 43% of total revenue, while non-US revenue was 57%[63] - Large service providers contributed 39% of revenue, regional service providers 42%, and enterprise/ICPs 19%[64] Q4 2025 Outlook - Revenue is projected to be between $275 million and $285 million[73] - Non-GAAP operating margin is expected to be between +3.5% and +7.5%[73]

Financial Data and Key Metrics Changes - ADTRAN reported revenue of $247.7 million for Q1 2025, representing a year-over-year increase of $21.6 million or approximately 10% and a sequential increase of $4.9 million or 2% [23][24] - Non-GAAP gross margin was 42.6%, an increase of 146 basis points sequentially and 193 basis points year-over-year [27] - Non-GAAP operating profit was $10.1 million or 4.1% of revenue, compared to a non-GAAP operating profit of $6 million or 2.5% of revenue in Q4 2024 and an operating loss of $10.7 million in Q1 2024 [28] - Free cash flow for Q1 2025 was $22.9 million, a significant turnaround from negative $10.4 million in Q4 2024 [31] Business Line Data and Key Metrics Changes - Access and Aggregation Solutions generated revenue of $89.1 million, accounting for approximately 36% of total revenue, with a 10% year-over-year increase [25] - Optical Networking Solutions revenue was $78.2 million, representing a 4% year-over-year increase [25] - Subscriber Solutions revenue was $80.4 million, increasing 15% year-over-year [25] Market Data and Key Metrics Changes - Non-U.S. revenue accounted for 58% of total revenue, while U.S. revenue comprised 42% [26] - The U.S. market saw a 21% year-over-year increase in optical networking solutions, particularly from enterprise, government, and Internet content provider customers [14] Company Strategy and Development Direction - ADTRAN aims to strengthen its capital structure and enhance financial flexibility through the divestiture of non-core assets [32][36] - The company is focused on expanding its manufacturing capabilities and optimizing its supply chain to adapt to evolving trade policies [10][11] - ADTRAN's product portfolio is positioned to benefit from the growing demand for fiber infrastructure and AI-driven networking solutions [20] Management's Comments on Operating Environment and Future Outlook - Management expressed confidence in the improving market conditions and anticipated continued revenue growth, particularly in Europe [19][36] - The company is actively managing the evolving tariff landscape and believes its supply chain strategy places it in a favorable position relative to peers [21][37] - Management expects revenue for Q2 2025 to range between $247.5 million to $262.5 million, with a non-GAAP operating margin of approximately 4% [38] Other Important Information - ADTRAN's cash and cash equivalents increased to $101.3 million, reflecting a significant improvement in liquidity [31] - The company is exploring options to monetize certain non-core assets, including corporate real estate, to strengthen its financial position [32] Q&A Session Summary Question: Outlook for growth across revenue segments - Management indicated that growth in Access and Aggregation was strong, while Subscriber Solutions faced supply-related challenges but is expected to improve [40][41] Question: Margin pressure in Q2 - Management confirmed that margin pressure is primarily due to operating expenses related to foreign exchange, not gross margin [45][46] Question: Customer pull-ins ahead of tariffs - Management noted minimal evidence of customer pull-ins and emphasized a cautious approach to inventory management [49][50] Question: Macro environment in Europe - Management highlighted strong demand in Europe, with significant opportunities for growth as large carriers expand their deployment plans [51][52] Question: Supply chain and component sourcing - Management confirmed that most supply chain contingencies have been moved outside of China, minimizing tariff impacts [70][72] Question: Competitive positioning and technological advantages - Management believes ADTRAN has a strong product offering, particularly in optical and fiber access solutions, and is well-positioned against competitors [76][78]