Earnings Highlights: Amphenol (APH) | Q2 FY2026 — Book-to-Bill Hits 1.23 as Amphenol Goes "All In on Copper, Fiber and Power" to Become AI Interconnect's Full-Stack Toll Collector
This isn't just a pretty quarter; it's a structural gear shift. Revenue of $8.76B, up 55% YoY (+30% organic), and adjusted EPS of $1.35, up 67% YoY, all above the top of guidance. The truly startling number is orders: $10.73B and a 1.23 book-to-bill — for every $1 of revenue booked, $1.23 of new orders came in — and all seven end markets posted a book-to-bill above 1.
AI is the only theme, and Amphenol refuses to bet on a single path. IT datacom is 43% of revenue and grew 63% organically. Management is going all-in on all three interconnect paths — copper, fiber and power — and answers the "copper vs. optics" debate with one line: "customers want more of everything." That puts Amphenol upstream of the architecture fight, collecting rent, rather than wagering on any one medium.
The CommScope deal flipped from "dilutive" to "money printer." Its full-year contribution was raised to $4.6B in revenue and $0.30 in EPS (from $4.1B / $0.15). Quarterly revenue topped $1.2B, operating margin rose above 20%, and IT datacom alone (all optical) nearly doubled YoY.
This article is for technology and industry trend analysis only and does not constitute investment advice.
1. Revenue and financials: the beat is no surprise — the orders are
Revenue $8,758.1M (~$8.76B), +55% YoY (+30% organic); +15% QoQ (+13% organic). A record high.
Gross margin 40.5%, +4.1pp YoY.
GAAP operating income $2,584.6M, operating margin 29.5%, +82% YoY; adjusted operating margin 29.8%, +420bps YoY and +250bps QoQ. Even excluding the $80M ($0.04/share) net benefit from IEEPA tariff refunds, operating margin was still close to 29%.
GAAP net income $1,769.2M, +62% YoY; GAAP diluted EPS $1.37 (+59% YoY); adjusted EPS $1.35 (+67% YoY, vs. $0.81 a year ago).
Operating cash flow $1.6B (88% of net income), free cash flow $1.2B (68%); quarterly EBITDA $3.0B, net leverage just 1.3x.
But the real signal this quarter isn't on the income statement — it's in the order book. Orders of $10.73B, +94% YoY and +14% QoQ, a 1.23 book-to-bill, and not one of the seven end markets negative. Even stripping out the CommScope contribution, organic orders were still up 63% YoY. A 1.23 book-to-bill means plainly that demand is running ahead of shipments: this quarter's high base is not a ceiling but next quarter's floor.
This combination of "revenue beat plus even stronger orders" mirrors the lengthening AI order visibility we saw in Earnings Highlights: Broadcom (AVGO) | Q2 FY26 — two ends of the same supply chain corroborating each other.

2. Segment breakdown: Communications Solutions carries more than half the company
Three segments (Q2 FY2026 revenue / YoY / operating margin):
Communications Solutions: $5,383.6M, +85% YoY (+42% organic), operating margin 33.6%. This is the main battleground for AI and CommScope — one segment now accounts for 61% of company revenue, and it carries the highest margin.
Harsh Environment Solutions: $1,856.8M, +28% YoY (+22% organic), operating margin 30.1%. The core high-reliability connector business for defense, industrial and aerospace.
Interconnect and Sensor Systems: $1,517.7M, +17% YoY (+13% organic), operating margin 21.0%.
Zooming out to the seven end markets, this quarter's divergence is telling: IT datacom was 43% of revenue, +89% YoY (+63% organic) and +22% QoQ, with almost all sequential growth coming from AI-related products. The other markets were "mostly healthy, one headwind": industrial +56% (+18% organic), defense +37% (+24% organic), commercial air +22%, mobile devices +17% (+14% organic). The only market with an organic decline was communications networks (11% of revenue; +55% in USD thanks to CommScope, but -6% organic), and management expects another sequential decline of roughly mid-double digits next quarter.
In other words, the fuel for Amphenol's growth engine is increasingly concentrated in one tank: AI data centers.
3. Business highlights: no bet on a single medium — copper, fiber and power, all in
The most memorable part of this call was Amphenol's stance on the "copper vs. optics" fight in AI interconnect.
When analysts asked the customary "copper vs. fiber" question, CEO Adam Norwitt answered: customers want "more of everything" — more high-speed copper, more fiber, more power interconnect. Amphenol doesn't bet on which medium wins; it aims to lead on all three paths at once: high-speed copper, optics (passive optical plus active optics), and AI power interconnect. This "medium-neutral" positioning essentially places Amphenol upstream, collecting rent on the architecture fight — whether customers pick copper, optics or backplanes, its content only goes up.
