Last refreshed: September 4, 2026 (US ET)
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APH

Growth

AMPHENOL CORP A

Information Technology·Electronic ComponentsYield: Mid (1-3%)

Amphenol Corporation, together with its subsidiaries, designs, manufactures, and markets electrical, electronic, and fiber optic connectors in the United States, China, and internationally. It operates through three segments: Communications Solutions, Harsh Environment Solutions, and Interconnect and Sensor Systems. The company offers connectors and connector systems, including high speed, radio frequency, power, fiber optic and other interconnect products; busbars and power distribution systems; power interconnect products; and other products.

Close · 3M

-45.18%

APH · 3M

-45.18%

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Held by 3 AI ETFs

AMOM2.540%

as of Sep 2

LQAI0.130%

as of Sep 2

PQUS0.120%

as of Sep 1

Signal performance

Each tracked ETF's moves on this stock, grouped by fund. Returns are measured from the signal date to the latest close — hypothetical, no commissions or slippage.

Buy signals12
Win rate0% (0/12)
Avg buy return-42.76%
AMOMnow 2.540% of fund12 signals

AMOM · New entry · 1d

weight 0 → 2.540% (new)·stock down 6.6% in the 30 days before

Sep 2·entry $160.08·now $82.07Fresh

-48.73%
since Sep 2

AMOM · Exit · 1d

weight 2.410% → 0 (exited)·stock up 4.3% in the 30 days before

Jun 2·entry $148.40·now $82.07

-44.70%
since Jun 2

AMOM · Accumulation · 5d

weight 2.140% → 2.410% (+0.270 pp)·stock down 0.6% in the 30 days before

Jun 1·entry $146.34·now $82.07Fresh

-43.92%
since Jun 1

AMOM · Accumulation · 6d

weight 2.110% → 2.470% (+0.360 pp)·stock up 0.3% in the 30 days before

May 29·entry $148.76·now $82.07Fresh

-44.83%
since May 29

AMOM · Accumulation · 6d

weight 2.140% → 2.470% (+0.330 pp)·stock up 2.8% in the 30 days before

May 28·entry $147.68·now $82.07Fresh

-44.43%
since May 28

AMOM · Accumulation · 5d

weight 2.170% → 2.350% (+0.180 pp)·stock down 5.7% in the 30 days before

May 27·entry $140.24·now $82.07Fresh

-41.48%
since May 27

AMOM · Weight increase · 4d

weight 2.110% → 2.320% (+0.210 pp)·stock down 6.8% in the 30 days before

May 26·entry $139.56·now $82.07Fresh

-41.19%
since May 26

AMOM · Weight increase · 3d

stock down 12.1% in the 30 days before

May 22·entry $132.06·now $82.07Fresh

-37.85%
since May 22

AMOM · Weight increase · 2d

stock down 15.7% in the 30 days before

May 21·entry $124.86·now $82.07Fresh

-34.27%
since May 21

AMOM · Weight decrease · 3d

stock down 22.0% in the 30 days before

May 19·entry $119.20·now $82.07

-31.15%
since May 19

AMOM · Weight decrease · 2d

stock down 19.4% in the 30 days before

May 18·entry $121.72·now $82.07

-32.57%
since May 18

AMOM · Weight decrease · 2d

stock down 13.0% in the 30 days before

May 11·entry $122.47·now $82.07

-32.99%
since May 11
LQAInow 0.130% of fund1 signal

LQAI · New entry · 1d

weight 0 → 0.140% (new)·stock up 7.8% in the 30 days before

Aug 6·entry $170.61·now $82.07Fresh

-51.90%
since Aug 6
PQUSnow 0.120% of fund2 signals

PQUS · New entry · 1d

weight 0 → 0.040% (new)·stock down 6.7% in the 30 days before

Jul 31·entry $160.70·now $82.07Fresh

-48.93%
since Jul 31

PQUS · Exit · 1d

weight 0.030% → 0 (exited)·stock up 23.4% in the 30 days before

Jun 12·entry $153.80·now $82.07

-46.64%
since Jun 12
AIEQno longer held5 signals

AIEQ · Exit · 1d

weight 0.110% → 0 (exited)·stock up 17.7% in the 30 days before

Jul 1·entry $172.22·now $82.07

-52.35%
since Jul 1

AIEQ · Sudden change · 1d

weight 0.510% → 0.090% (-0.420 pp)·stock up 0.3% in the 30 days before

May 30·entry $146.34·now $82.07

-43.92%
since May 30

AIEQ · Weight increase · 2d

stock down 12.1% in the 30 days before

May 24·entry $139.56·now $82.07Fresh

-41.19%
since May 24

AIEQ · Weight increase · 2d

stock down 16.1% in the 30 days before

May 15·entry $125.00·now $82.07Fresh

-34.34%
since May 15

AIEQ · Weight decrease · 2d

stock up 1.0% in the 30 days before

May 7·entry $136.62·now $82.07

-39.93%
since May 7

Sell signals show what the stock did after the AI exited. A negative number means the AI's exit was well-timed.

Buffett-style framework

Fails the frameworkas of Jul 5

One AI ETF (AIEQ) recently exited its position in Amphenol, aligning with the framework's 'Fail' verdict due to the lack of a margin of safety at current valuation levels. However, another AI ETF (QRFT) still holds a minor position, suggesting mixed views among AI-managed portfolios regarding its continued value.

  • Circle of CompetenceAmphenol's business in electronic components, sensors, and interconnects, while technical, exhibits predictable unit economics across diverse, long-lifecycle end markets, allowing for reasonable projection of future cash flows.
  • Economic MoatThe company likely benefits from strong switching costs due to its highly engineered and critical components, scale advantages in manufacturing and R&D, and deep integration with customer designs.
  • ManagementInformation regarding management's candor, capital allocation discipline, and skin in the game is not available in the provided data.
  • Financial HealthAmphenol demonstrates exceptional current financial performance with a very high ROE of 34.73%, suggesting strong underlying profitability, though full historical data for a complete 10-year assessment of all criteria is not provided.
  • Margin of SafetyThe extremely high P/E ratio of 47.38, P/B of 12.33, and EV/EBITDA of 48.84 indicate that the current market price offers no discernible margin of safety, even for a high-quality business.

Amphenol appears to be a fundamentally sound business operating within the circle of competence, possessing a durable economic moat, and demonstrating excellent financial health with high returns on equity. However, the current market valuation significantly reduces any margin of safety, leading to a 'Fail' verdict within this value investing framework. While it may be a wonderful company, its present price makes it an unsuitable investment for an approach focused on buying at a discount to intrinsic value.

Educational interpretation generated by AI applying frameworks Warren Buffett documented in his shareholder letters and other public writings. Not a statement by Mr. Buffett or Berkshire Hathaway, and not investment advice.