ACM
StockAECOM
One email when a drop — in price or in valuation — is historically rare for ACM. Otherwise we stay quiet.
This is the kind of decline worth waking up for.
AECOM is 49% off its high — among the deepest declines in its recorded history.
But down is not the same as cheap: AECOM's P/S Severity Score is 0.3 — its valuation sits in or above its typical range.
Very Large
Current Drawdown
-49.0%
Days in Drawdown
251
Avg Max Drawdown
6.4%
Avg Length
87
Drawdown Severity Score™
8.9
ACM - Price & High Water Mark
ACM - Drawdown Timeline
How to read this chart: Negative values indicate drawdowns from all-time highs. Values closer to 0% mean the stock is near its high water mark.
Valuation vs Its Own History
Data as of July 12, 2026 · updated daily
Where today's valuation sits within ACM's own multi-year range, scored with the same Drawdown Severity Score language as price, measured from its typical level rather than its record high — a higher score means it has rarely been cheaper. This is context, not a recommendation.
Price to Sales
AECOM has been cheaper on this measure only about 63% of the time in 19 years of daily history.
Price to Sales history
EV to EBITDA
AECOM has been cheaper on this measure only about 27% of the time in 19 years of daily history.
EV to EBITDA history · log scale
AECOM (ACM) Analysis: Current Drawdown Insights
AECOM is currently in a drawdown that is unusual by its own historical standards. As of 2026-07-14, the stock is trading at $68.55, which represents a 49.0% decline from its all-time high of $134.35. This drawdown has persisted for 251 days.
Based on its full tracked price history, AECOM typically experiences drawdowns averaging 6.4% in depth, with an average duration of 87 days. AECOM has gone through 76 total drawdown events in its tracked history. The largest drawdown on record for AECOM was 60.0%, beginning in 2007. The longest drawdown duration on record was 2513 days.
The Drawdown Severity Score™ for AECOM currently stands at 8.92. This is our proprietary indicator that shows the relative severity of the current drawdown based on the asset's unique historical patterns. A score between 8.0 and 12.0 indicates an extremely rare, severe drawdown: the asset almost never experiences declines of this magnitude in its tracked history.
Understanding Drawdowns: A drawdown measures how far a stock has fallen from its peak price. Every stock experiences drawdowns: periods when the price declines from all-time highs before recovering. By analyzing AECOM's historical drawdown patterns, investors can identify when the stock is experiencing a typical market fluctuation versus an unusual decline that is rare by that stock's own historical standards.
📜 Historical Drawdown Events
Current drawdown shown in blue. Showing the most recent and the deepest of 76 tracked pullbacks (60 listed).
| Start Date | End Date | Duration | Max Depth | Start Price | Lowest Price | Recovery Price |
|---|---|---|---|---|---|---|
