Amphenol Corporation (APH) | The Buildout — AI Infrastructure
The Verdict
Amphenol designs and manufactures electrical, fiber optic, and specialty cable, connectors, and interconnect systems. In the AI buildout, its high-speed copper, optical, and power interconnect products carry data and power through datacenters, while the CommScope acquisition adds optical interconnect.
| Market Cap | — |
| Revenue (TTM) | $29.0B |
| Revenue Growth | +54.2% |
| EBITDA Margin (TTM) | 32.2% |
| Net Debt | $13.4B |
| Earnings Beats | 7 of 7 |
| P/E (TTM) | — |
| EV/EBITDA (TTM) | — |
What We Like
- IT datacom grew 89% USD and 63% organic year over year in Q2, with Q3 guided up mid-teens sequentially.
- Q2 orders reached $10.7B, up 94% year over year, with book-to-bill of 1.23:1 and every end market positive.
- Adjusted operating margin hit a record 29.8%, up 250 basis points sequentially and nearly 29% excluding an $80M tariff recovery.
- CommScope FY2026 targets were raised to $4.6B of sales and $0.30 of accretion from $4.1B and $0.15.
- Defense grew 37% USD and 24% organic, while industrial grew 18% organic, broadening demand beyond AI.
What We’re Watching
- IT datacom concentration rose to 43% of Q2 sales from 41% in Q1 and 38% in Q4 FY2025.
- Communications networks organic sales fell 6% in Q2 and are guided down mid-teens sequentially in Q3.
- Q2's $80M tariff recovery is one-time; Q3 guidance excludes additional net tariff recoveries.
- Customer-side memory, silicon, and optics shortages could cap order-to-revenue conversion; HPE expects little supply change into 2027.
The thesis is strengthening: records in sales, orders, and adjusted operating margin, a doubled CommScope accretion target, and broad-based demand support continued momentum. The key open question is whether customer component shortages allow the 1.23:1 order book to convert into revenue at the pace the order growth implies.
Earnings Beat
Amphenol reported Q2 FY2026 sales of $8.8B, up 55% USD and 30% organic, with gross margin of 40.5%. Adjusted operating margin reached a record 29.8%, and orders hit $10.7B with a book-to-bill of 1.23:1.
| Metric | Q2 FY2026 | Q1 FY2026 | Q2 FY2025 | YoY |
|---|---|---|---|---|
| Revenue | $8.8B | $7.6B | $5.7B | +55.0% |
| Gross margin | 40.5% | 36.7% | 36.3% | +420bps |
| EBITDA | $3.1B | $2.3B | $1.6B | +87.2% |
| EPS | $1.37 | $0.73 | $0.86 | +59.6% |
| Book-to-bill | 1.23:1 | 1.24:1 | n/a | — |
The one consistent thing we hear from our customers is they need more of everything. More high-speed copper. More fiber optic solutions, and more power solutions.— R. Adam Norwitt, CEO, July 29, 2026
Management tone: Management's tone was confident and execution-focused, shifting from acknowledging concentration in Q1 to describing broad-based demand in Q2. Defense language hardened from "potentially a long-term structural shift" to "there is no doubt" that countries are increasing investment, while executives continued to decline granular AI revenue and product-level disclosure.
Management Guidance
Management guided Q3 FY2026 sales of $9.3B-$9.4B and adjusted diluted EPS of $1.40-$1.42, representing sales growth of +50-52% and EPS growth of +51-53% year over year. Q3 guidance excludes additional net tariff recoveries. For FY2026, management held the adjusted tax rate at 27%, expects quarterly net interest expense of approximately $200 million for the remainder, and raised CommScope full-year targets to $4.6B of sales and $0.30 of accretion. CapEx is expected at the high end of the 3-4% of sales range, with second-half possibly modestly higher.
Trajectory
Revenue has shifted into high growth, with sequential gains of 18.3% in Q1 FY2026 and 14.9% in Q2 FY2026 after +3.9% in Q4 FY2025, reaching $8.8B in Q2. Gross margin expanded 240 basis points and EBITDA margin expanded 390 basis points, on operating leverage and CommScope progress. Customer-side component shortages remain the main conversion risk.
The Model
The model projects FY+1 revenue of 33,480M and EBITDA of 10,747M (32.1% margin), rising to 40,000M revenue and 13,200M EBITDA (33.0% margin) in FY+2. The near-term projection is anchored by the record order book and CommScope integration; FY+2 assumes continued AI datacenter demand and operating leverage.
| Metric | FY2025 | Next FY (E) | Following FY (E) |
|---|---|---|---|
| Revenue | $23.1B | $33.5B | $40.0B |
| YoY Growth | — | +45.0% | +19.5% |
| EBITDA | $6.9B | $10.7B | $13.2B |
| EBITDA Margin | 29.9% | 32.1% | 33.0% |
Projections are the median of 5 independent model runs. The model’s revenue sits 4.7% above analyst consensus.
