NorthWestern Energy Group, Inc. (NWE)
NWE moved a median of 0.00% 30 minutes after news, and -0.03% by the close. How NWE actually reacts to news — the realized, point-in-time move the market made, measured across 323 labeled events over the last three years with zero look-ahead.
NWE’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | +0.01% | 50% | 319 |
| 30-min | 0.00% | 46% | 323 |
| 60-min | +0.04% | 51% | 323 |
| to close | -0.03% | 46% | 318 |
| Middle 50% of NWE reactions | -0.27% to +0.49% |
|---|---|
| Median reaction (30-min) | 0.00% |
| Measured reactions | 323 |
Half of all NorthWestern Energy Group, Inc. news events land between -0.27% and +0.49% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How NWE reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 25 | -0.14% | 44% | -0.25% |
| Analyst downgrades | 18 | -0.28% | 39% | -0.10% |
| Rating reiterations | 34 | -0.16% | 44% | -0.32% |
| Price-target raises | 17 | -0.04% | 47% | 0.00% |
Last 3 years, pulled 2026-09-21. Reaction = percent move vs. the price at the news timestamp. Counts and medians only. The same measurement runs across every name in the dataset. 2 further classes were observed with fewer than 10 measured events and are not published. See how NWE ranks against every other measured name →
That’s how NWE usually reacts — get an email when it moves on news →Email me when NWE moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to NWE's baseline. Nothing else.
Recent NWE events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| NorthWestern Energy to Host Third Quarter 2026 Financial Results Webinar | Press release | Business Wire | -0.09% | -0.61% | |
| Form 8-K NorthWestern Energy Grou For: Sep 09 | SEC filing · Form 8-K | SEC EDGAR | -0.13% | -1.41% | |
| Form 10-Q NorthWestern Energy Grou For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +1.40% | -0.43% | |
| Form 8-K NorthWestern Energy Grou For: Jul 29 | SEC filing · Form 8-K | SEC EDGAR | +1.40% | -0.43% | |
| NorthWestern Energy Reports Second Quarter 2026 Financial Results | Press release | Business Wire | +1.40% | -0.43% | |
| NorthWestern Energy to Host Second Quarter 2026 Financial Results Webinar | Press release | Business Wire | +0.88% | -0.18% | |
| Form 8-K NorthWestern Energy Grou For: Jun 15 | SEC filing · Form 8-K | SEC EDGAR | +0.22% | -0.55% | |
| Form 8-K NorthWestern Energy Grou For: Jun 02 | SEC filing · Form 8-K | SEC EDGAR | +1.54% | +2.81% | |
| Form 8-K NorthWestern Energy Grou For: May 27 | SEC filing · Form 8-K | SEC EDGAR | +1.54% | +2.81% | |
| Form 8-K NorthWestern Energy Grou For: May 27 | SEC filing · Form 8-K | SEC EDGAR | +0.65% | +0.70% | |
| Form 8-K NorthWestern Energy Grou For: May 18 | SEC filing · Form 8-K | SEC EDGAR | -0.23% | -0.26% | |
| Form 8-K NorthWestern Energy Grou For: Apr 30 | SEC filing · Form 8-K | SEC EDGAR | +0.07% | -1.22% | |
| Form 10-Q NorthWestern Energy Grou For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +1.49% | +1.53% | |
| Form 8-K NorthWestern Energy Grou For: Apr 29 | SEC filing · Form 8-K | SEC EDGAR | -0.06% | +0.50% | |
| NorthWestern Energy Reports First Quarter 2026 Financial Results | Press release | Business Wire | +1.49% | +1.53% | |
| NorthWestern Energy to Host First Quarter 2026 Financial Results Webinar | Press release | Business Wire | +0.00% | +2.32% | |
| Form 8-K NorthWestern Energy Grou For: Apr 02 | SEC filing · Form 8-K | SEC EDGAR | +0.31% | +1.02% | |
| NorthWestern Energy Submits Large New Load Tariff Proposal to Strengthen Customer Safeguards and Support Montana’s Energy Future and Economic Growth | Press release | Business Wire | -1.03% | -0.66% | |
| Form ANNLRPT NorthWestern Energy Grou For: Dec 31 | SEC filing · Form ANNLRPT | SEC EDGAR | +0.43% | +2.33% | |
| Form DEF 14A NorthWestern Energy Grou For: Apr 30 | SEC filing · Form DEF | SEC EDGAR | +0.43% | +2.33% | |
| Form DEFA14A NorthWestern Energy Grou | SEC filing · Form DEFA14A | SEC EDGAR | +0.43% | +2.33% | |
| Form 8-K NorthWestern Energy Grou For: Feb 11 | SEC filing · Form 8-K | SEC EDGAR | +0.28% | -0.75% | |
| Form 10-K NorthWestern Energy Grou For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +1.80% | +0.88% | |
