Amphenol (APH) Q3 2026 earnings review
Amphenol's underlying sales accelerate, while its acquisition debt keeps rising
Amphenol, a global maker of electrical and fibre-optic connectors, accelerated its underlying sales growth while booking record customer orders. Total revenue jumped 65% from a year ago to $10.2 billion, and sales from businesses owned a year ago rose 37%, reversing a three-quarter slowdown. Chairman and chief executive R. Adam Norwitt said revenue and profit per share both finished "exceeding the high end of our guidance", while operating margin excluding one-offs held at 29.7% even as tariff refunds faded.
| Sales from businesses owned a year ago | +37% up from +30% last quarter (total sales $10.2B, +65%) |
|---|---|
| Quarterly orders | $12.2B 1.19 times shipments (up 14% from last quarter) |
| Operating margin, excluding one-offs | 29.7% +2.2 percentage points from a year ago |
| Full-year CommScope sales outlook | Raised $500M now $5.1B and $0.18 per share accretion |
⚖️ Verdict: 🟢 Bullish
The story got better because underlying demand sped up against the toughest comparison of the year and customer orders climbed to $12.2 billion. Raising the CommScope outlook a second time to $5.1 billion also proves the fibre-optic acquisition is outperforming early targets. One caution: the company signed four more acquisitions for $1.6 billion while interest expense more than doubled to $212 million and capital spending rose to 4.5% of sales.
The question now is whether the $12.2 billion order torrent reflects immediate data-centre demand or customers booking further ahead to secure factory space. If it is immediate demand, quarterly sales will keep climbing past the $10.4 billion fourth-quarter plan; if it is extended booking windows, the ratio of orders to shipments will drop below one. Next quarter's order conversion and book-to-bill ratio will tell.
🐂 Bull Case
Underlying Sales Growth Turned Back Up
Amphenol makes electrical and fibre-optic connectors used in data centres, aircraft, factories and cars. Sales from businesses it owned a year ago had slowed for three straight quarters against tougher comparisons from the 2025 artificial intelligence build-out. Chief executive R. Adam Norwitt attributed the 65% total revenue jump to "continued exceptional organic growth in the IT datacom market, as well as contributions from the Company’s acquisition program".
- Total underlying sales: up 37% from a year ago, accelerating from 30% in the second quarter
- Communications Solutions (data centre and network gear): up 51% on an underlying basis, versus 42% last quarter
- Harsh Environment Solutions (industrial and defence gear): up 29% on an underlying basis, versus 22% last quarter
- Interconnect and Sensor Systems (automotive and sensors): up 11% on an underlying basis, versus 13% last quarter
This reversal matters because the third quarter of 2025 was the steepest part of last year's ramp, when underlying sales rose 41%. Accelerating across both data communications and industrial markets against that high bar shows demand is broadening beyond a single customer wave. What to watch: end-market revenue shares on the conference call. A rising data-centre share alongside 29% harsh-environment growth would confirm industrial demand is keeping pace.
Orders Hit $12.2 Billion and Outran Shipments
Customers placed a record $12.2 billion of orders during the quarter, "resulting in a book-to-bill of 1.19:1", the company said. Book-to-bill compares orders received to products shipped, so a reading of 1.19 means Amphenol took in $1.19 of new orders for every $1.00 of sales. Critics have argued that record bookings only reflect customers ordering further ahead to help the connector maker plan factory capacity, which would mean shipments soon stall as customers digest those early commitments.
The quarter's numbers argue against a digestion stall. Orders rose 14% from last quarter's $10.7 billion record and doubled from a year ago by our math, adding nearly $2.0 billion to the unfilled order book. Furthermore, third-quarter sales equalled 95.6% of second-quarter orders by our math, up from 93.2% in the prior quarter, proving that orders are still turning into shipments inside a single quarter. What to watch: fourth-quarter book-to-bill. A reading below 1.00 would signal that shipments are finally catching up to extended customer commitments.
