Amphenol (APH)

Investment Review After Q1 FY2026 Earnings (stock price as of 2026.04.29)

TL;DR

Amphenol designs and manufactures interconnect, cable, sensor, and antenna systems for IT datacom (AI), defense, industrial, automotive, mobile, and commercial aerospace customers. Q1 FY2026 was a record quarter: revenue $7.6B (+58% USD, +33% organic), adjusted OM 27.3% (+380bps YoY), adjusted EPS $1.06 (+68%), record orders $9.4B with a 1.24x book-to-bill, and IT datacom now over 40% of sales as AI demand accelerates. Stock is $148 at 40x P/E(ttm) on TTM OP of $6.9B — main risk is parabolic 5-year stock (+349%) at stretched valuation as Q2 guide implies revenue growth decelerating to +43-45% (vs +58% Q1).

Summary

Finding	Assessment
5-Year Stock Return	+349% ($33 → $148); TTM OP +283% ($1.8B → $6.9B); P/E re-rated from ~30x to 40x on AI infrastructure positioning
Business Model	Amphenol Corporation — #2 global interconnect company, designs/makes electrical, electronic and fiber optic connectors, antennas, sensors, and specialty cable across 130+ autonomous BUs in 40+ countries
Competitive Moat	WIDE — diversified across markets/customers/~125K SKUs, decentralized M&A engine (130+ deals), and direct AI infrastructure beneficiary with broadest copper/power/fiber portfolio post-CommScope CCS
Past 5-YR Drivers	AI data center interconnect (IT datacom 41% of Q1 sales, +81% organic), CommScope CCS acquisition ($10.5B, $4.1B revenue), defense super-cycle, and broad industrial re-acceleration
Recent Stock Move	Stock currently $148, vs. $66 (Q1 2025). More than doubled on AI data center acceleration, record $9.4B Q1 orders (1.24x BTB), and CCS acquisition close
Revenue Trend	DECELERATING Rev YoY: 58% (Q1 2026) → 45% (Q2 2026E).
Margin Trend	FLAT OM%: 26% (Q1 2026) → 26% (Q2 2026E).
TTM OP Trajectory	DECELERATING TTM OP QoQ: 13% (Q1 2026) → 9% (Q2 2026E). TTM OP $6.9B.
Key Opportunities	AI infrastructure runway with broadest copper/power/fiber portfolio post-CCS; CCS margin convergence to corporate ~27% could unlock $200-400M incremental OP; defense structural upcycle and building connectivity cross-sell
Key Risks	AI cyclicality — IT datacom at 41% of sales; Q2 revenue growth decelerating to +43-45% from +58% Q1 is the first sign growth is normalizing. Tariff exposure on global footprint; 40x P/E with stock +349% over 5 years leaves little margin for error
Catalysts	Q2 FY2026 earnings (late July 2026): CCS margin convergence: order BTB sustainability above 1.0x: AI architecture transitions (CPO, optical, higher-voltage rack power)
P/E(ttm) Valuation	40x is rich vs. 5-year median, justified by record orders, CCS accretion, and AI positioning. Upside to 45x+ if AI demand sustains and CCS margins convert; downside to 25-30x if Q2/Q3 BTB slips below 1.0x or AI capex pauses

Q1 FY2026 Key Data

Record revenue $7.6B (+58% USD, +33% organic). CIS $4.5B (+80%, +47% org, OM 30.6%), HSI $1.7B (+34%, +23% org, OM 28.0%), ISS $1.4B (+23%, +17% org, OM 20.2%). CommScope CCS closed Jan 2026.
Adj OM 27.3% (+380bps YoY, -20bps QoQ); adj EPS $1.06 (+68%). GAAP EPS $0.72 includes $249M acquisition-related costs (CommScope). OCF $1.1B (120% of NI), FCF $831M, net leverage 1.6x.
Record orders $9.4B (+78% YoY, BTB 1.24x); every end market positive BTB. Q2 guide: revenue $8.1-8.2B (+43-45%), adj EPS $1.14-1.16 (+41-43%); IT datacom drove 81% organic growth in quarter.

