Hamilton Insurance Group, Ltd. Class B Common Shares (HG)
HG moved a median of +0.02% 30 minutes after news, and -0.15% by the close. How HG actually reacts to news — the realized, point-in-time move the market made, measured across 205 labeled events over the last three years with zero look-ahead.
HG’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 41% | 204 |
| 30-min | +0.02% | 51% | 205 |
| 60-min | +0.20% | 56% | 205 |
| to close | -0.15% | 46% | 196 |
| Middle 50% of HG reactions | -0.48% to +0.67% |
|---|---|
| Median reaction (30-min) | +0.02% |
| Measured reactions | 205 |
Half of all Hamilton Insurance Group, Ltd. Class B Common Shares news events land between -0.48% and +0.67% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How HG reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 11 | +0.10% | 55% | -0.22% |
| Analyst downgrades | 12 | +0.09% | 50% | -0.48% |
| Coverage initiations | 12 | +0.59% | 92% | +2.74% |
| Rating reiterations | 71 | -0.04% | 49% | -0.23% |
| Price-target raises | 34 | +0.09% | 53% | -0.22% |
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. 1 further class was observed with fewer than 10 measured events and is not published. See how HG ranks against every other measured name →
That’s how HG usually reacts — get an email when it moves on news →Email me when HG moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to HG's baseline. Nothing else.
Recent HG events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Hamilton to Report Third Quarter 2026 Financial Results on October 29, 2026 | Press release | Business Wire | -0.87% | +0.59% | |
| Form 10-Q Hamilton Insurance Group For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.11% | — | |
| Form 8-K Hamilton Insurance Group For: Aug 06 | SEC filing · Form 8-K | SEC EDGAR | -1.50% | +0.00% | |
| Hamilton Reports 2026 Second Quarter Results | Press release | Business Wire | -1.50% | +0.00% | |
| Hamilton to Report Second Quarter 2026 Financial Results on August 6, 2026 | Press release | Business Wire | -0.50% | +0.73% | |
| Hamilton Announces Leadership Appointments to Advance Expansion of Wholesale-Focused Hamilton Select | Press release | Business Wire | -1.03% | +1.38% | |
| Hamilton Launches Private Clients Insurance at Hamilton Global Specialty with Appointment of Jamie Keaney | Press release | Business Wire | +0.33% | +0.88% | |
| Chris Stella Appointed Chief Claims Officer of Hamilton Select | Press release | Business Wire | +0.31% | -0.31% | |
| AM Best Upgrades Financial Strength Rating to “A” (Excellent) for Hamilton Select | Press release | Business Wire | +0.15% | -0.92% | |
| Form 10-Q Hamilton Insurance Group For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.40% | +1.46% | |
| Form 8-K Hamilton Insurance Group For: May 06 | SEC filing · Form 8-K | SEC EDGAR | +0.40% | +1.46% | |
| Peter W. Wilson Joins Hamilton Board of Directors | Press release | Business Wire | +0.40% | +1.46% | |
| Form 8-K Hamilton Insurance Group For: Apr 30 | SEC filing · Form 8-K | SEC EDGAR | -1.07% | -3.63% | |
| Hamilton Reports 2026 First Quarter Results | Press release | Business Wire | -1.07% | -3.63% | |
| Hamilton Establishes Casualty Reinsurance Sidecar | Press release | Business Wire | +0.39% | +1.47% | |
| Form 8-K Hamilton Insurance Group For: Apr 02 | SEC filing · Form 8-K | SEC EDGAR | +0.05% | +1.76% | |
| Form ARS Hamilton Insurance Group For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +0.59% | -1.16% | |
| Form DEF 14A Hamilton Insurance Group For: Dec 31 | SEC filing · Form DEF | SEC EDGAR | +0.59% | -1.16% | |
| Form DEFA14A Hamilton Insurance Group | SEC filing · Form DEFA14A | SEC EDGAR | +0.59% | -1.16% | |
| Hamilton to Report First Quarter 2026 Financial Results on April 30, 2026 | Press release | Business Wire | -0.77% | +0.46% | |
| Hamilton Announces Underwriting Leadership Appointments at Hamilton Global Specialty | Press release | Business Wire | -0.72% | +0.03% | |
