AMT monthly performance report
Monthly AMT research: returns, drawdown, relative strength, seasonality, and key stats.
AMT monthly report
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Key takeaways
- American Tower (AMT) closed September 2026 at $175.73, up 0.02% for the month and −9.25% over the trailing 12 months.
- Year-to-date, AMT is +0.09%, underperforming the S&P 500 which has returned +12.32% YTD.
- The stock is trading −1.06% versus its 200-day moving average ($177.61), a cautious technical signal.
- Over the past three years, AMT has underperformed the S&P 500 by −74.78%, with a relative strength index reading of 56.5.
- Win rate over the trailing 39 months stands at 53.8% — 21 positive months versus 18 negative months.
American Tower ended September 2026 at $175.73, posting a monthly return of +0.02%. The S&P 500 returned −0.14% over the same window, leaving relative performance at +0.16%.
The current quarter stands at +7.43% (Q3 2026 (QTD)), while medium-term trend remains soft: price is −1.06% versus the 200-day moving average ($177.61).
Year-to-date, AMT is +0.09% against SPY +12.32%, a gap of −12.23%. The stock is currently −14.37% below its 52-week high, with maximum 3-year drawdown at −33.24%.
| Period | AMT | S&P 500 (SPY) | Excess return |
|---|---|---|---|
| 1 Day | −0.07% | −0.55% | +0.48% |
| 1 Week | +0.90% | −0.44% | +1.34% |
| 1 Month | +0.02% | −0.14% | +0.16% |
| 3 Months | −3.57% | +1.17% | −4.74% |
| 6 Months | −7.63% | +11.80% | −19.43% |
| YTD | +0.09% | +12.32% | −12.23% |
| 12 Months | −9.25% | +18.05% | −27.30% |
| 3 Years | −2.85% | +71.92% | −74.78% |
| Rank | Month | Return |
|---|---|---|
| #1 | Nov 2023 | +17.17% |
| #2 | May 2024 | +14.09% |
| #3 | Jul 2024 | +13.39% |
| #4 | Feb 2025 | +11.18% |
| #5 | Oct 2023 | +8.36% |
| Rank | Month | Return |
|---|---|---|
| #1 | Apr 2024 | −13.17% |
| #2 | Jun 2026 | −12.51% |
| #3 | Dec 2024 | −12.24% |
| #4 | Mar 2026 | −10.05% |
| #5 | Jan 2024 | −9.37% |
| Quarter | Return |
|---|---|
| Q2 2025 | +1.57% |
| Q3 2025 | −12.99% |
| Q4 2025 | −8.71% |
| Q1 2026 | −1.70% |
| Q2 2026 | −5.22% |
| Q3 2026 (QTD) | +7.43% |
| Year | Return |
|---|---|
| 2023 | +1.90% |
| 2024 | −15.04% |
| 2025 | −4.27% |
| 2026 | +0.09% |
| Metric | Value |
|---|---|
| 52-Week High | $205.22 (2025-09-02) |
| 52-Week Low | $160.06 (2026-07-06) |
| Current Price | $175.73 |
| 200-Day Moving Average | $177.61 |
| Price vs 200DMA | −1.06% |
| 3-Year Maximum Drawdown | −33.24% (2026-07-06) |
| Current Drawdown from 52W High | −14.37% |
| RS metric | Value |
|---|---|
| RS Index (3-year, rebased to 100) | 56.5 |
| 3-Year Excess Return vs S&P 500 | −74.78% |
| RS Peak | 114.1 (Dec 2023) |
| RS Trough | 53.1 (Jul 2026) |
| Status | Underperforming Benchmark |
Frequently asked questions
What was AMT's return for this report period?
AMT returned +0.02% in the latest monthly window ending 2026-09-08.
Has AMT outperformed SPY year to date?
YTD AMT: +0.09% vs SPY: +12.32%.
What is AMT's 12-month return?
−9.25% over the trailing 12 months.
Is AMT above or below its 200-day moving average?
Price is −1.06% versus 200DMA ($177.61).
What is the maximum drawdown in the 3-year window?
−33.24% on 2026-07-06.