CommScope Target Raised a Second Time
Amphenol bought CommScope's Connectivity and Cable Solutions business in January 2026 for $10.5 billion to add fibre-optic cables for data centres and communications networks. Because of the "continued better-than-expected performance of the CommScope business", the company raised its full-year sales target for the unit to $5.1 billion and its profit contribution to $0.18 per share, excluding one-offs. Three months ago, management forecast $4.6 billion in sales and $0.15 per share (adjusted for September's two-for-one stock split), up from an initial $4.1 billion and $0.075.
By our math, subtracting the $2.1 billion CommScope generated in the first half leaves $3.0 billion for the second half, or $1.5 billion a quarter, up 25% from its second-quarter pace. Meanwhile, operating margin in the Communications Solutions segment reached 33.1%, up 0.4 percentage points from a year ago despite absorbing the lower-margin acquisition. What to watch: fourth-quarter Communications Solutions operating margin. Further expansion above 33.1% would show fibre-optic demand is lifting the acquired unit toward Amphenol's group average.
Operating Margin Held Near 30% Without Tariff Help
Last quarter, an $80 million refund of International Emergency Economic Powers Act (IEEPA) tariffs boosted operating profit and raised the concern that profitability would step down once refunds ended. In the third quarter, tariff refunds dropped to $15 million, or less than $0.01 per share, the company said. Even so, operating margin excluding one-offs reached 29.7%, up 2.2 percentage points from 27.5% a year ago and within 0.1 percentage points of last quarter's 29.8%.
Stripping the tariff refunds out of both periods by our math shows that underlying operating margin actually rose by 0.66 percentage points from last quarter, moving from 28.87% to 29.53%. Compared with a year ago, the cost of making products fell 1.17 percentage points of revenue to 60.7%, while selling and overhead costs fell 1.03 percentage points to 9.6%. What to watch: fourth-quarter operating margin implied by the profit outlook. Holding above 29.5% with zero tariff refunds would settle the margin quality question.
🐻 Bear Case
Four More Deals Expand Debt and Integration Risk
Norwitt praised the company's "ongoing drive to leverage that competitive advantage and thereby create sustained financial strength", and announced deals for four more businesses: Empire Electronics (closed in September), AdvancedPCB, Dexgreen and Humanetics Sensors. Together they cost about $1.6 billion and bring $750 million in annual sales, which Amphenol will fund with cash and debt. That adds to a busy year where acquisitions supplied 28 percentage points of the quarter's 65% revenue growth.
- Interest expense: $212.3 million in the third quarter, up 163% from $80.7 million a year ago
- Total debt: $17.87 billion at September 30, leaving $12.57 billion of net debt by our math
- Goodwill and intangible assets: $23.04 billion, or 49% of total assets, up from $12.82 billion at year-end
- Tax rate and charges: 27.0% tax rate excluding one-offs, plus a $60 million foreign tax settlement charge ($389 million year to date)
This buying spree matters because Amphenol is layering $1.6 billion of new commitments onto a balance sheet still digesting the $10.5 billion CommScope deal, while higher interest and a 27% tax rate eat into net profit. What to watch: net debt and interest expense in the fourth quarter when AdvancedPCB and Humanetics close. Another rise in quarterly interest above $215 million would show debt service is becoming a permanent drag on earnings.
Capital Outflows Topped Free Cash Flow
Amphenol announced a 20% dividend increase to $0.15 per share and a new three-year, $4 billion share buyback plan starting in January 2027. Yet cash demands from factory expansion, acquisitions and shareholder payouts are running high. Capital spending on property and equipment jumped 78% from a year ago to $457.2 million, or 4.5% of revenue by our math, pushing past the 3% to 4% historical band as the company builds data-centre capacity.
At the same time, buying 3.0 million shares for $244.7 million did not reduce the share count: diluted shares rose 0.7% from a year ago to 2,582.9 million because employee stock option exercises added $97.1 million in new shares. Between $552.7 million in dividends and buybacks, $371.8 million for acquisitions and $937.9 million in debt repayments, cash and short-term investments fell by $117.7 million in the quarter to $5.30 billion. What to watch: diluted share count in the first quarter of 2027 under the new $4 billion plan. A rising share count would confirm buybacks only offset employee dilution.
