Hydro One Ltd (H_TSE)
H_TSE moved a median of +0.03% 30 minutes after news, and +0.12% by the close. How H_TSE actually reacts to news — the realized, point-in-time move the market made, measured across 195 labeled events over the last three years with zero look-ahead.
H_TSE’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -0.39% | 32% | 68 |
| 30-min | +0.03% | 52% | 68 |
| 60-min | -0.04% | 44% | 68 |
| to close | +0.12% | 62% | 68 |
| Middle 50% of H_TSE reactions | -0.49% to +0.52% |
|---|---|
| Median reaction (30-min) | +0.03% |
| Measured reactions | 195 |
Half of all Hydro One Ltd news events land between -0.49% and +0.52% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
Email me when H_TSE moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to H_TSE's baseline. Nothing else.
Recent H_TSE events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Hydro One to Release Third Quarter 2026 Results on November 10, 2026 Before Markets Open | Press release | Canada Newswire | — | — | |
| Hydro One submits five-year investment plan to the Ontario Energy Board to support reliability, security and growth | Press release | Canada Newswire | — | — | |
| 15 coaches receive Ontario's highest award for excellence from the Coaches Association of Ontario | Press release | Canada Newswire | — | — | |
| Hydro One seeks approval from the Ontario Energy Board to build the North Shore Link | Press release | Canada Newswire | — | — | |
| Hydro One Limited Declares Quarterly Common Share Dividend | Press release | Canada Newswire | — | — | |
| Hydro One reports second quarter results | Press release | Canada Newswire | — | — | |
| Hydro One to Release Second Quarter 2026 Results on August 12, 2026 Before Markets Open | Press release | Canada Newswire | — | — | |
| Hydro One seeks approval from the Ontario Energy Board to build the Durham Kawartha Power Line | Press release | Canada Newswire | — | — | |
| Hydro One Limited welcomes new President and CEO and announces election of Directors | Press release | Canada Newswire | — | — | |
| Hydro One seeks approval from the Ontario Energy Board to build the Orléans Area Reinforcement Project | Press release | Canada Newswire | — | — | |
| Hydro One Inc. announces pricing of inaugural offering of US$ 1.0 billion of 5-year senior notes | Press release | Canada Newswire | — | — | |
| Coaches Association of Ontario and Hydro One invest in safe and accessible sport with the 2026 Community Coaching Grant | Press release | Canada Newswire | — | — | |
| Hydro One seeks approval from the Ontario Energy Board to build the Northeast Power Line and the Longwood to Lakeshore Transmission Line | Press release | Canada Newswire | — | — | |
| Hydro One Limited Declares Quarterly Common Share Dividend | Press release | Canada Newswire | — | — | |
| Hydro One reports first quarter results | Press release | Canada Newswire | — | — | |
| Hydro One highlights safety performance, Indigenous procurement and partnerships in its 2025 Sustainability Report | Press release | Canada Newswire | — | — | |
| Ontario designates Hydro One to invest in the Red Lake Transmission Line | Press release | Canada Newswire | — | — | |
| Hydro One to Release First Quarter 2026 Results on May 13, 2026 Before Markets Open | Press release | Canada Newswire | — | — | |
| Hydro One receives regulatory decision regarding its 2026 Annual Update application | Press release | Canada Newswire | — | — | |
| Your yard has secrets: neighbours could pay the price if you don’t click before you dig | Press release | GlobeNewswire | — | — | |
| Hydro One Limited appoints Megan Telford as President and CEO following David Lebeter's retirement on June 9, 2026 | Press release | PR Newswire | — | — | |
| Government of Ontario nominee appointed to the Board of Directors of Hydro One Limited | Press release | PR Newswire | — | — | |
| Hydro One Limited Declares Quarterly Common Share Dividend | Press release | PR Newswire | — | — | |
| Hydro One Reports Fourth Quarter Results | Press release | PR Newswire | — | — | |
| Ontario selects Hydro One to build new priority transmission line between Sudbury and Barrie | Press release | PR Newswire | — | — | |
| Members of the Society of United Professionals ratify collective agreement | Press release | PR Newswire | — | — | |
| Ontario designates Hydro One to build the Greenstone Transmission Line | Press release | PR Newswire | — | — | |
| Hydro One and the Society of United Professionals reach tentative agreement | Press release | PR Newswire | — | — | |
| Hydro One to Release Fourth Quarter 2025 Results on February 13, 2026 Before Markets Open | Press release | PR Newswire | — | — | |
