Altagas Ltd (ALA_TSE)
ALA_TSE moved a median of +0.07% 30 minutes after news, and +0.15% by the close. How ALA_TSE actually reacts to news — the realized, point-in-time move the market made, measured across 72 labeled events over the last three years with zero look-ahead.
ALA_TSE’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | +0.04% | 52% | 29 |
| 30-min | +0.07% | 55% | 29 |
| 60-min | +0.04% | 55% | 29 |
| to close | +0.15% | 55% | 29 |
| Middle 50% of ALA_TSE reactions | -0.26% to +0.40% |
|---|---|
| Median reaction (30-min) | +0.07% |
| Measured reactions | 72 |
Half of all Altagas Ltd news events land between -0.26% and +0.40% 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 ALA_TSE moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to ALA_TSE's baseline. Nothing else.
Recent ALA_TSE events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| ALTAGAS TO ISSUE THIRD QUARTER 2026 RESULTS | Press release | Canada Newswire | — | — | |
| ALTAGAS ANNOUNCES CLOSING OF US$750 MILLION SENIOR NOTE OFFERING | Press release | Canada Newswire | — | — | |
| ALTAGAS ANNOUNCES US$750 MILLION SENIOR NOTE OFFERING | Press release | Canada Newswire | — | — | |
| ALTAGAS REPORTS RECORD SECOND QUARTER RESULTS | Press release | Canada Newswire | — | — | |
| ALTAGAS TO ISSUE SECOND QUARTER 2026 RESULTS | Press release | Canada Newswire | — | — | |
| ALTAGAS ANNOUNCES UTILITIES LEADERSHIP TRANSITION AND CONTINUED EXECUTION OF LONG-TERM STRATEGY | Press release | Canada Newswire | — | — | |
| ALTAGAS ANNOUNCES ELECTION OF DIRECTORS | Press release | Canada Newswire | — | — | |
| ALTAGAS REPORTS RECORD FIRST QUARTER RESULTS | Press release | Canada Newswire | — | — | |
| ALTAGAS TO ISSUE FIRST QUARTER 2026 RESULTS AND HOLD ANNUAL MEETING OF SHAREHOLDERS | Press release | Canada Newswire | — | — | |
| ALTAGAS APPOINTS DEREK EVANS AS BOARD CHAIR SUCCESSOR | Press release | Canada Newswire | — | — | |
| AltaGas Reports Strong Fourth Quarter and Full Year 2025 Results | Press release | Canada Newswire | — | — | |
| ALTAGAS TO ISSUE FOURTH QUARTER 2025 RESULTS | Press release | Canada Newswire | — | — | |
| ALTAGAS ANNOUNCES CFO TRANSITION AND MIDSTREAM UPDATES | Press release | Canada Newswire | — | — | |
| ALTAGAS REACHES NEW LONG-TERM RIPET LABOUR AGREEMENT | Press release | Canada Newswire | — | — | |
| ALTAGAS ANNOUNCES A SIX PERCENT DIVIDEND INCREASE, 2026 GUIDANCE AND UPDATED STRATEGIC PRIORITIES | Press release | Canada Newswire | — | — | |
| ALTAGAS ACTIVATES CONTINGENCY PLAN TO MAINTAIN UNINTERRUPTED RIPET EXPORT OPERATIONS AMID LABOUR DISRUPTION | Press release | Canada Newswire | — | — | |
| ALTAGAS CLOSES $500 MILLION MEDIUM TERM NOTE OFFERING | Press release | Canada Newswire | — | — | |
| ALTAGAS ANNOUNCES CLOSING OF $460 MILLION EQUITY FINANCING WITH POSITIVE CREDIT RATING UPDATES | Press release | Canada Newswire | — | — | |
| ALTAGAS ANNOUNCES $500 MILLION MEDIUM TERM NOTE OFFERING | Press release | Canada Newswire | — | — | |
| AltaGas to Retain MVP as Long-Term Investment; Announces $400 Million Bought Deal Financing | Press release | GlobeNewswire | — | — | |
| ALTAGAS REPORTS STRONG THIRD QUARTER 2025 RESULTS | Press release | Canada Newswire | — | — | |
| Mountain Valley Pipeline, LLC Files Formal Application Requesting FERC Authorization to Construct MVP Boost | Press release | PR Newswire | — | — | |
| ALTAGAS TO ISSUE THIRD QUARTER 2025 RESULTS | Press release | Canada Newswire | — | — | |
| ALTAGAS APPOINTS BILL BULLOCK TO ITS BOARD OF DIRECTORS | Press release | Canada Newswire | — | — | |
| ALTAGAS ANNOUNCES CLOSING OF HYBRID NOTE OFFERING | Press release | Canada Newswire | — | — | |
| ALTAGAS ANNOUNCES $200 MILLION HYBRID NOTE OFFERING | Press release | Canada Newswire | — | — | |
| ALTAGAS ANNOUNCES INTENTION TO REDEEM ALL OUTSTANDING SERIES A AND SERIES B PREFERRED SHARES | Press release | Canada Newswire | — | — | |