| 2025-11-05 | Ongoing | 251 days | -49.0% | $134.35 | $68.55 | n/a |
| 2025-10-22 | 2025-10-31 | 10 days | -3.0% | $134.22 | $130.17 | $134.35 |
| 2025-10-16 | 2025-10-20 | 5 days | -1.5% | $132.81 | $130.87 | $133.65 |
| 2025-09-19 | 2025-10-15 | 27 days | -3.5% | $132.72 | $128.10 | $132.81 |
| 2025-09-17 | 2025-09-18 | 2 days | -0.7% | $127.49 | $126.64 | $132.72 |
| 2025-09-12 | 2025-09-15 | 4 days | -0.8% | $127.41 | $126.35 | $127.48 |
| 2025-09-09 | 2025-09-11 | 3 days | -2.0% | $126.65 | $124.05 | $127.41 |
| 2025-08-29 | 2025-09-04 | 7 days | -1.3% | $125.49 | $123.83 | $125.69 |
| 2025-08-14 | 2025-08-22 | 9 days | -2.0% | $121.78 | $119.33 | $122.73 |
| 2025-08-08 | 2025-08-11 | 4 days | -0.7% | $118.97 | $118.19 | $119.00 |
| 2025-08-06 | 2025-08-07 | 2 days | -0.1% | $118.76 | $118.59 | $118.97 |
| 2024-12-02 | 2025-08-05 | 246 days | -25.1% | $115.87 | $86.82 | $118.76 |
| 2024-11-26 | 2024-11-29 | 4 days | -0.1% | $115.79 | $115.64 | $115.87 |
| 2024-11-07 | 2024-11-22 | 16 days | -6.3% | $113.04 | $105.92 | $115.21 |
| 2024-10-30 | 2024-11-05 | 7 days | -1.5% | $107.44 | $105.79 | $108.87 |
| 2024-10-21 | 2024-10-29 | 9 days | -3.2% | $106.87 | $103.50 | $107.44 |
| 2024-10-15 | 2024-10-16 | 2 days | -0.1% | $105.36 | $105.21 | $106.25 |
| 2024-10-08 | 2024-10-11 | 4 days | -1.0% | $104.21 | $103.16 | $104.82 |
| 2024-10-01 | 2024-10-04 | 4 days | -1.0% | $102.08 | $101.01 | $102.76 |
| 2024-09-25 | 2024-09-26 | 2 days | -1.2% | $101.06 | $99.89 | $102.00 |
| 2024-08-28 | 2024-09-23 | 27 days | -7.5% | $100.48 | $92.96 | $100.79 |
| 2024-03-22 | 2024-08-23 | 155 days | -15.9% | $96.78 | $81.42 | $97.03 |
| 2023-12-20 | 2024-03-19 | 90 days | -6.3% | $91.69 | $85.89 | $92.12 |
| 2023-12-15 | 2023-12-19 | 5 days | -1.1% | $91.54 | $90.54 | $91.69 |
| 2023-12-08 | 2023-12-11 | 4 days | -0.3% | $89.78 | $89.51 | $89.87 |
| 2023-02-15 | 2023-12-04 | 293 days | -17.4% | $88.82 | $73.40 | $88.90 |
| 2023-02-09 | 2023-02-14 | 6 days | -1.4% | $88.79 | $87.55 | $88.82 |
| 2023-01-25 | 2023-02-03 | 10 days | -2.1% | $85.29 | $83.49 | $85.43 |
| 2023-01-23 | 2023-01-24 | 2 days | -0.7% | $84.57 | $83.94 | $85.29 |
| 2023-01-18 | 2023-01-20 | 3 days | -1.1% | $84.40 | $83.45 | $84.57 |
| 2022-12-05 | 2023-01-12 | 39 days | -5.3% | $83.56 | $79.16 | $83.71 |
| 2022-11-28 | 2022-11-30 | 3 days | -1.9% | $81.81 | $80.24 | $82.69 |
| 2022-11-16 | 2022-11-18 | 3 days | -1.4% | $77.64 | $76.53 | $77.70 |
| 2022-03-28 | 2022-11-15 | 233 days | -22.8% | $76.90 | $59.33 | $77.64 |
| 2022-03-22 | 2022-03-25 | 4 days | -2.9% | $76.71 | $74.50 | $76.90 |
| 2022-01-05 | 2022-03-18 | 72 days | -14.3% | $75.27 | $64.51 | $75.44 |
| 2021-12-30 | 2021-12-31 | 2 days | -0.2% | $74.31 | $74.15 | $74.62 |
| 2021-11-26 | 2021-12-23 | 28 days | -10.0% | $72.47 | $65.25 | $73.18 |
| 2021-11-17 | 2021-11-22 | 6 days | -1.1% | $70.65 | $69.90 | $70.76 |
| 2021-11-10 | 2021-11-15 | 6 days | -1.0% | $68.80 | $68.13 | $70.09 |
| 2021-11-02 | 2021-11-05 | 4 days | -1.8% | $66.92 | $65.70 | $67.47 |