Key Takeaways from Earnings Call

IT datacom now 41% of sales, +99% USD / +81% organic. AI build-outs across hyperscalers, OEMs, chipmakers; sequential +27% (vs guide low-double-digit). Q2 up low teens; CommScope adds copper/power/fiber breadth for next-gen AI inc. CPO.
Defense +44% USD / +25% organic, broad-based. Mgmt sees structural step-up in global defense procurement (missile defense, smart munitions); Q2 up high-single-digit. Industrial +52% USD / +16% organic broad re-accel; commercial air +22% USD.
Adj tax rate raised to 27% for 2026 (vs 24.5%). $130M China + $160M prior-period tax accrual in Q1 (excluded from adj EPS); 1.3M shares repurchased ~$140 ($178M); $307M dividends; $485M total capital return; $7.6B liquidity.

Key Segments and Revenue Mix (Q1 FY2026)

Amphenol estimates the worldwide interconnect/cable/antenna/sensor market at approximately $500 billion. With ~$30B+ pro-forma run-rate revenue (post-CCS), Amphenol holds roughly 6% market share with significant runway for continued growth.

Segment (% of sales)	Q1 FY2026 Rev	Q1 YoY Growth (Organic)	Q1 OM%	Key Markets
Communication Solutions (~59%)	$4.5B	+80% USD (+47% organic)	30.6%	IT Datacom (AI), Comms Networks, Auto, Mobile
Harsh Environment Solutions (~22%)	$1.7B	+34% USD (+23% organic)	28.0%	Defense, Commercial Aerospace, Industrial
Interconnect & Sensor Systems (~19%)	$1.4B	+23% USD (+17% organic)	20.2%	Auto, Industrial Sensors, IT Datacom (AI)

Business Model

SUPPLIERS

Copper & precious metals suppliers
Specialty plastics & resins
Fiber optic component makers
Electronic component distributors

Raw Materials →

AMPHENOL

Connectors & interconnect systems
High-speed data center cables (800G/1.6T)
Fiber optic solutions (CommScope CCS)
Sensors & antennas for harsh environments

Interconnect / Sensor → $ Revenue

CUSTOMERS

Hyperscalers (AWS, Azure, Google Cloud)
OEMs (Apple, Samsung, automotive Tier 1s)
Defense primes (Lockheed, Raytheon, BAE)
Telcos & network equipment makers

Moat Assessment: WIDE

Diversification across markets, customers, and ~125K SKUs: Operations across 100+ business units in 60+ countries, no single customer above 10% of revenue, and exposure across IT datacom, defense, industrial, auto, comms networks, mobile, and commercial air. This breadth lets Amphenol absorb cycles in any single end market and creates stickiness smaller competitors cannot match.
Decentralized M&A engine: 130+ acquisitions over 20 years funded from cash flow without equity dilution; Amphenol acquires founder-led businesses, keeps GMs entrepreneurial, and applies its margin playbook. The $10.5B CommScope CCS close (Jan 2026) is the largest in company history and is already growing faster than deal-time expectations.
AI infrastructure direct beneficiary with broadest interconnect portfolio: Post-CCS, Amphenol now offers the broadest range of high-speed copper, power, and fiber-optic (passive and active) interconnect for AI build-outs; mgmt explicitly stated they sit "at the table" with chipmakers, OEMs, and hyperscalers across current, next, and next-after-next architectures including CPO.

Stock vs. Earnings — 5-Year Performance

Stock currently $148, up 349% from $33 (5 years ago). Shares more than quadrupled, driven by data center interconnect growth and disciplined M&A. The stock re-rated from ~30x to 40x P/E as the market recognized Amphenol’s central role in AI infrastructure.
TTM Operating Profit +283% ($1.8B → $6.9B): OP growth tracked stock appreciation, reflecting genuine earnings power expansion. IT Datacom revenue grew dramatically while operating margins expanded from ~20% to 27.3% in Q1 FY2026.
Valuation at 40x P/E: Above the 5-year median, supported by 58% revenue growth Q1 (33% organic), record $9.4B orders (1.24x BTB), 1.6x net leverage, and the closed $10.5B CommScope CCS acquisition adding $4.1B in expected 2026 revenue.

