Amphenol (APH)
Forward P/E 25.98x against a peer median of 24.98x gives a ratio of 1.04x, inside the fairly-priced band, with trailing P/E 40.34x reflecting earnings still catching up to growth. The small premium is paid for by delivery: latest-quarter revenue grew +55.0% YoY (PRIMARY/EDGAR), the fastest in this peer set and well above the cluster median of +20.4%, while PEG 1.28 is moderate rather than stretched. Delivered demand check: the Electronics, components & manufacturing group's median latest-quarter revenue growth was 20.4% year over year (SEC filings) — demand rising, and Amphenol is outgrowing it without a growth-stock multiple.
What would change this label: Moves to UNDERVALUED if the forward P/E compresses below ~22.5x (ratio under 0.90x) while revenue growth holds above +30% YoY; moves to OVERVALUED if revenue growth slows below +15% YoY while the forward P/E holds above ~26x.
Amphenol makes the connectors and cables that link servers, cars and factory equipment together. Sales jumped 55% in the latest quarter thanks largely to AI data-centre building, yet the shares cost about the same relative to expected profits as its rivals. That makes the price fair: strong growth, but you are already paying properly for it.
Both lines start at 100 on 2020-09-01. Over the full window Amphenol returned +464.74% and the S&P 500 +118.28% (price returns; dividends not reinvested). Worst peak-to-trough fall for Amphenol: -28.9% (2021-12-29 to 2022-06-16). Source: Nasdaq official daily history.
What the label rests on
Forward P/E 25.98x against a peer median of 24.98x gives a ratio of 1.04x, inside the fairly-priced band, with trailing P/E 40.34x reflecting earnings still catching up to growth. The small premium is paid for by delivery: latest-quarter revenue grew +55.0% YoY (PRIMARY/EDGAR), the fastest in this peer set and well above the cluster median of +20.4%, while PEG 1.28 is moderate rather than stretched. Delivered demand check: the Electronics, components & manufacturing group's median latest-quarter revenue growth was 20.4% year over year (SEC filings) — demand rising, and Amphenol is outgrowing it without a growth-stock multiple. The company’s forward P/E is 26.0× against a peer median of 25.0×. Its own history: UNVERIFIED — no sourced range available. Sector demand read: Delivered demand check: the Electronics, components & manufacturing group's median latest-quarter revenue growth was 20.4% year over year (SEC filings) — demand rising. Latest-quarter sales growth was +55.0% versus a year earlier (SEC filings).
| Company | Price (Oct 28, 2026) | Forward P/E | Trailing P/E |
|---|---|---|---|
| Amphenol (APH) | $80.63 | 26.0× | 40.3× |
| GLW | $126.13 | 30.9× | 51.0× |
| TEL | $212.97 | 16.0× | 20.9× |
| KEYS | $336.10 | 25.1× | 46.2× |
| COHR | $234.58 | 25.0× | 56.9× |
| ROP | $434.48 | 17.9× | 17.3× |
| Peer median | 25.0× |
Multiples: stockanalysis.com (SECONDARY, S&P Global data), fetched Oct 28, 2026. Peer set chosen by sector; the median is the middle value of the set. The label and its numbers were recorded in the programme’s label registry on Oct 28, 2026 and will be scored at 6 and 12 months.
Sales, profit and cash
Gross margin = gross profit divided by sales, from SEC filings.
Free cash flow = cash from operations minus spending on plant and equipment, both from the company’s SEC cash-flow statement. Gaps are quarters where that spending line is not separately tagged in the filings — shown as gaps, never estimated.