Management guided Q3 FY2026 sales of $9.3B-$9.4B and adjusted diluted EPS of $1.40-$1.42, representing sales growth of +50-52% and EPS growth of +51-53% year over year. Q3 guidance excludes additional net tariff recoveries. For FY2026, management held the adjusted tax rate at 27%, expects quarterly net interest expense of approximately $200 million for the remainder, and raised CommScope full-year targets to $4.6B of sales and $0.30 of accretion. CapEx is expected at the high end of the 3-4% of sales range, with second-half possibly modestly higher.
What Could Go Right — and Wrong
- CommScope margin meaningfully exceeds the current over-20%-including-amortization level toward the company average.
- Scale-up optics or co-packaged optics engagements move from design discussions to volume.
- Customer component constraints ease, letting the 1.23 book-to-bill convert to revenue faster.
- Defense demand converts into confirmed multi-year program activity.
- Communications networks declines stabilize, removing the lone internal soft spot.
- AI datacenter capex pauses, directly reducing the IT datacom line that is 43% of sales.
- Customer silicon, memory, or optics shortages prevent orders from converting to revenue.
- Competitive pressure from TE Connectivity, Corning, and others could erode share in copper, optical, and power interconnect.
- CommScope integration stumbles, reversing the FY2026 accretion upgrade.
- A further China tax determination pushes the adjusted tax rate above 27%.
Looking Ahead
Over the next 12 months, Amphenol's trajectory runs through continued IT datacom growth, CommScope's first full year of integration, and early engagement on co-packaged optics and scale-up optics. Q3 guidance steps up again while communications networks remains the lone guided end-market decline.
- September 2, 2026Two-for-one stock split distribution — Approved August 5, 2026; record date August 17, 2026.
- Q3 FY2026 earnings — Tests mid-teens IT datacom sequential guide and book-to-bill durability.
- FY2026CommScope full-year targets — Tests $4.6B sales and $0.30 accretion commitments.
- Next 12 monthsChina tax resolution — Tax payment notices totaled $230.0M; Q1 FY2026 included a $130M accrual.
Financials
Annual Summary
| Metric | FY2024 | FY2025 | TTM | YoY |
|---|---|---|---|---|
| Revenue | $15.2B | $23.1B | $29.0B | +51.7% |
| Gross Margin | 33.7% | 36.7% | 38.5% | +298bps |
| EBITDA | $3.9B | $6.9B | $33.1B | +78.8% |
| EBITDA Margin | 25.3% | 29.9% | 32.2% | +452bps |
| Net Income | $2.4B | $4.3B | $5.2B | +76.2% |
| Free Cash Flow | $2.1B | $4.4B | $18.5B | — |
| Net Cash | — | — | — | — |
Key Ratios (Trailing)
- P/E TTM—
- EV/EBITDA TTM—
- EV/Revenue TTM—
- Price/FCF TTM—
- Gross Margin (TTM)38.5%
- EBITDA Margin (TTM)32.2%
- Net Margin (TTM)17.8%
- ROIC21.6%
- FCF Conversion50.5%
- SBC / Revenue0.5%
The Company
Amphenol is one of the world's largest designers, manufacturers, and marketers of electrical, electronic, and fiber optic connectors and interconnect systems, antennas, sensors, sensor-based products, and specialty cable. In the AI buildout, its IT datacom business supplies high-speed copper, fiber optic, and power interconnect that connects chips, racks, and datacenter power systems.
The company runs about 150 decentralized operations across roughly 40 countries, each led by a general manager who manages supply chain, sales, engineering, operations, and quality. U.S. facilities total about 6 million square feet and non-U.S. facilities about 29 million square feet. Management says sales run rate doubled from Q1 2024 to Q1 2026, about two-thirds organically.
Business Segments
Competitive Landscape
Amphenol says it now has the broadest range of high-speed copper, power, and fiber optic interconnect products. The competitive space is contested: TE Connectivity, Corning, Belden, and others are investing in the same copper, optical, and power data-center market, and no sole-source advantage is claimed beyond management's breadth statement.
- TE ConnectivityRaised FY2026 AI revenue outlook to approximately $2.4B; reported AI-related orders building backlog into 2027.
- CorningSigned multiple large hyperscale long-term agreements; sees scale-up/CPO probability increasing.
- BeldenNamed in FY2025 10-K competitor list; no further detail in supplied sources.
- MolexNamed in FY2025 10-K competitor list; not discussed.
- Named in FY2025 10-K competitor list; no further detail in supplied sources.
Supply Chain
Amphenol buys from component, material, and fiber markets and sells into AI datacenter, defense, and industrial equipment. The 10-K discloses limited single-source supply risk, but no named supplier contracts are confirmed in the record.
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