| Form 8-K NorthWestern Energy Grou For: Feb 11 | SEC filing · Form 8-K | SEC EDGAR | -0.17% | +0.06% | |
| NorthWestern Energy Reports 2025 Financial Results | Press release | Business Wire | +1.80% | +0.88% | |
| Form DEFM14A NorthWestern Energy Grou | SEC filing · Form DEFM14A | SEC EDGAR | -0.69% | -1.10% | |
| NorthWestern Energy to Host Year-End 2025 Financial Results Webinar | Press release | Business Wire | +0.08% | +0.56% | |
| Form 8-K NorthWestern Energy Grou For: Dec 09 | SEC filing · Form 8-K | SEC EDGAR | +0.87% | +0.68% | |
| Form 8-K NorthWestern Energy Grou For: Nov 10 | SEC filing · Form 8-K | SEC EDGAR | +0.71% | +2.42% | |
| Form 8-K NorthWestern Energy Grou For: Oct 27 | SEC filing · Form 8-K | SEC EDGAR | -1.25% | +0.99% | |
| Form 10-Q NorthWestern Energy Grou For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +1.72% | +0.40% | |
| Form 8-K NorthWestern Energy Grou For: Oct 29 | SEC filing · Form 8-K | SEC EDGAR | -0.42% | -1.16% | |
| NorthWestern Energy Reports Third Quarter 2025 Financial Results | Press release | Business Wire | +1.72% | +0.40% | |
| NorthWestern to Host Third Quarter 2025 Financial Results Webinar | Press release | Business Wire | -0.71% | -0.76% | |
| Form 8-K NorthWestern Energy Grou For: Sep 29 | SEC filing · Form 8-K | SEC EDGAR | +0.77% | +1.27% | |
| Form 8-K NorthWestern Energy Grou For: Sep 03 | SEC filing · Form 8-K | SEC EDGAR | +0.26% | +0.32% | |
| ALERT: Rowley Law PLLC is Investigating Proposed Acquisition of NorthWestern Energy | Press release | PR Newswire | +0.85% | -1.78% | |
| Black Hills Corp. and NorthWestern Energy to Combine in All-Stock Merger to Create a Premier Regional Regulated Electric and Natural Gas Utility Company | Press release | GlobeNewswire | +2.56% | — | |
| Form 8-K NorthWestern Energy Grou For: Aug 18 | SEC filing · Form 8-K | SEC EDGAR | +0.85% | -1.78% | |
| Form 8-K NorthWestern Energy Grou For: Aug 19 | SEC filing · Form 8-K | SEC EDGAR | +2.56% | — | |
| NWE Stock Alert: Halper Sadeh LLC Is Investigating Whether the Sale of NorthWestern Energy Group, Inc. Is Fair to Shareholders | Press release | Business Wire | +2.56% | — | |
| NorthWestern Energy to Seek New Capacity Resources in South Dakota, Explore Expedited Electric Grid Interconnection Process | Press release | Business Wire | -0.04% | -0.94% | |
| Form 10-Q NorthWestern Energy Grou For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +1.02% | +2.79% | |
| Form 8-K NorthWestern Energy Grou For: Jul 30 | SEC filing · Form 8-K | SEC EDGAR | +1.79% | +2.79% | |
| NorthWestern Energy Signs Letter of Intent to Serve Quantica Infrastructure’s Montana Data Center Development | Press release | Business Wire | +1.02% | +2.79% | |
| NorthWestern Reports Second Quarter 2025 Financial Results | Press release | Business Wire | +1.02% | +2.79% | |
| NorthWestern to Host Second Quarter 2025 Financial Results Webinar | Press release | Business Wire | +0.08% | +1.17% | |
| NorthWestern Energy Welcoming Energy West Employees and Customers | Press release | Business Wire | -0.14% | +1.64% | |
| Form 8-K NorthWestern Energy Grou For: Jun 05 | SEC filing · Form 8-K | SEC EDGAR | -0.51% | -0.15% | |
| Form 8-K NorthWestern Energy Grou For: May 28 | SEC filing · Form 8-K | SEC EDGAR | -0.03% | -1.91% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the NWE section they belong to.
Where else NWE is measured.
NWE earnings → · Analyst actions → · SEC filings →
Other Utilities names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| NiSource Inc (NI) | 335 | +0.07% | 56% |
| Northwest Natural Holding Company (NWN) | 325 | +0.02% | 51% |
| The AES Corporation (AES) | 316 | -0.04% | 45% |
| Ormat Technologies, Inc. (ORA) | 316 | -0.05% | 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 Utilities names, measured the same way →
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Every name we’ve measured, in one place.
How the numbers are made.
How is NorthWestern Energy Group, Inc.'s median reaction calculated?
Every labeled NWE 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 323 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. 46% of NWE'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 NWE'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.