| Quarter | Sales | Gross margin | Net income | EPS (GAAP, diluted) | Free cash flow |
|---|---|---|---|---|---|
| Q/E Jun 2026 2026-06-30 | $8.8B | 40.5% | $1.8B | 1.37 | $1.2B |
| Q/E Mar 2026 2026-03-31 | $7.6B | 36.8% | $933M | 0.72 | $830M |
| Q/E Dec 2025 2025-12-31 | $6.4B | 38.2% | $1.2B | — | $1.5B |
| Q/E Sep 2025 2025-09-30 | $6.2B | 38.1% | $1.2B | 0.97 | $1.2B |
| Q/E Jun 2025 2025-06-30 | $5.7B | 36.3% | $1.1B | 0.86 | $1.1B |
| Q/E Mar 2025 2025-03-31 | $4.8B | 34.2% | $738M | 0.58 | $576M |
| Q/E Dec 2024 2024-12-31 | $4.3B | 34.3% | $746M | — | $647M |
| Q/E Sep 2024 2024-09-30 | $4.0B | 33.6% | $604M | 0.48 | $474M |
| Q/E Jun 2024 2024-06-30 | $3.6B | 33.6% | $525M | 0.41 | $523M |
| Q/E Mar 2024 2024-03-31 | $3.3B | 33.4% | $549M | 0.87 | $505M |
| Q/E Dec 2023 2023-12-31 | $3.3B | 33.1% | $514M | — | $737M |
| Q/E Sep 2023 2023-09-30 | $3.2B | 32.8% | $514M | 0.83 | $543M |
The last twelve reported quarters. Full 24-quarter history sits in the data pack behind this page. A dash means the figure is not tagged as a standalone quarter in the company’s SEC facts (the usual case is the fourth quarter, which many companies only report inside the full-year filing) — it is missing, not zero.
Earnings: getting better or worse?
Each box is one quarter’s earnings per share (EPS). Green means EPS was higher than the same quarter a year earlier; red means lower; a dash means the figure is not tagged in the filings.
Basis: GAAP diluted EPS from SEC company facts, compared with the same quarter a year earlier.
Key facts
| Item | Value |
|---|---|
| Company (legal name in filings) | AMPHENOL CORP /DE/ |
| Chief executive | R. Adam Norwitt (source: https://investors.amphenol.com/news-and-events/news-details/2026/Amphenol-Announces-Board-Succession-Plan/default.aspx) |
| Sector | Technology — Electronic Components — connectors, interconnect systems and antennas for data, automotive and industrial markets |
| Share price (Oct 28, 2026) | $80.63 |
| Market value (market cap) | $96.4B — share price times shares outstanding of 1,232,983,457 (SEC filings; SEC EDGAR dei EntityCommonStockSharesOutstanding (latest)) |
| Sales, last twelve months | $29.0B |
| Net income, last twelve months | $5.1B |
| Free cash flow, last twelve months | $4.7B |
| Latest reported quarter | Q/E Jun 2026 (of 24 quarters in the data pack) |
| Six-year price return vs S&P 500 | +464.74% vs +118.28% |
| Worst peak-to-trough fall | -28.9% (2021-12-29 to 2022-06-16) |
What we could not verify
- TTM GAAP diluted EPS could not be summed from company facts because at least one of the last four quarters (typically Q4) has no standalone tagged EPS; trailing P/E is therefore taken from the labelled secondary source in valuation_label.md.
- Own-history P/E range not yet compiled for this company in the Phase 1 batch run; the label rests on peer-median, growth and PEG evidence.
- Valuation multiples were captured on Oct 28 at $80.63 while the price series closes Oct 27 at $78.21 — the shares moved between the two; multiples correspond to the captured price.
- Guidance record (each quarter scored against the guidance the company gave the quarter before) is not yet compiled for this company — it is a Phase 2 layer. The earnings strip below therefore uses reported EPS versus a year earlier, which is fully sourced from filings.
The IT factor — the most exciting thing the market is overlooking — is not assessed on an X-Ray page. It belongs to the Deep Dive (Phase 2), where it gets the evidence standard it needs. Leadership-era scoring (the six years split by chief executive) is likewise a Phase 2 layer; this page names the current chief executive only, from a sourced profile.
Sources
- SEC EDGAR submissions — Filing index; company legal name.
https://data.sec.gov/submissions/CIK0000820313.json - SEC EDGAR company facts — Quarterly financial spine: revenue, gross profit, net income, GAAP diluted EPS, operating cash flow, PP&E capex, buybacks, dividends, diluted shares.
https://data.sec.gov/api/xbrl/companyfacts/CIK0000820313.json - Nasdaq official daily history — Daily closes for the company; SPY (assetclass=etf) saved as raw/nasdaq_spy_raw.json over identical dates.
https://api.nasdaq.com/api/quote/APH/historical?assetclass=stocks - Valuation multiples and peer figures — stockanalysis.com (SECONDARY, S&P Global data), fetched Oct 28, 2026; see valuation_label.md in the data pack.
Conventions: earliest-filed value per period, as first reported; cash-flow years-to-date differenced quarter by quarter; EPS never differenced; free cash flow = operating cash flow minus plant-and-equipment spending. This page is a dated snapshot — updates are new versions, never silent edits.