| 2021-10-26 | 2021-11-01 | 7 days | -3.5% | $66.91 | $64.60 | $66.92 |
| 2021-05-10 | 2021-10-25 | 169 days | -14.9% | $66.67 | $56.75 | $66.91 |
| 2021-04-27 | 2021-05-05 | 9 days | -1.7% | $65.21 | $64.08 | $65.77 |
| 2021-04-16 | 2021-04-23 | 8 days | -1.8% | $64.92 | $63.73 | $64.97 |
| 2021-04-13 | 2021-04-15 | 3 days | -0.4% | $64.21 | $63.98 | $64.92 |
| 2021-04-07 | 2021-04-12 | 6 days | -1.0% | $64.12 | $63.46 | $64.21 |
| 2021-03-31 | 2021-04-05 | 6 days | -1.8% | $62.98 | $61.85 | $63.62 |
| 2021-03-29 | 2021-03-30 | 2 days | -1.6% | $62.16 | $61.20 | $62.98 |
| 2021-03-15 | 2021-03-25 | 11 days | -3.8% | $60.49 | $58.16 | $60.67 |
| 2021-02-25 | 2021-03-10 | 14 days | -5.5% | $57.77 | $54.58 | $58.66 |
| 2021-01-08 | 2021-02-08 | 32 days | -8.9% | $53.04 | $48.33 | $53.27 |
| 2020-12-03 | 2021-01-06 | 35 days | -10.9% | $50.68 | $45.15 | $52.88 |
| 2020-02-24 | 2020-11-24 | 275 days | -54.1% | $50.09 | $22.98 | $50.34 |
| 2020-01-21 | 2020-02-19 | 30 days | -6.4% | $48.55 | $45.44 | $48.96 |
| 2016-12-09 | 2019-10-16 | 1041 days | -37.9% | $38.71 | $24.04 | $39.12 |
| 2014-08-27 | 2016-12-06 | 833 days | -39.3% | $36.78 | $22.33 | $36.93 |
| 2007-10-03 | 2014-08-19 | 2513 days | -60.0% | $35.93 | $14.38 | $35.98 |
| 2007-07-16 | 2007-09-17 | 64 days | -13.4% | $27.18 | $23.54 | $28.03 |
| 2007-06-19 | 2007-07-05 | 17 days | -8.0% | $25.08 | $23.08 | $25.42 |
| 2007-05-23 | 2007-06-15 | 24 days | -6.4% | $23.10 | $21.63 | $23.84 |
How to read: Each row shows a complete drawdown from peak to recovery. Red rows = most severe drawdowns (worst 20% or 5x+ average), yellow rows = moderate (2x-5x worse than average).
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Or explore current drawdowns:
AECOM (ACM) is trading at $68.55 as of Jul 14, 2026. It is 49.0% below its high of $134.35. The drawdown has lasted 251 days. Severity score: 8.9 (Very Large).
ACM Price History and Drawdown Data
Latest price
$68.55
High-water mark
$134.35
Current drawdown
-49.0%
Days in drawdown
251
This ACM page is built around daily price history, the latest high-water mark, current drawdown depth, drawdown duration, and comparable historical drawdown events. The chart above provides the price-history context, while the sections below explain how the current move compares with prior AECOM drawdowns.
What History Says About ACM
AECOM has dropped 15%+ from its high 8 times in its tracked history. These events lasted an average of 699 days with an average max drop of -34.1%.
The current drawdown of -49.0% has lasted 251 days, which is within the typical range for comparable events.
| Period | Max Drop | Duration |
|---|---|---|
| Oct 2007 to Aug 2014 | -60.0% | 2513 days |
| Feb 2020 to Nov 2020 | -54.1% | 275 days |
| Aug 2014 to Dec 2016 | -39.3% | 833 days |
| Dec 2016 to Oct 2019 | -37.9% | 1041 days |
| Dec 2024 to Aug 2025 | -25.1% | 246 days |
| Mar 2022 to Nov 2022 | -22.8% | 233 days |
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