Hydro One (HRNNF) Operating Margin (2017 - 2026)
Hydro One's Operating Margin was 30.67% in the quarter ended Jun 30, 2026, up 0.80 percentage points from 29.86% a year earlier and up 4.05 percentage points from the prior quarter.
Hydro One (HRNNF) Operating Margin (2017 - 2026) Analysis & Trends
On a trailing twelve-month basis, Hydro One's Operating Margin was 29.05% through Jun 30, 2026, up 0.74 percentage points year-over-year; for the year ended Dec 31, 2025, it came in at 24.75%, up 1.57 percentage points from the prior year.
- Operating Margin shows a five-year change of +4.42 percentage points (years ended Dec 2020 to Dec 2025).
- In earlier years, Operating Margin was 23.18% in the year ended Dec 31, 2024 (-0.30 pp), 23.48% in the year ended Dec 31, 2023 (-0.06 pp), 23.55% in the year ended Dec 31, 2022 (+1.24 pp) and 22.31% in the year ended Dec 31, 2021 (+1.98 pp).
- The figure for the quarter ended Jun 30, 2026 marks the highest quarterly Operating Margin since the quarter ended Sep 30, 2023.
- Compared with a year earlier, Operating Margin was higher in four of the last six quarters, with an average year-over-year change of +0.18 percentage points.
- The best year-over-year quarter for Operating Margin over five years was the quarter ended Jun 30, 2025 (a gain of 4.11 percentage points); the worst was the quarter ended Mar 31, 2023 (a drop of 6.81 percentage points).
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Operating Margin (Qtr) |
|---|---|---|---|---|---|
| 1 | Enel Chile | 292.57 Bn | 292.57 Bn | 890.00 Mn | 30.20% |
| 2 | National Grid | 78.85 Bn | 60.37 Bn | - | - |
| 3 | Dominion Energy | 53.27 Bn | 55.95 Bn | - | 7.34% |
| 4 | Xcel Energy | 44.01 Bn | 38.91 Bn | - | 22.64% |
| 5 | Wec Energy | 32.84 Bn | 33.08 Bn | 1.51 Bn | 20.99% |
| 6 | Ameren | 27.51 Bn | 27.59 Bn | - | 21.94% |
| 7 | Fortis | 26.81 Bn | 27.29 Bn | 1.60 Bn | 27.43% |
| 8 | Atmos Energy | 26.44 Bn | 25.21 Bn | 870.85 Mn | 36.45% |
| 9 | American Water Works Company | 25.73 Bn | 25.14 Bn | - | 40.00% |
| 10 | Hydro One | 21.61 Bn | 20.50 Bn | - | 30.67% |
Historic Data
| Date | Value |
|---|---|
| Jun 30, 2026 | 30.67% |
| Mar 31, 2026 | 26.62% |
| Sep 30, 2025 | 29.49% |
| Jun 30, 2025 | 29.86% |
| Mar 31, 2025 | 28.36% |
| Sep 30, 2024 | 29.15% |
| Jun 30, 2024 | 25.75% |
| Mar 31, 2024 | 27.79% |
| Sep 30, 2023 | 32.16% |
| Jun 30, 2023 | 30.05% |
| Mar 31, 2023 | 23.92% |
| Sep 30, 2022 | 29.79% |
| Jun 30, 2022 | 28.42% |
| Mar 31, 2022 | 30.73% |
| Sep 30, 2021 | 28.49% |
| Jun 30, 2021 | 25.61% |
| Mar 31, 2021 | 31.31% |
| Sep 30, 2020 | 27.80% |
| Jun 30, 2020 | 23.95% |
| Mar 31, 2020 | 25.89% |
Hydro One Operating Margin API
Pull this series into your own models, spreadsheets and apps with the Business Quant
Historical Metrics API. The request below matches the chart above — change the
frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.
https://data.businessquant.com/historic?slug=operating-margin&ticker=HRNNF&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "operating-margin", "ticker": "HRNNF", "period": "max", "api_key": "YOUR_API_KEY"}
data = requests.get(url, params=params).json()const res = await fetch("https://data.businessquant.com/historic?slug=operating-margin&ticker=HRNNF&period=max&api_key=YOUR_API_KEY");
const data = await res.json();