| New report finds 50 per cent of youth athletes in Ontario say their coach is the adult they trust the most in their lives, yet hazing remains a widespread issue | Press release | Canada Newswire | — | — | |
| Ontario selects Hydro One to invest in priority transmission line in partnership with First Nations | Press release | PR Newswire | — | — | |
| Hydro One Inc. Prices Offering of $1.6 Billion Medium Term Notes under Sustainable Financing Framework | Press release | Canada Newswire | — | — | |
| Hydro One seeks approval to build the Welland Thorold Power Line | Press release | PR Newswire | — | — | |
| Hydro One Limited Declares Quarterly Common Share Dividend | Press release | PR Newswire | — | — | |
| Hydro One Reports Third Quarter Results | Press release | PR Newswire | — | — | |
| Hydro One to Release Third Quarter 2025 Results on November 13, 2025 Before Markets Open | Press release | PR Newswire | — | — | |
| 15 coaches honoured with the province's highest award for excellence from the Coaches Association of Ontario and Hydro One | Press release | Canada Newswire | — | — | |
| Hydro One breaks ground on the St. Clair Transmission Line to power southwest Ontario | Press release | Canada Newswire | — | — | |
| Hydro One Inc. Prices Offering of $1.1 Billion Medium Term Notes under Sustainable Financing Framework | Press release | Canada Newswire | — | — | |
| Hydro One Limited Board of Directors appoints Harry Taylor as Interim President and CEO as David Lebeter takes a temporary compassionate care leave | Press release | PR Newswire | — | — | |
| Hydro One Limited Declares Quarterly Common Share Dividend | Press release | Canada Newswire | — | — | |
| Hydro One Reports Second Quarter Results | Press release | Canada Newswire | — | — | |
| Hydro One To Release Second Quarter 2025 Results on August 13, 2025 Before Markets Open | Press release | Canada Newswire | — | — | |
| Hydro One Limited Announces Election of Directors | Press release | Canada Newswire | — | — | |
| Hydro One and ACT Foundation celebrate more than 25,000 students trained in lifesaving skills | Press release | GlobeNewswire | — | — | |
| Hydro One Limited announces Melissa Sonberg as the Chair of the Board of Directors | Press release | Canada Newswire | — | — | |
| Members of the Power Workers' Union ratify collective agreement | Press release | Canada Newswire | — | — | |
| Hydro One and Coaches Association increase access to organized sport for Ontario youth | Press release | Canada Newswire | — | — | |
| Hydro One's 2024 Sustainability Report focuses on strategic and sustainable growth to deliver for Ontarians | Press release | Canada Newswire | — | — | |
| Hydro One Limited Declares Quarterly Common Share Dividend | Press release | Canada Newswire | — | — |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the H_TSE section they belong to.
Where else H_TSE is measured.
H_TSE earnings → · Analyst actions → · SEC filings →
Other Utilities names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| MGE Energy Inc. (MGEE) | 197 | -0.07% | 44% |
| COSAN (CZZ) | 196 | -0.07% | 47% |
| Ellomay Capital Ltd Ordinary Shares (Israel) (ELLO) | 193 | 0.00% | 44% |
| Consolidated Water Co. Ltd. - Ordinary Shares (CWCO) | 190 | +0.05% | 55% |
Same sector, same measurement: percent move vs. the price at the news timestamp, read at 30 minutes. Sample sizes differ, so the medians are comparable but the confidence behind them is not.
All Utilities names, measured the same way →
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How the numbers are made.
How is Hydro One Ltd's median reaction calculated?
Every labeled H_TSE news event is measured from its own timestamp: the last trade before the news is the base price, and the move is read at fixed horizons — 30 minutes of trading, then the close. The median across 195 events is what this page reports. Point-in-time, zero look-ahead: no event borrows information from a later one.
What counts as a positive reaction?
Any event whose price move is above zero at the horizon, relative to the last trade before the news timestamp. 52% of H_TSE's measured events are up at 30 minutes; the rest close the window flat or negative.
How often is this page updated?
The news table refreshes automatically as new events are labeled and priced. The reaction medians are re-pulled in batches from the dataset — the figures here are as of 2026-09-21.
Does H_TSE's past reaction predict its next one?
No. These are realized facts about past events, not forecasts. They describe a distribution — they say nothing certain about any future move.