APH

AMPHENOL CORP

Ticker: APHTechnologyElectronic EquipmentS&P 500
HQ WALLINGFORD, CTCIK 820313FY end 12-31Book / share $12.01Shares 1289M
Revenue (FY)
$23.09B+51.71%
TTM $29.01B
Op. margin
25.41%+4.67%
TTM 27.03%
Net income
$4.31B+76.33%
TTM $5.19B
Operating cash
$5.37B+90.95%
TTM $5.87B
Free cash flow
$4.38B+103.70%
TTM $4.71B
Return on equity
31.84%+7.08%
TTM 33.20%
Debt / equity
1.16+0.45%
TTM 1.21
Shares outstanding
1.3B+1.10%
TTM 1.3B

The business

Amphenol Corporation (NYSE: AMP) is one of the world's largest designers, manufacturers and marketers of electrical, electronic and fiber optic connectors and interconnect systems, antennas, sensors and sensor-based products, and coaxial, high-speed, fiber optic and specialty cable. The company operates through three reportable business segments: Communications Solutions, which represents 52% of net sales and includes high-speed interconnect products, fiber optic systems, radio frequency interconnects, cable assemblies and antennas; Harsh Environment Solutions, representing 26% of net sales and providing ruggedized interconnect products, specialty cable and printed circuits; and Interconnect and Sensor Systems, representing 22% of net sales and offering sensors, sensor-based systems and value-add interconnect solutions.

The company serves a diversified customer base across multiple end markets including information technology and data communications (36% of sales), industrial (19%), automotive (15%), communications networks (10%), defense (9%), commercial aerospace (5%), and mobile devices (6%). Amphenol's products enable applications ranging from artificial intelligence and cloud computing infrastructure to electric vehicles, 5G networks, aerospace systems and industrial automation.

As of December 31, 2025, Amphenol employed approximately 170,000 people worldwide, with about 90% of its workforce located outside the United States. The company operates manufacturing, engineering, sales and service facilities in approximately 40 countries, with approximately 79% of long-lived assets located outside the United States. Non-U.S. markets represented approximately 65% of net sales in 2025, with China constituting approximately 16% of sales.

The company's business model emphasizes broad market diversification, high-technology performance-enhancing solutions, global presence and cost control. Amphenol maintains a distinctive entrepreneurial management culture with more than 140 general managers operating in a flat organizational structure. The company pursues strategic acquisitions to expand product lines, technological capabilities and geographic presence. The company's website is www.amphenol.com.

Sector
Technology
Industry
Electronic Equipment
HQ
WALLINGFORD, CT
FY end
12-31
CIK
820313
SIC
3678
Financial performance · annual
20132025
$-2.90B$5.80B$14.51B$23.21B$31.91B2013201420152016201720182019202020212022202320242025TTMTTMTTM

Ownership

Who holds AMPHENOL CORP — across funds, superinvestors and bonds · N-PORT 2026Q2 · 13F 2026-06-30

1.2K
funds hold it
1 of 35
superinvestors hold it
$80.51B
fund-held value
39.4%
of shares held by funds
20
bond issues held by funds

Top fund holders

Fund% of fundValue
VANGUARD TOTAL STOCK MARKET INDEX FUND
VTI · VANGUARD INDEX FUNDS
0.30%$6.89B
VANGUARD 500 INDEX FUND
VOO · VANGUARD INDEX FUNDS
0.34%$5.62B
Fidelity Contrafund
FCNTX
1.93%$3.47B
iShares Core S&P 500 ETF
IVV · iShares Trust
0.34%$2.98B
Growth Fund of America
AGTHX
0.74%$2.67B

Superinvestors in AMPHENOL CORP

Wallace WeitzUNCHANGED
Weitz Investment Management
0.1%

Share of each manager's reported 13F portfolio.

Bonds held by funds

Funds report holding 20 issues of AMPHENOL CORP's debt, $3.06B at fund-held market value — what funds hold, not the company's debt outstanding. Weighted-average coupon 4.42%, maturing 20272055.

IssueCouponMaturesFundsFund-held
APH 4.625 02/15/364.625%2036-02-1587$625.47M
Amphenol Corp4.400%2033-02-15106$438.35M
Amphenol Corp.5.300%2055-11-15107$307.92M
Amphenol Corp3.800%2027-11-1566$255.06M
Amphenol Corp.4.125%2030-11-1585$248.27M
Amphenol Corp.3.900%2028-11-1586$200.57M
AMPHENOL CORPORATION NEW FRN SOFR+53 11/15/20274.190%Variable2027-11-1531$186.42M
AMPHENOL CORP5.000%2035-01-1552$152.70M
APH 4.375 06/12/284.380%2028-06-1253$148.49M
APH 5.25 04/05/345.250%2034-04-0549$115.84M

The 10 largest by fund-held value, of 20.

Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.

Fund ownership is a subset of institutional 13F ownership — the two describe overlapping populations and must not be added together.

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15 years of AMPHENOL CORP's financials

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