Amphenol (APH) Q4 2025: IT Datacom Orders Surge 68%, Fiber Reach Expands with CommScope

Amphenol closed 2025 with a record $8.4B in orders, up 68% year-over-year, propelled by accelerated AI infrastructure demand and a strong book-to-bill of 1.31. The company’s strategic acquisition of CommScope completed ahead of schedule, broadening Amphenol’s fiber optic and high-speed interconnect portfolio for data centers and communications networks. Management’s guidance signals sustained momentum into 2026, with organic growth, disciplined capital deployment, and operational leverage all supporting a robust outlook.

Summary

  • AI Demand Drives Orders: Robust AI infrastructure investment sharply increased IT Datacom bookings and visibility.
  • Portfolio Expansion with CommScope: Acquisition deepens fiber optic and industrial interconnect offerings, enhancing end-market reach.
  • Operational Discipline Endures: Margin strength and cash flow resilience support continued investment and shareholder returns.

Performance Analysis

Amphenol delivered record fourth quarter sales and earnings, with total revenue reaching $6.4B and organic sales up 37% year-over-year. The standout performance came from the IT Datacom segment, which contributed 38% of total Q4 revenue and grew 110% organically, fueled by surging AI-related demand. The communications solutions segment also posted a 70% increase, reflecting both organic growth and recent acquisitions. Orders hit a historic $8.4B, up 68% YoY, driving the book-to-bill ratio to 1.31, a clear signal of sustained demand pipeline.

Adjusted operating margin held steady at a record 27.5%, up 510 basis points YoY, as operating leverage from higher volumes offset modest acquisition dilution. Free cash flow conversion remained strong at 123% of net income for the quarter, despite elevated capital expenditures to support growth. The company maintained a disciplined working capital profile, with inventory, receivables, and payables all within historical norms. Capital return to shareholders for the full year reached $1.5B, combining buybacks and a 52% dividend increase, underscoring management’s balanced approach to growth and returns.

  • AI-Led IT Datacom Surge: IT Datacom revenue grew 110% organically, now comprising over one-third of sales.
  • Segment Breadth Maintained: Harsh Environment and Interconnect & Sensor segments also delivered double-digit growth, supporting diversified exposure.
  • Operating Margin Resilience: Adjusted margin expansion of 510 bps YoY reflects strong execution and scale benefits.

With the CommScope acquisition closed in January, Amphenol’s forward revenue base and technology breadth are positioned for further expansion as 2026 begins.

Executive Commentary

"These results once again reaffirm the value of the discipline and agility of our entrepreneurial organization as we continue to perform well amidst a very dynamic environment."

Adam Norwit, CEO

"I'm extremely proud of the company's operating margin performance in the fourth quarter and for the full year of 2025, both of which reflect continued strong execution by the team."

Craig Lampo, CFO

Strategic Positioning

1. AI Infrastructure and IT Datacom Leadership

Amphenol’s core growth engine remains its IT Datacom segment, now at 38% of Q4 revenue, where the company’s high-speed and power interconnect products are critical for next-generation AI data centers. Management emphasized that bookings strength is underpinned by broad customer breadth, not just a few hyperscalers, and that customer commitments are enabling Amphenol to invest confidently in capacity and automation. The company’s deep in-house automation capabilities provide a competitive edge as customers demand more complex, higher-spec products for AI workloads.

2. Fiber Optic and Portfolio Expansion via CommScope

The early closure of the CommScope acquisition, now rebranded as “CommScope, an Amphenol company,” significantly expands Amphenol’s fiber optic interconnect and industrial connectivity portfolio. This move positions Amphenol to offer a full spectrum of copper, fiber, and power solutions for both data center and communications network customers. Management expects CommScope to add $4.1B in sales and $0.15 to adjusted EPS in 2026, with integration focused on leveraging Amphenol’s culture rather than traditional “synergy” playbooks.

3. Diversification Across End Markets

Amphenol’s broad end-market exposure (defense, industrial, automotive, mobile devices, communications networks) mitigates volatility and enables participation in multiple electronics growth cycles. Notably, defense sales rose 44% in Q4, with growth geographically broad-based, particularly in Europe. Industrial and automotive segments both saw double-digit organic growth, with management highlighting resilient demand and share gains, especially in Europe where sentiment had been negative. This diversification is central to Amphenol’s ability to sustain growth despite cyclical swings in any single end market.