Past 5-Year Key Drivers

AI data center interconnect explosion: IT Datacom market reached just over 40% of total sales in Q1 FY2026 from a much smaller base 5 years ago, with +81% organic growth in the quarter alone. Mgmt cites AI capex driving demand across copper, power, and fiber interconnect; sales doubled in two years (Q1 2024 to Q1 2026).
Margin expansion through mix shift and scale: Adjusted operating margin expanded from ~20% (FY2020) to 27.3% in Q1 FY2026 (+380bps YoY). Communication Solutions OM at 30.6% in Q1 drives the mix shift; mgmt attributes margin gains to operating leverage on significant volume growth and disciplined cost control.
Acquisition-fueled growth engine: 130+ acquisitions over 20 years, culminating in the $10.5B CommScope CCS deal closed January 2026, adding ~$4.1B revenue at close (vs $3.5-3.6B at announcement) plus building connectivity exposure. CCS team grew at Amphenol-organic-equivalent pace in Q1 — faster than the mid-teens deal-time expectation.

Quarterly Key Metrics

USD	Q1'24	Q2'24	Q3'24	Q4'24	Q1'25	Q2'25	Q3'25	Q4'25	Q1'26	Q2'26E
Quarter End	Mar 2024	Jun 2024	Sep 2024	Dec 2024	Mar 2025	Jun 2025	Sep 2025	Dec 2025	Mar 2026	Jun 2026E
Stock	$57	$68	$65	$69	$66	$99	$124	$135	$126	$148
Stock QoQ	+18%	+18%	-3%	+7%	-6%	+51%	+25%	+9%	-7%	+17%
Rev YoY	+9%	+18%	+26%	+30%	+48%	+57%	+53%	+49%	+58%	+45%
OM%	21%	23%	23%	23%	24%	26%	27%	28%	26%	26%
R40 (RevYoY+OM%)	31%	41%	49%	52%	72%	82%	81%	77%	84%	71%
TTM OP ($M)	2,711	2,922	3,175	3,430	3,919	4,523	5,297	6,136	6,911	7,561
TTM OP QoQ	+3%	+8%	+9%	+8%	+14%	+15%	+17%	+16%	+13%	+9%
FCF/OP	82%	79%	71%	63%	57%	62%	67%	71%	67%	67%
Debt/EBITDA	1.3x	1.6x	1.4x	1.7x	1.5x	1.5x	1.3x	2.2x	2.3x	2.3x
P/E(ttm)	35x	40x	36x	36x	31x	39x	42x	41x	36x	40x

Recent Stock Performance & Drivers

Stock currently $148, vs. $66 (Q1 2025). Stock more than doubled in 12 months on accelerating AI data center demand. Q1 FY2026 record orders of $9.4B (+78% YoY, 1.24x BTB) confirmed broad-based demand strength — every end market posted positive book-to-bill.
CommScope CCS acquisition closed January 2026: $10.5B deal funded with $7.4B cash + $3.1B term loans added ~$4.1B in expected 2026 revenue. CCS grew at organic-Amphenol pace in Q1, materially ahead of the mid-teens expectation set at deal announcement; opens building connectivity and rack-to-rack data center adjacencies.
Margin and cash conversion stayed strong despite acquisition dilution: Adj OM 27.3% in Q1 FY2026 (+380bps YoY) absorbed CCS margin dilution and $249M acquisition-related costs. OCF $1.1B (120% of NI), FCF $831M (89% of NI), net leverage 1.6x — well below covenant thresholds.

Opportunities

AI infrastructure multi-year runway: IT datacom 41% of sales, +81% organic in Q1; hyperscalers "opening order apertures" (commit capacity). Q4 2025 BTB 1.31x, Q1 2026 1.24x — consistent with AI capex sustained through 2027.
CommScope CCS integration upside: CCS Q1 organic growth well above mid-teens deal-time expectation. Margin playbook to CCS’s lower margins could unlock $200-400M incremental OP over 2-3 yrs; building connectivity is a new $1B+ TAM.
Defense super-cycle & broad industrial re-acceleration: Defense +25% organic, mgmt cites structural multi-year demand (missile defense, smart munitions, NATO/Israel re-supply); industrial +16% organic broad-based across most subsegments.

Challenges

AI cyclicality and concentration risk: IT datacom 41% of sales creates concentration in hyperscaler capex. Q2 guide implies rev decel to +43-45% (vs +58% Q1) — first sign of normalization; AI pause could compress P/E to 25-30x.
Tax headwinds and prior-period reassessment: Adj tax rate raised to 27% for 2026 (vs 24.5%); $130M China + $160M prior-period accrual in Q1. With $18.7B total debt post-CCS and $200M quarterly net interest, EPS more sensitive to tax/rate moves.
Tariff and geopolitical exposure on global footprint: APH manufactures in ~40 countries; mgmt offsetting tariff/cost via GM-level pricing, productivity, vendor work. Stock at 40x P/E and +349% over 5 yrs leaves little margin for error.

