APH monthly performance report
Monthly APH research: returns, drawdown, relative strength, seasonality, and key stats.
APH monthly report
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Key takeaways
- Amphenol (APH) closed September 2026 at $82.78, down 47.79% for the month and −26.58% over the trailing 12 months.
- Year-to-date, APH is −38.75%, underperforming the S&P 500 which has returned +12.94% YTD.
- The stock is trading −41.99% versus its 200-day moving average ($142.69), a cautious technical signal.
- Over the past three years, APH has outperformed the S&P 500 by +16.24%, with a relative strength index reading of 109.8.
- Win rate over the trailing 39 months stands at 71.8% — 28 positive months versus 11 negative months.
Amphenol ended September 2026 at $82.78, posting a monthly return of −47.79%. The S&P 500 returned +0.41% over the same window, leaving relative performance at −48.20%.
The current quarter stands at −3.47% (Q3 2026 (QTD)), while medium-term trend remains soft: price is −41.99% versus the 200-day moving average ($142.69).
Year-to-date, APH is −38.75% against SPY +12.94%, a gap of −51.69%. The stock is currently −53.63% below its 52-week high, with maximum 3-year drawdown at −55.89%.
| Period | APH | S&P 500 (SPY) | Excess return |
|---|---|---|---|
| 1 Day | −48.29% | +0.66% | −48.95% |
| 1 Week | +2.59% | −0.12% | +2.71% |
| 1 Month | −47.79% | +0.41% | −48.20% |
| 3 Months | −43.92% | +2.11% | −46.04% |
| 6 Months | −36.12% | +13.21% | −49.32% |
| YTD | −38.75% | +12.94% | −51.69% |
| 12 Months | −26.58% | +18.65% | −45.23% |
| 3 Years | +86.95% | +70.70% | +16.24% |
| Rank | Month | Return |
|---|---|---|
| #1 | Aug 2026 | +101.05% |
| #2 | Jun 2026 | +19.99% |
| #3 | Apr 2025 | +17.36% |
| #4 | Apr 2026 | +15.81% |
| #5 | Sep 2025 | +15.77% |
| Rank | Month | Return |
|---|---|---|
| #1 | Sep 2026 | −47.97% |
| #2 | Mar 2026 | −10.71% |
| #3 | Jul 2026 | −7.72% |
| #4 | Sep 2023 | −5.64% |
| #5 | Jul 2024 | −5.14% |
| Quarter | Return |
|---|---|
| Q2 2025 | +48.27% |
| Q3 2025 | +29.30% |
| Q4 2025 | +9.72% |
| Q1 2026 | −4.83% |
| Q2 2026 | +41.11% |
| Q3 2026 (QTD) | −3.47% |
| Year | Return |
|---|---|
| 2023 | +30.62% |
| 2024 | +43.63% |
| 2025 | +101.52% |
| 2026 | +29.63% |
| Metric | Value |
|---|---|
| 52-Week High | $178.52 (2026-06-30) |
| 52-Week Low | $75.75 (2026-08-24) |
| Current Price | $82.78 |
| 200-Day Moving Average | $142.69 |
| Price vs 200DMA | −41.99% |
| 3-Year Maximum Drawdown | −55.89% (2026-08-24) |
| Current Drawdown from 52W High | −53.63% |
| RS metric | Value |
|---|---|
| RS Index (3-year, rebased to 100) | 109.8 |
| 3-Year Excess Return vs S&P 500 | +16.24% |
| RS Peak | 244.1 (Jan 2026) |
| RS Trough | 95.5 (Oct 2023) |
| Status | Outperforming Benchmark |
Frequently asked questions
What was APH's return for this report period?
APH returned −47.79% in the latest monthly window ending 2026-09-04.
Has APH outperformed SPY year to date?
YTD APH: −38.75% vs SPY: +12.94%.
What is APH's 12-month return?
−26.58% over the trailing 12 months.
Is APH above or below its 200-day moving average?
Price is −41.99% versus 200DMA ($142.69).
What is the maximum drawdown in the 3-year window?
−55.89% on 2026-08-24.