| ALTAGAS REPORTS STRONG SECOND QUARTER 2025 RESULTS | Press release | Canada Newswire | — | — | |
| BASF AND ALTAGAS SIGN LONG-TERM BUTANE SUPPLY AGREEMENT | Press release | Canada Newswire | — | — | |
| ALTAGAS TO ISSUE SECOND QUARTER 2025 RESULTS | Press release | Canada Newswire | — | — | |
| ALTAGAS ANNOUNCES LONG-TERM GLOBAL EXPORTS TOLLING AGREEMENT | Press release | Canada Newswire | — | — | |
| ALTAGAS ANNOUNCES ELECTION OF DIRECTORS | Press release | Canada Newswire | — | — | |
| ALTAGAS REPORTS STRONG FIRST QUARTER 2025 RESULTS | Press release | Canada Newswire | — | — | |
| ALTAGAS TO ISSUE FIRST QUARTER 2025 RESULTS AND HOLD ANNUAL AND SPECIAL MEETING OF SHAREHOLDERS | Press release | Canada Newswire | — | — | |
| ALTAGAS REPORTS FOURTH QUARTER AND FULL YEAR 2024 RESULTS | Press release | Canada Newswire | — | — | |
| ALTAGAS AND KEYERA ANNOUNCE AGREEMENTS THAT LEVERAGE EACH COMPANY'S INFRASTRUCTURE TO DRIVE COMPETITIVE INDUSTRY SOLUTIONS | Press release | Canada Newswire | — | — | |
| ALTAGAS TO ISSUE FOURTH QUARTER 2024 RESULTS | Press release | Canada Newswire | — | — | |
| ALTAGAS APPOINTS DEREK EVANS TO ITS BOARD OF DIRECTORS | Press release | Canada Newswire | — | — | |
| AltaGas Provides Year-end Update on Global Exports Tolling and Commercial Contracting | Press release | Canada Newswire | — | — | |
| ALTAGAS ANNOUNCES 2025 GUIDANCE, SIX PERCENT DIVIDEND INCREASE, AND CONTINUED PROGRESS ON STRATEGIC PRIORITIES | Press release | Canada Newswire | — | — | |
| ALTAGAS ANNOUNCES EXPIRATION OF CASH TENDER OFFERS FOR CERTAIN DEBT SECURITIES | Press release | Canada Newswire | — | — | |
| ALTAGAS ANNOUNCES PRICING OF CASH TENDER OFFERS FOR CERTAIN DEBT SECURITIES | Press release | Canada Newswire | — | — | |
| ALTAGAS ANNOUNCES CASH TENDER OFFERS FOR CERTAIN DEBT SECURITIES | Press release | Canada Newswire | — | — | |
| ALTAGAS REPORTS STRONG THIRD QUARTER 2024 RESULTS | Press release | Canada Newswire | — | — | |
| ALTAGAS TO ISSUE THIRD QUARTER 2024 RESULTS | Press release | Canada Newswire | — | — | |
| ALTAGAS ANNOUNCES CONVERSION OF SERIES H SHARES | Press release | Canada Newswire | -0.60% | +0.45% | |
| ALTAGAS ANNOUNCES CLOSING OF US$900 MILLION HYBRID NOTE OFFERING | Press release | Canada Newswire | +0.33% | -1.48% | |
| ALTAGAS ANNOUNCES US$900 MILLION HYBRID SUBORDINATED NOTE OFFERING AND RESULTS OF SERIES G AND H PREFERRED SHARE CONVERSIONS | Press release | Canada Newswire | -0.26% | -0.11% | |
| ALTAGAS PROVIDES FINAL PRICING AND DIVIDEND RESET RATES ON SERIES G AND SERIES H PREFERRED SHARES | Press release | Canada Newswire | +0.06% | +0.79% | |
| ALTAGAS PROVIDES NOTICE OF SERIES G AND SERIES H PREFERRED SHARES CONVERSION RIGHTS AND DIVIDEND RATES | Press release | Canada Newswire | +0.32% | -0.47% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the ALA_TSE section they belong to.
Where else ALA_TSE is measured.
ALA_TSE earnings → · Analyst actions → · SEC filings →
Other Energy names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| ENEOS HOLDINGS INC U/ADR (JXHLY) | 75 | 0.00% | 16% |
| Gibson Energy Inc (GEI_TSE) | 74 | 0.00% | 46% |
| Crescent Point Energy Corporation Ordinary Shares (Canada) (CPG) | 72 | +0.21% | 58% |
| Canadian Natural Resources Limited (CNQ) | 70 | -0.06% | 46% |
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 Energy names, measured the same way →
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Every name we’ve measured, in one place.
How the numbers are made.
How is Altagas Ltd's median reaction calculated?
Every labeled ALA_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 72 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. 55% of ALA_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 ALA_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.