ACM vs. STN
ACM (AECOM) and STN (Stantec Inc) are both stocks. Both operate in the Engineering & Construction industry within the Industrials sector. Over the past 10 years, ACM returned 8.98%/yr vs 12.60%/yr for STN. At a 0.40 correlation, their price movements are largely independent.
Performance
ACM vs. STN - Performance Comparison
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Returns By Period
In the year-to-date period, ACM achieves a -23.53% return, which is significantly lower than STN's -21.77% return. Over the past 10 years, ACM has underperformed STN with an annualized return of 8.98%, while STN has yielded a comparatively higher 12.60% annualized return.
ACM
- 1D
- 1.36%
- 1M
- -13.83%
- YTD
- -23.53%
- 6M
- -29.83%
- 1Y
- -33.86%
- 3Y*
- -2.70%
- 5Y*
- 3.15%
- 10Y*
- 8.98%
STN
- 1D
- -1.71%
- 1M
- -19.01%
- YTD
- -21.77%
- 6M
- -22.91%
- 1Y
- -29.36%
- 3Y*
- 7.59%
- 5Y*
- 11.61%
- 10Y*
- 12.60%
ACM vs. STN - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
ACM AECOM | -23.53% | -9.91% | 16.67% | 9.77% | 10.72% | 55.38% | 15.42% | 62.75% | -28.67% | 2.17% |
STN Stantec Inc | -21.77% | 21.08% | -1.44% | 68.90% | -13.76% | 75.67% | 16.56% | 31.83% | -20.43% | 12.80% |
Correlation
The correlation between ACM and STN is 0.55, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.55 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.50 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.53 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.44 |
Correlation (All Time) Calculated using the full available price history since May 11, 2007 | 0.40 |
The correlation between ACM and STN shifts across timeframes, from 0.40 (all time) to 0.55 (1 year), reflecting how their relationship changes across market environments.
Fundamentals
ACM:
$9.46B
STN:
$8.39B
ACM:
$3.82
STN:
$3.98
ACM:
18.94
STN:
18.47
ACM:
0.11
STN:
0.77
ACM:
0.60
STN:
1.08
ACM:
4.17
STN:
2.48
ACM:
$15.99B
STN:
$7.77B
ACM:
$1.24B
STN:
$3.11B
ACM:
$976.83M
STN:
$1.05B
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Return for Risk
ACM vs. STN — Risk / Return Rank
ACM
STN
ACM vs. STN - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for AECOM (ACM) and Stantec Inc (STN). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
| ACM | STN | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | 0.00 | ||
| Sortino ratioReturn per unit of downside risk | +0.02 | ||
| Omega ratioGain probability vs. loss probability | 0.80 | 0.82 | -0.02 |
| Calmar ratioReturn relative to maximum drawdown | -0.71 | -0.83 | +0.12 |
| Martin ratioReturn relative to average drawdown | -1.41 | -1.94 | +0.53 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| ACM | STN | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | -1.07 | -1.07 | 0.00 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.12 | 0.46 | -0.34 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.29 | 0.49 | -0.20 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.19 | 0.40 | -0.21 |
Drawdowns
ACM vs. STN - Drawdown Comparison
The maximum ACM drawdown since its inception was -59.97%, smaller than the maximum STN drawdown of -67.42%. Use the drawdown chart below to compare losses from any high point for ACM and STN.
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Drawdown Indicators
| ACM | STN | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -59.97% | -67.42% | +7.45% |
Max Drawdown (1Y)Largest decline over 1 year | -48.02% | -35.66% | -12.36% |
Max Drawdown (3Y)Largest decline over 3 years | -48.02% | -35.66% | -12.36% |
Max Drawdown (5Y)Largest decline over 5 years | -48.02% | -35.66% | -12.36% |
Max Drawdown (10Y)Largest decline over 10 years | -54.12% | -35.66% | -18.46% |
Current DrawdownCurrent decline from peak | -45.74% | -34.96% | -10.78% |
Average DrawdownAverage peak-to-trough decline | -18.45% | -17.10% | -1.35% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 24.02% | 15.17% | +8.85% |
Volatility
ACM vs. STN - Volatility Comparison
AECOM (ACM) has a higher volatility of 14.67% compared to Stantec Inc (STN) at 12.96%. This indicates that ACM's price experiences larger fluctuations and is considered to be riskier than STN based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| ACM | STN | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 14.67% | 12.96% | +1.71% |
Volatility (6M)Calculated over the trailing 6-month period | 26.16% | 23.83% | +2.33% |
Volatility (1Y)Calculated over the trailing 1-year period | 31.88% | 27.63% | +4.25% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 26.66% | 25.20% | +1.46% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 31.17% | 25.63% | +5.54% |
Dividends
ACM vs. STN - Dividend Comparison
ACM's dividend yield for the trailing twelve months is around 1.57%, more than STN's 1.07% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
ACM AECOM | 1.57% | 1.09% | 0.82% | 0.78% | 0.71% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
STN Stantec Inc | 1.07% | 0.69% | 0.78% | 0.79% | 1.14% | 1.17% | 1.42% | 1.55% | 1.91% | 1.79% | 1.78% | 1.69% |
Financials
ACM vs. STN - Financials Comparison
This section allows you to compare key financial metrics between AECOM and Stantec Inc. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
ACM vs. STN - Profitability Comparison
ACM - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, AECOM reported a gross profit of 296.50M and revenue of 3.80B. Therefore, the gross margin over that period was 7.8%.
STN - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Stantec Inc reported a gross profit of 821.42M and revenue of 2.07B. Therefore, the gross margin over that period was 39.6%.
ACM - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, AECOM reported an operating income of 229.65M and revenue of 3.80B, resulting in an operating margin of 6.0%.
STN - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Stantec Inc reported an operating income of 175.05M and revenue of 2.07B, resulting in an operating margin of 8.4%.
ACM - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, AECOM reported a net income of 179.86M and revenue of 3.80B, resulting in a net margin of 4.7%.
STN - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Stantec Inc reported a net income of 111.09M and revenue of 2.07B, resulting in a net margin of 5.4%.
Frequently Asked Questions
ACM and STN have a correlation of 0.55, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
ACM has higher volatility (14.67%) compared to STN (12.96%). In terms of maximum drawdown, ACM dropped -59.97% vs STN's -67.42%.
STN currently has the higher Sharpe Ratio (-1.07 vs -1.07), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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