4. Acquisition-Driven Scale and Capabilities

Five acquisitions in 2025 (including Trexon and Andrew) added nearly $2B in annualized sales, deepening value-add interconnect offerings and broadening customer solutions. The company’s M&A strategy targets complementary technologies and markets, with a focus on retaining operational autonomy and local management, rather than forced integration, to preserve entrepreneurial agility at scale.

5. Financial Flexibility and Capital Allocation

With pro forma net leverage at 1.8x post-CommScope, Amphenol retains ample liquidity ($6.9B) and capacity for disciplined capital investment, including ongoing buybacks and a commitment to maintaining capex in the 3-4% of sales range. Management’s focus on cash flow conversion and return on invested capital remains central to the long-term strategy.

Key Considerations

Amphenol’s Q4 marks an inflection in both demand visibility and technology breadth, as secular AI trends and the CommScope acquisition reshape the company’s growth profile for 2026 and beyond.

Key Considerations:

  • AI Momentum Underpins Visibility: Record orders and customer commitments in IT Datacom provide multi-quarter demand clarity, supporting continued investment and capacity expansion.
  • Fiber Optic and Copper Portfolio Synergy: CommScope brings depth in fiber, enabling Amphenol to address the full range of customer network architectures as data center power and bandwidth requirements evolve.
  • End-Market Resilience: Defense, industrial, and automotive segments delivered broad-based growth, with notable strength in Europe and early signs of recovery in mobile devices.
  • Margin and Cash Flow Discipline: Operating leverage and tight capital controls allowed Amphenol to expand margins and sustain high free cash flow conversion, even as capex rose to support growth.
  • Integration Philosophy: Management’s “no integration, no synergy” approach seeks to preserve acquired talent and local autonomy, aiming for cultural fit and long-term value rather than short-term cost cuts.

Risks

Key risks include potential cyclicality in IT Datacom demand if AI buildouts slow, integration challenges with large-scale acquisitions, and rising input costs (notably metals) that could pressure margins if not offset by operational efficiency. Geopolitical and regulatory developments, particularly in defense and international markets, may also affect growth trajectories, though Amphenol’s local operating model provides some insulation.

Forward Outlook

For Q1 2026, Amphenol guided to:

  • Sales of $6.9B to $7.0B, reflecting 43% to 45% YoY growth
  • Adjusted diluted EPS of $0.91 to $0.93, up 44% to 48% YoY

For full-year 2026, management expects:

  • CommScope to contribute $4.1B in sales and $0.15 to adjusted EPS

Leadership highlighted sustained AI infrastructure demand, broad-based end-market strength, and continued focus on operational agility as key drivers for the coming year:

  • AI and data center demand expected to remain robust, supporting organic growth
  • CommScope integration to expand technology reach and customer solutions

Takeaways

Amphenol’s Q4 and full-year results demonstrate a business at the intersection of secular technology demand and disciplined execution.

  • Order Book Sets Tone for 2026: Record $8.4B in Q4 bookings, led by AI, signals strong multi-quarter growth visibility.
  • Portfolio and Market Diversification: CommScope and recent M&A broaden technology and end-market reach, reducing exposure to single-market volatility.
  • Watch for Margin and Integration Dynamics: Investors should monitor margin trends as CommScope ramps, and the sustainability of AI-driven demand across IT Datacom and communications segments.

Conclusion

Amphenol enters 2026 with record demand, expanded technology breadth, and operational strength, positioning the company for continued outperformance as secular AI and connectivity trends accelerate. The balance of organic growth, disciplined capital allocation, and acquisition-driven scale remains central to the long-term thesis.

Industry Read-Through

Amphenol’s results reinforce the breadth and urgency of AI-driven infrastructure investment across the electronics supply chain. The company’s order surge and customer commitments suggest that hyperscaler and enterprise data center buildouts are not only robust but also increasingly complex, requiring both copper and fiber interconnect solutions. Competitors in fiber optics, power management, and automation are likely to see similar tailwinds, while those exposed to legacy or single-technology architectures may face share loss. The resilience in industrial, automotive, and defense end markets also signals a broader electronics recovery, with Europe emerging as a relative outperformer. Investors should watch for continued M&A and portfolio reshaping across the sector as technology convergence and customer requirements accelerate.