Amphenol Corp’s Q1 2026 Call: Book-to-Bill Drivers and Margin Dilution Contradictions Emerge

Date of Call: Apr 29, 2026

Financials Results

• Revenue: $7.6B, up 58% YOY in U.S. dollars, 57% in local currencies, 33% organically
• EPS: $1.06 adjusted diluted EPS, up 68% YOY
• Operating Margin: 27.3% adjusted operating margin, up 380 basis points YOY, down 20 basis points sequentially

Guidance:

• Q2 sales expected in range of $8.1B to $8.2B, representing 43% to 45% growth YOY.
• Q2 adjusted diluted EPS expected in range of $1.14 to $1.16, representing 41% to 43% growth YOY.

Business Commentary:

Record Sales and Organic Growth:

• Amphenol Corporation reported record sales of $7.6 billion for Q1 2026, up 58% in U.S. dollars and 33% organically compared to Q1 2025.
• The growth was driven by robust demand across nearly all served markets, particularly in IT datacom, defense, commercial air, and industrial sectors.

Strong Order Growth and Book-to-Bill Ratio:

• The company booked record orders of $9.435 billion, up 78% from Q1 2025, resulting in a strong book-to-bill ratio of 1.24:1.
• This was due to robust bookings in all end markets, with significant contributions from the IT datacom and defense sectors.

IT Datacom Market Dominance:

• Sales in the IT datacom market grew by 99% in U.S. dollars and 81% organically, making up just over 40% of total sales.
• This was driven by the continued acceleration in demand for products used in AI applications, alongside strong growth in the base IT datacom business.

Defense Market Growth:

• The defense market represented 8% of sales, with a 44% increase in U.S. dollars and 25% organically from the prior year.
• Growth was broad-based across virtually all segments of the defense market and geographies, fueled by increased investments in next-generation defense technologies.

Industrial Market Performance:

• The industrial market, representing 20% of sales, saw a 52% increase in U.S. dollars and 16% organically, driven by accelerating demand across most segments.
• Growth was noted in areas such as instrumentation, electrification, and oil and gas, although there was a slight moderation in marine segments.

Sentiment Analysis:

Overall Tone: Positive

• Management described results as 'outstanding,' 'impressive,' and 'record sales.' They noted 'strong' growth across segments, 'robust' book-to-bill, and 'more encouraged than ever' about the IT datacom market. The tone was confident regarding long-term opportunities in AI and defense, with statements like 'the long-term prospects for this industry and for this market and for Amphenol's position are very strong.'

Q&A:

• Question from Mark Delaney (Goldman Sachs): Concerns about the implications of Co-Packaged Optics (CPO) for Amphenol's revenue and profit potential over the next 2-4 years, especially given the CommScope acquisition.
  Response: Amphenol now has the broadest product suite (copper, power, optics) and proven execution capability, positioning it strongly for future architectures, whether CPO or other solutions, and expects to be a key partner for customers' long-term needs.

• Question from Andrew Buscaglia (BNP Paribas): Inquiry about customer feedback and momentum in IT datacom, and the implications for 2027 from the fiber portfolio.
  Response: Orders remain strong across markets; customers indicate they want more product. The CommScope acquisition provides a complementary data center opportunity (rack-to-rack connectivity) and strengthens Amphenol's position in the AI ecosystem.

• Question from Amit Daryanani (Deutsche Bank): Question on funding capacity ramps for AI-driven growth and the potential for multi-year capacity agreements.
  Response: Amphenol relies on agility and customer partnerships; more customers are making commitments (not formal long-term agreements) to support Amphenol's capacity and automation investments, which are necessary given the rapid sales growth.

• Question from Joseph Spak (UBS): Question on how the desire for new players to diversify risk among data center customers might change Amphenol's profit opportunity.
  Response: Amphenol is not a sole source and welcomes competition; the unique ability to execute and deliver proven technology is what customers value most, and this dynamic is not a meaningful change from historical business practices.

• Question from Samik Chatterjee (JPMorgan): Inquiry about CommScope's demand progress relative to early growth milestones and any supply constraints.
  Response: CommScope's growth has outperformed initial expectations (matching Amphenol's organic growth) and they are meeting customer demand well; Amphenol is supportive of their growth and will provide necessary investments.

• Question from William Stein (Truist Securities): Question on whether Amphenol can succeed across various emerging optical and copper technologies (e.g., pluggables, near package optics, co-packaged optics).
  Response: Amphenol has a broad array of active and passive products in both copper and optics, offering the most comprehensive portfolio to customers evaluating different architectures, which positions it well to capture share across multiple evolving technologies.

• Question from Asiya Merchant (Citigroup): Inquiry about pricing power to pass through costs and the drivers behind the strong book-to-bill ratio.
  Response: Strong margins resulted from execution, cost discipline, and price/value actions; book-to-bill strength is driven by some customers opening up order apertures due to investments, but not indicative of broad extended lead times.

• Question from Steven Fox (Fox Advisors): Question on the synergy between Amphenol and CommScope in the commercial buildings (building connectivity) market.
  Response: The building connectivity business is new and complementary for Amphenol; combining CommScope's channel and market position with Amphenol's interconnect and sensor expertise creates new value creation opportunities in smart buildings.

• Question from Wamsi Mohan (Bank of America): Question on Amphenol's share potential in optical scale-up solutions, given its strong position in copper scale-up with leading GPU players.
  Response: Amphenol will compete for optical business as architectures evolve, relying on its team to earn it; competition is healthy and similar to the copper space, where it has successfully captured share.

• Question from Scott Graham (Seaport Research Partners): Request for a breakdown of the 16% organic growth in the industrial segment.
  Response: Growth was broad-based across most sub-segments (instrumentation, electrification, oil & gas, lighting, medical, heavy equipment, factory automation, 'Other'), with only minor softness in RMT/marine.

• Question from Luke Junk (Baird): Inquiry about Amphenol's leverage in the defense electronics platform, especially for interceptors and munitions.
  Response: Amphenol is the world leader in defense interconnect, having expanded its product suite and capacity; increased defense spending on next-gen technologies positions it well for long-term structural demand growth.

• Question from Joseph Giordano (TD Cowen): Question on the interplay between value (ASP) and material (pounds of wire, length) in new, more complex data center architectures.
  Response: Amphenol is enabling next-gen systems with higher power interconnect solutions but declined to provide specific metrics on pounds or length, focusing instead on its broad portfolio to meet evolving customer needs.