Risks this quarter didn't answer
Three standing concerns about revenue concentration and accounting cannot be read from the earnings release alone and await the conference call or quarterly filing.
- Data-centre revenue concentration: IT datacom reached 43% of sales last quarter, and Communications Solutions hit 64.4% of total sales this quarter; the exact IT datacom share is given on the call.
- Copper versus fibre-optic split: management has not disclosed how artificial intelligence sales split between copper cables and optics; any figure on the call would test whether optics are replacing copper.
- CommScope purchase accounting: the $10.5 billion allocation of goodwill and intangible assets was preliminary at mid-year; the third-quarter 10-Q filing will show if adjustments altered amortization costs.
💲 Other KPIs
Free cash flow — operating cash flow minus factory equipment spending — rose 33.5% from a year ago, trailing the 63.3% rise in net profit. Working capital absorbed $415.9 million in cash during the quarter ($1.59 billion over nine months) to fund higher receivables and inventory, pulling the free cash flow margin down to 15.9% of sales from 19.6% a year ago.
Customer bills owed to Amphenol (accounts receivable) reached $7,782.0 million and inventories hit $5,264.5 million at quarter end. By our math, receivables grew 65.0% and inventories rose 53.7% from December 31, 2025, matching the 65.1% jump in quarterly revenue as the group brought CommScope and Empire Electronics onto its books and stocked parts for the $12.2 billion order book.
🔮 Guidance
New. The plan calls for about 60% revenue growth from a year ago (61.5% at the middle of the range by our math) and 1.7% growth from the third quarter, excluding unclosed acquisitions. Amphenol has beaten its quarterly revenue midpoint for six straight quarters by an average of 10.1%; if the pattern holds, fourth-quarter revenue would reach about $11.45 billion by our math.
New. The outlook points to 65% to 69% growth in profit per share from a year ago and 2.5% from the third quarter at the middle of the range, excluding $0.01 of acquisition transaction costs. Management has topped the high end of its quarterly earnings forecast in every quarter over the past year and a half.
New. Amphenol issued its first full-year 2026 revenue range alongside third-quarter results, pointing to 60.2% growth over 2025 at the middle of the range by our math. Because three quarters are already reported, the annual range simply adds the fourth-quarter outlook to the $26.61 billion generated in the first nine months.
New. The full-year profit outlook calls for about 70% growth over 2025 (69.5% at the middle of the range by our math, against a split-adjusted $1.67 in 2025). It excludes $0.15 per share in foreign and China tax charges, $0.06 in acquisition costs and $0.04 of inventory step-up costs, offset by $0.07 of stock-option tax benefits.
Raised. Management lifted its full-year CommScope revenue target by $500 million for a second straight quarter — moving from $4.1 billion to $4.6 billion to $5.1 billion — and raised split-adjusted earnings accretion from $0.075 to $0.15 to $0.18. By our math, the new revenue target leaves $3.0 billion for the second half of 2026, up from $2.1 billion in the first half.
❓ Key Questions
What share of sales came from IT datacom and AI?
IT datacom reached 43% of revenue last quarter, and the Communications Solutions division climbed to 64.4% of total sales in the third quarter. Knowing the exact IT datacom share and how it splits between copper and fibre optics is essential to gauge concentration risk.
How far out are customers booking in the $12.2B orders?
Orders topped shipments by nearly $2.0 billion in the quarter. Management previously noted that artificial intelligence customers extended their ordering windows to support factory expansion; investors need to know how much of the order book is scheduled for delivery beyond the next two quarters.
What was CommScope's standalone third-quarter revenue and operating margin?
Raising CommScope's full-year target to $5.1 billion implies $3.0 billion of sales across the second half of 2026 by our math. Disclosing third-quarter sales and operating margin will show how much of that step-up is already achieved versus required in the fourth quarter.
Are foreign tax audits settled after the new $60M charge?
Amphenol booked another $60.0 million charge for foreign tax settlements in the third quarter, bringing nine-month discrete tax charges to $389.0 million alongside a higher 27.0% adjusted tax rate. Clarifying whether audits in China and other jurisdictions are now closed matters for 2027 cash taxes.