Next 12 Months

Q2 FY2026 earnings (late July 2026): Mgmt guided revenue $8.1-8.2B (+43-45% YoY) and adj EPS $1.14-1.16 (+41-43%). A clean beat with AI/IT datacom continued strength and CCS margin progression would validate the post-acquisition trajectory.
CCS integration milestones & margin convergence: Watch for CCS adj OM to rise from dilutive level toward corp ~27% over 2-3 yrs, and for $0.15+ EPS accretion guide to be raised. Building connectivity cross-sell is long-term option.
Order trend sustainability post-1.24x BTB: Q4 FY2025 BTB 1.31x, Q1 FY2026 1.24x. Sustained BTB ≥1.0x in Q2-Q3 with strong AI orders extends the cycle. A drop below 1.0x or AI order softening would mark the first signal of an AI capex pause.

Next 12-24 Months

Next-gen AI transitions (CPO, optical, higher-V). APH spans passive/active copper + optics, working w/ hyperscalers on CPO and higher-V rack power. 2027-28 transitions expand content/rack — or dilute share if copper lead fades.
M&A capacity rebuilding and defense upcycle. Net leverage 1.6x + ~$5-6B FCF rebuilds M&A firepower by mid-2027. Trexon + organic defense build + higher global defense budgets add a non-AI growth engine.

Core Metrics Scorecard

	Q3'21	Q4'21	Q1'22	Q2'22	Q3'22	Q4'22	Q1'23	Q2'23	Q3'23	Q4'23	Q1'24	Q2'24	Q3'24	Q4'24	Q1'25	Q2'25	Q3'25	Q4'25	Q1'26	Q2'26E
Quarter End	Sep21	Dec21	Mar22	Jun22	Sep22	Dec22	Mar23	Jun23	Sep23	Dec23	Mar24	Jun24	Sep24	Dec24	Mar25	Jun25	Sep25	Dec25	Mar26	Jun26E
R40 > 40%	✅	✅	✅									✅	✅	✅	✅	✅	✅	✅	✅	✅
R40 accelerate		✅							✅	✅	✅	✅	✅	✅	✅	✅			✅
TTM OP QoQ > 10%															✅	✅	✅	✅	✅
TTM OP QoQ accelerate		✅	✅		✅					✅	✅	✅	✅		✅	✅	✅
TTM FCF/OP > 60%	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅
Debt/EBITDA < 3.5	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅
Total Passes	3	5	4	2	3	2	2	2	3	4	4	5	5	4	6	6	5	4	5	3
Stock QoQ	+7%	+19%	-14%	-15%	+4%	+14%	+7%	+4%	-3%	+17%	+18%	+18%	-3%	+7%	-6%	+51%	+25%	+9%	-7%	+17%
P/E(ttm)	30x	33x	27x	22x	22x	25x	26x	28x	27x	31x	35x	40x	36x	36x	31x	39x	42x	41x	36x	40x

Scorecard peak at 6/6 passes in Q1-Q2 2025: All growth and defensive metrics passed simultaneously — R40 exceeded 80%, TTM OP growth surged above 15% QoQ, and FCF/OP and leverage stayed within bounds. This coincided with the stock’s breakout from $66 to $99.
Q1 FY2026 at 5/6 passes — growth re-accelerated: R40 jumped from 77% to 84% (best in 5 years) on +58% revenue and 26% OM, TTM OP QoQ at 13% (>10% threshold), defensive metrics still green. The only miss is "TTM OP QoQ accelerate" (slowed from 16% to 13%), which is mechanical at this scale.
Q2 2026E projected to drop to 3/6 on natural deceleration: R40 falling to 71% (still very high), TTM OP QoQ to 9% (<10% threshold), and growth no longer accelerating. Both defensive metrics (FCF/OP 67%, Debt/EBITDA 2.3x) remain comfortably green. Pattern matches a maturing growth phase, not a downturn.

Chart: R40 vs Stock Price (Since 2020)

Chart: Scorecard Total Passes vs Stock Price (Since 2020)

Source: SEC EDGAR annual and quarterly filings, company earnings conference calls and presentations.

Disclaimer: This report is for educational purposes only. NO investment advice.