This shows up clearly in several technical details:
Power interconnect has been elevated to the same importance as high-speed signal. Management boils AI down to "turning electrons into tokens," and the value of power interconnect is burning fewer electrons per token. From busbars running deep in the rack straight to the chip, to power distribution at the data center entrance, plus higher voltages, liquid cooling and sensors embedded in connectors to make "smart power connectors" — this is a growth axis the market underrates but Amphenol takes very seriously. For the full physics-and-timing breakdown of copper moving into the rack, see Computex 2026 Keynote: The Copper Wall Is Moving Into the Rack.
Architecture swings between backplane, cable and PCB are an opportunity for Amphenol, not a threat. When an analyst flagged that a cableized spine backplane might revert to PCB, Norwitt reframed the question: Amphenol does cable, PCB, PCB assembly and cable assembly, so it catches the business whichever way customers go — the only constant is "more content." This is the most pragmatic play in the "optics in, copper out — or the reverse?" debate; for further reading see Optics In, Copper Out — or Copper In, Optics Out? The Routing Battle Among AI Compute Giants.
Two bolt-on acquisitions. During the quarter Amphenol closed El.Com Srl (Italy, ~$150M annual revenue, complex interconnect and high-voltage cabling for industrial, defense and commercial aerospace) and Wilder Technologies (Washington State, US, ~$15M annual revenue, test and measurement solutions for high-speed interconnect, already an Amphenol supplier). Both are small, but the direction is consistent: filling out capabilities in high speed and high reliability.
4. CommScope: from dilutive deal to the quarter's biggest surprise
If you pick the biggest perception reset of the quarter, it's CommScope.
The full-year contribution was raised in one go from $4.1B revenue / $0.15 EPS to $4.6B / $0.30. Quarterly revenue already topped $1.2B, and operating margin (including acquisition amortization) is above 20%. Management specifically clarified that the raise is not from price increases but from across-the-board operational execution in factories, supply chain and SG&A — the result of plugging a team whose potential had not been fully unlocked into the Amphenol system.
More importantly, product mix: CommScope's IT datacom (almost entirely optical) nearly doubled YoY, and its full-year IT datacom share will rise from about one-third in 2025 to nearly half. And while CommScope was long classed as a scale-out/scale-across optics player, management said explicitly this quarter that, thanks to Amphenol's relationships "up and down" the AI ecosystem, CommScope has been pulled into customers' scale-up architecture discussions. For why scale-up is the key battleground of this cycle, see What Is XPO? The Loudest New Scale-Up Standard at OFC 2026, and the roadmap breakdown in CPO's three-stage evolution: why scale-out moves first but scale-up is the endgame.
Supply-side concerns (fiber shortages) were addressed too: CommScope has managed and expanded its supply chain, and fiber has not become a bottleneck — reflected in strong IT datacom growth and a positive full-year outlook.
5. Management outlook and supply-chain signals
Q3 FY2026 guidance: revenue $9.3B–$9.4B (+50–52% YoY), adjusted diluted EPS $1.40–$1.42 (+51–53% YoY). Management explicitly stated the guide excludes any further tariff refunds (it expects future tariff impact to be immaterial). This is a "clean" guide — growth comes entirely from the core business, not padded by one-time gains.
Supply-chain and customer threads worth tracking:
Analysts framed the AI interconnect "run rate" at roughly $10.5B–$11B, and Amphenol stressed it is one of the scaled leaders in all three of copper, optics and power. AI is no longer "a growth market" for Amphenol — it is the center of gravity of its revenue.
No central purchasing; 150 business units each fighting their own battle — that is how it handles bottlenecks. Management has doubled the company's size in two years (about one-third from M&A, two-thirds organic) yet claims to have seen no meaningful bottleneck. This "decentralized entrepreneurial culture" is the underlying reason it can absorb both the AI surge and acquisition integration at once.
Mobile hinges and the new-model cycle: mobile devices are expected to grow about 20% sequentially in Q3 on a wave of new launches, with mechanical parts for foldables an implied beneficiary.
Capital allocation: 1.5 million shares repurchased in the quarter (average $141), which together with dividends returned about $515M to shareholders; net debt $13.4B, liquidity $8.4B — a solid balance sheet.
6. Conclusion
Amphenol made one thing very clear this quarter: in the AI interconnect war, the safest position isn't betting on the right medium — it's being the full-stack supplier everyone has to buy from, whoever wins. High-speed copper, optics and power interconnect advancing together, plus CommScope turning from dilution into a money printer, give it both growth and margin — a combination most single-path players can't offer.
Three metrics to watch next quarter:
Can book-to-bill hold above 1 — 1.23 is the most honest leading indicator of this AI demand cycle; a drop below 1 would be the first sign of a momentum turn.
CommScope's IT datacom mix and margin — whether the full year moves toward "nearly half" and operating margin holds above 20% sets the ceiling on this deal.
Whether the organic decline in communications networks spreads — it is currently the only headwind among seven markets; fine if it's just carrier destocking, a warning sign if it spreads to other markets.
In one line: this isn't a connector company catching an AI tailwind; it's a company that has rewritten itself as "AI interconnect's toll collector" — and this quarter, the tolls are still rising.

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