Hydro One Ltd (HRNNF) Operating Margin (2017 - 2021)
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 Ltd (HRNNF) Operating Margin (2017 - 2021) 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
Historic Data
| Date | Value |
|---|---|
| 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% |
| Sep 30, 2019 | 28.69% |
| Jun 30, 2019 | 23.43% |
| Mar 31, 2019 | 12.73% |
| Sep 30, 2018 | 26.03% |
| Jun 30, 2018 | 25.66% |
| Mar 31, 2018 | 26.27% |
| Sep 30, 2017 | 11.07% |
| Mar 31, 2017 | 26.90% |
Hydro One Ltd 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();