APH monthly performance report
View APH's monthly returns, drawdown, and seasonality trends — updated every month.
APH monthly report
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Key takeaways
- Amphenol (APH) closed September 2026 at $77.55, down 51.09% for the month and −36.47% over the trailing 12 months.
- Year-to-date, APH is −42.62%, underperforming the S&P 500 which has returned +11.70% YTD.
- The stock is trading −44.70% versus its 200-day moving average ($140.23), a cautious technical signal.
- Over the past three years, APH has outperformed the S&P 500 by +8.15%, with a relative strength index reading of 104.7.
- Win rate over the trailing 39 months stands at 69.2% — 27 positive months versus 12 negative months.
Amphenol ended September 2026 at $77.55, posting a monthly return of −51.09%. The S&P 500 returned −0.70% over the same window, leaving relative performance at −50.39%.
The current quarter stands at −56.02% (Q3 2026 (QTD)), while medium-term trend remains soft: price is −44.70% versus the 200-day moving average ($140.23).
Year-to-date, APH is −42.62% against SPY +11.70%, a gap of −54.31%. The stock is currently −56.56% below its 52-week high, with maximum 3-year drawdown at −56.18%.
| Period | APH | S&P 500 (SPY) | Excess return |
|---|---|---|---|
| 1 Day | −1.05% | −0.12% | −0.93% |
| 1 Week | −7.59% | −0.34% | −7.25% |
| 1 Month | −51.09% | −0.70% | −50.39% |
| 3 Months | −51.87% | +2.80% | −54.66% |
| 6 Months | −43.31% | +13.85% | −57.16% |
| YTD | −42.62% | +11.70% | −54.31% |
| 12 Months | −36.47% | +15.01% | −51.48% |
| 3 Years | +79.85% | +71.69% | +8.15% |
| Rank | Month | Return |
|---|---|---|
| #1 | Jun 2026 | +18.53% |
| #2 | Apr 2025 | +17.32% |
| #3 | May 2025 | +16.87% |
| #4 | Apr 2026 | +16.56% |
| #5 | Sep 2025 | +13.68% |
| Rank | Month | Return |
|---|---|---|
| #1 | Sep 2026 | −51.09% |
| #2 | Mar 2026 | −13.49% |
| #3 | Jul 2026 | −8.86% |
| #4 | Feb 2025 | −5.91% |
| #5 | Sep 2023 | −4.98% |
| Quarter | Return |
|---|---|
| Q2 2025 | +50.56% |
| Q3 2025 | +25.32% |
| Q4 2025 | +9.20% |
| Q1 2026 | −6.50% |
| Q2 2026 | +39.55% |
| Q3 2026 (QTD) | −56.02% |
| Year | Return |
|---|---|
| 2023 | +30.18% |
| 2024 | +40.13% |
| 2025 | +94.59% |
| 2026 | −42.62% |
| Metric | Value |
|---|---|
| 52-Week High | $178.52 (2026-06-30) |
| 52-Week Low | $75.75 (2026-08-24) |
| Current Price | $77.55 |
| 200-Day Moving Average | $140.23 |
| Price vs 200DMA | −44.70% |
| 3-Year Maximum Drawdown | −56.18% (2026-09-16) |
| Current Drawdown from 52W High | −56.56% |
| RS metric | Value |
|---|---|
| RS Index (3-year, rebased to 100) | 104.7 |
| 3-Year Excess Return vs S&P 500 | +8.15% |
| RS Peak | 245.9 (Jan 2026) |
| RS Trough | 96.2 (Oct 2023) |
| Status | Outperforming Benchmark |
Frequently asked questions
What was APH's return for this report period?
APH returned −51.09% in the latest monthly window ending 2026-09-18.
Has APH outperformed SPY year to date?
YTD APH: −42.62% vs SPY: +11.70%.
What is APH's 12-month return?
−36.47% over the trailing 12 months.
Is APH above or below its 200-day moving average?
Price is −44.70% versus 200DMA ($140.23).
What is the maximum drawdown in the 3-year window?
−56.18% on 2026-09-16.