| Form 10-K Hamilton Insurance Group For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +1.15% | +1.76% | |
| Form 8-K Hamilton Insurance Group For: Feb 20 | SEC filing · Form 8-K | SEC EDGAR | +1.15% | +1.76% | |
| Marc Roston Appointed to Hamilton Board of Directors | Press release | Business Wire | +1.15% | +1.76% | |
| Form 8-K Hamilton Insurance Group For: Feb 19 | SEC filing · Form 8-K | SEC EDGAR | -2.82% | -2.97% | |
| Hamilton Reports $577 million of Net Income, 24% Growth in Book Value Per Share, and Declares Special Dividend | Press release | Business Wire | -2.82% | -2.97% | |
| Hamilton Promotes Moussa Thiam to Group Head of Compliance | Press release | Business Wire | -0.86% | +0.11% | |
| Hamilton Appoints Michelle Li as Chief Financial Officer of Hamilton Global Specialty | Press release | Business Wire | +0.07% | +1.19% | |
| Hamilton to Report Fourth Quarter and Full-Year 2025 Financial Results on February 19, 2026 | Press release | Business Wire | -0.42% | -0.83% | |
| Susan Steinhoff Appointed Chief Underwriting Officer at Hamilton Re | Press release | Business Wire | -1.14% | -3.13% | |
| Dwayne Hunt Appointed SVP, Head of Property Insurance at Hamilton Re | Press release | Business Wire | +0.48% | -1.88% | |
| Form 10-Q Hamilton Insurance Group For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.34% | -1.72% | |
| Form 8-K Hamilton Insurance Group For: Nov 04 | SEC filing · Form 8-K | SEC EDGAR | +1.60% | +4.04% | |
| Hamilton Announces Common Share Repurchase Authorization | Press release | Business Wire | +1.60% | +4.04% | |
| Hamilton Reports 2025 Third Quarter Results | Press release | Business Wire | +1.60% | +4.04% | |
| Hamilton Announces Board Chair Appointments at Hamilton Global Specialty | Press release | Business Wire | +0.57% | -0.04% | |
| Form 8-K Hamilton Insurance Group For: Oct 20 | SEC filing · Form 8-K | SEC EDGAR | -0.64% | -1.40% | |
| Hamilton Appoints Mike Mulray as Chief Underwriting Officer of Hamilton Select | Press release | Business Wire | +0.04% | +1.82% | |
| Hamilton to Report Third Quarter 2025 Financial Results on November 4, 2025 | Press release | Business Wire | +0.00% | -2.09% | |
| Form 10-Q Hamilton Insurance Group For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.75% | +0.31% | |
| Form 8-K Hamilton Insurance Group For: Aug 06 | SEC filing · Form 8-K | SEC EDGAR | +1.88% | -0.27% | |
| Hamilton Reports 2025 Second Quarter Results | Press release | Business Wire | +1.88% | -0.27% | |
| Russ Buckley Appointed Group Chief Risk Officer at Hamilton | Press release | Business Wire | +1.88% | -0.27% | |
| Form 8-K Hamilton Insurance Group For: Jul 17 | SEC filing · Form 8-K | SEC EDGAR | +0.86% | +1.24% | |
| Raymond Karrenbauer Appointed Group Chief Information Officer at Hamilton | Press release | Business Wire | +0.86% | +1.24% | |
| Hamilton to Report Second Quarter 2025 Financial Results on August 6, 2025 | Press release | Business Wire | +1.09% | +2.46% | |
| Form 8-K Hamilton Insurance Group For: Jun 17 | SEC filing · Form 8-K | SEC EDGAR | +0.84% | -0.19% | |
| Hamilton Announces Executive Appointments | Press release | Business Wire | +0.84% | -0.19% | |
| Form 8-K Hamilton Insurance Group For: Jun 10 | SEC filing · Form 8-K | SEC EDGAR | +0.07% | +0.05% | |
| Form 8-K Hamilton Insurance Group For: May 19 | SEC filing · Form 8-K | SEC EDGAR | -0.14% | +0.57% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the HG section they belong to.
Where else HG is measured.
HG earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is Hamilton Insurance Group, Ltd. Class B Common Shares's median reaction calculated?
Every labeled HG 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 205 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. 51% of HG'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 HG'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.