H.TO vs. ACO-X.TO
H.TO (Hydro One Limited) and ACO-X.TO (ATCO Ltd) are both stocks. Both are in the Utilities sector — H.TO in Utilities - Regulated Electric, ACO-X.TO in Utilities - Diversified. Over the past 10 years, H.TO returned 12.57%/yr vs 9.15%/yr for ACO-X.TO. At a 0.47 correlation, their price movements are largely independent.
Performance
H.TO vs. ACO-X.TO - Performance Comparison
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Returns By Period
In the year-to-date period, H.TO achieves a 5.00% return, which is significantly lower than ACO-X.TO's 30.25% return. Over the past 10 years, H.TO has outperformed ACO-X.TO with an annualized return of 12.57%, while ACO-X.TO has yielded a comparatively lower 9.15% annualized return.
H.TO
- 1D
- 0.73%
- 1M
- -2.93%
- YTD
- 5.00%
- 6M
- 8.78%
- 1Y
- 18.34%
- 3Y*
- 17.83%
- 5Y*
- 16.44%
- 10Y*
- 12.57%
ACO-X.TO
- 1D
- -0.45%
- 1M
- 6.04%
- YTD
- 30.25%
- 6M
- 37.62%
- 1Y
- 45.31%
- 3Y*
- 26.35%
- 5Y*
- 14.33%
- 10Y*
- 9.15%
H.TO vs. ACO-X.TO - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
H.TO Hydro One Limited | 5.00% | 26.73% | 14.75% | 12.95% | 13.74% | 18.87% | 18.51% | 29.04% | -5.41% | -1.36% |
ACO-X.TO ATCO Ltd | 30.25% | 23.29% | 28.83% | -4.26% | 3.50% | 22.23% | -23.55% | 33.41% | -10.91% | 3.62% |
Correlation
The correlation between H.TO and ACO-X.TO is 0.43, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.43 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.54 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.53 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.47 |
Correlation (All Time) Calculated using the full available price history since Nov 5, 2015 | 0.47 |
The correlation between H.TO and ACO-X.TO shifts across timeframes, from 0.43 (1 year) to 0.54 (3 years), reflecting how their relationship changes across market environments.
Fundamentals
H.TO:
CA$34.05B
ACO-X.TO:
CA$8.19B
H.TO:
CA$2.28
ACO-X.TO:
CA$1.40
H.TO:
24.81
ACO-X.TO:
51.63
H.TO:
2.89
ACO-X.TO:
2.46
H.TO:
3.67
ACO-X.TO:
1.58
H.TO:
2.65
ACO-X.TO:
1.76
H.TO:
CA$9.28B
ACO-X.TO:
CA$5.16B
H.TO:
CA$2.54B
ACO-X.TO:
CA$1.64B
H.TO:
CA$3.36B
ACO-X.TO:
CA$2.10B
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Return for Risk
H.TO vs. ACO-X.TO — Risk / Return Rank
H.TO
ACO-X.TO
H.TO vs. ACO-X.TO - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Hydro One Limited (H.TO) and ATCO Ltd (ACO-X.TO). 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.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| H.TO | ACO-X.TO | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.53 | ||
| Sortino ratioReturn per unit of downside risk | -1.91 | ||
| Omega ratioGain probability vs. loss probability | 1.25 | 1.51 | -0.26 |
| Calmar ratioReturn relative to maximum drawdown | 2.41 | 5.82 | -3.40 |
| Martin ratioReturn relative to average drawdown | 6.86 | 14.46 | -7.60 |
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Drawdowns
H.TO vs. ACO-X.TO - Drawdown Comparison
The maximum H.TO drawdown since its inception was -27.68%, smaller than the maximum ACO-X.TO drawdown of -48.31%. Use the drawdown chart below to compare losses from any high point for H.TO and ACO-X.TO.
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Drawdown Indicators
| H.TO | ACO-X.TO | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -27.68% | -48.31% | +20.63% |
Max Drawdown (1Y)Largest decline over 1 year | -7.63% | -7.83% | +0.20% |
Max Drawdown (3Y)Largest decline over 3 years | -12.77% | -15.90% | +3.13% |
Max Drawdown (5Y)Largest decline over 5 years | -17.08% | -26.85% | +9.77% |
Max Drawdown (10Y)Largest decline over 10 years | -27.68% | -48.31% | +20.63% |
Current DrawdownCurrent decline from peak | -5.19% | -0.86% | -4.33% |
Average DrawdownAverage peak-to-trough decline | -6.07% | -12.82% | +6.75% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.68% | 3.14% | -0.46% |
Volatility
H.TO vs. ACO-X.TO - Volatility Comparison
The current volatility for Hydro One Limited (H.TO) is 4.96%, while ATCO Ltd (ACO-X.TO) has a volatility of 6.13%. This indicates that H.TO experiences smaller price fluctuations and is considered to be less risky than ACO-X.TO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| H.TO | ACO-X.TO | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.96% | 6.13% | -1.17% |
Volatility (6M)Calculated over the trailing 6-month period | 10.46% | 11.64% | -1.18% |
Volatility (1Y)Calculated over the trailing 1-year period | 12.89% | 15.43% | -2.54% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 14.58% | 15.77% | -1.19% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 16.00% | 20.58% | -4.58% |
Dividends
H.TO vs. ACO-X.TO - Dividend Comparison
H.TO's dividend yield for the trailing twelve months is around 2.39%, less than ACO-X.TO's 2.83% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
ACO-X.TO ATCO Ltd | 2.83% | 3.58% | 4.12% | 4.92% | 4.36% | 4.20% | 4.77% | 3.25% | 3.90% | 2.91% | 2.55% | 2.77% |
H.TO Hydro One Limited | 2.39% | 2.40% | 2.80% | 2.94% | 3.05% | 3.20% | 3.50% | 3.81% | 4.49% | 3.88% | 4.11% | 0.00% |
Financials
H.TO vs. ACO-X.TO - Financials Comparison
This section allows you to compare key financial metrics between Hydro One Limited and ATCO Ltd. 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
H.TO vs. ACO-X.TO - Profitability Comparison
H.TO - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Hydro One Limited reported a gross profit of 622.00M and revenue of 2.65B. Therefore, the gross margin over that period was 23.5%.
ACO-X.TO - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, ATCO Ltd reported a gross profit of 592.00M and revenue of 1.43B. Therefore, the gross margin over that period was 41.5%.
H.TO - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Hydro One Limited reported an operating income of 622.00M and revenue of 2.65B, resulting in an operating margin of 23.5%.
ACO-X.TO - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, ATCO Ltd reported an operating income of 401.00M and revenue of 1.43B, resulting in an operating margin of 28.1%.
H.TO - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Hydro One Limited reported a net income of 391.00M and revenue of 2.65B, resulting in a net margin of 14.8%.
ACO-X.TO - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, ATCO Ltd reported a net income of 152.00M and revenue of 1.43B, resulting in a net margin of 10.7%.
Frequently Asked Questions
H.TO and ACO-X.TO have a correlation of 0.43, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
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