James River Group Holdings, Inc. (JRVR)
JRVR moved a median of -0.09% 30 minutes after news, and 0.00% by the close. How JRVR actually reacts to news — the realized, point-in-time move the market made, measured across 756 labeled events over the last three years with zero look-ahead.
JRVR’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 42% | 744 |
| 30-min | -0.09% | 47% | 752 |
| 60-min | -0.16% | 46% | 752 |
| to close | 0.00% | 47% | 752 |
| Middle 50% of JRVR reactions | -1.27% to +0.81% |
|---|---|
| Median reaction (30-min) | -0.09% |
| Measured reactions | 756 |
Half of all James River Group Holdings, Inc. news events land between -1.27% and +0.81% at 30 minutes.
Reaction stats as of 2026-08-31. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How JRVR reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst downgrades | 30 | -1.45% | 23% | -3.48% |
| Rating reiterations | 26 | +0.22% | 62% | +0.63% |
| Price-target cuts | 15 | +0.21% | 60% | +0.41% |
Last 3 years, pulled 2026-08-31. 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 JRVR ranks against every other measured name →
That’s how JRVR usually reacts — get an email when it moves on news →Email me when JRVR moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to JRVR's baseline. Nothing else.
Recent JRVR events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 8-K James River Group Holdin For: Aug 31 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.48% | |
| Form 8-K James River Group Holdin For: Aug 20 | SEC filing · Form 8-K | SEC EDGAR | +0.99% | +1.99% | |
| James River to Hold Its Second Quarter Earnings Conference Call on Tuesday, August 11, 2026 | Press release | GlobeNewswire | +0.55% | +0.66% | |
| Form 8-K James River Group Holdin For: Jun 13 | SEC filing · Form 8-K | SEC EDGAR | -0.49% | -2.95% | |
| Form 8-K James River Group Holdin For: Jun 02 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.25% | |
| James River Announces Director Appointment | Press release | GlobeNewswire | +0.00% | +0.25% | |
| Form 8-K James River Group Holdin For: May 12 | SEC filing · Form 8-K | SEC EDGAR | -0.72% | -1.44% | |
| Form 10-Q James River Group Holdin For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -0.85% | -4.35% | |
| Form 8-K James River Group Holdin For: May 04 | SEC filing · Form 8-K | SEC EDGAR | -4.66% | -9.03% | |
| James River Announces First Quarter 2026 Results | Press release | GlobeNewswire | -4.66% | -9.03% | |
| Form 10-K/A James River Group Holdin For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.16% | -0.64% | |
| Form 8-K James River Group Holdin For: Apr 08 | SEC filing · Form 8-K | SEC EDGAR | -0.16% | +1.27% | |
| James River to Hold Its First Quarter Earnings Conference Call on Tuesday, May 5, 2026 | Press release | GlobeNewswire | -0.24% | +0.16% | |
| Form 8-K James River Group Holdin For: Mar 27 | SEC filing · Form 8-K | SEC EDGAR | +0.16% | +1.46% | |
| Form 8-K James River Group Holdin For: Mar 02 | SEC filing · Form 8-K | SEC EDGAR | -0.79% | +0.63% | |
| James River Recruits Industry Veteran Kelly Hadiaris to Lead Excess Casualty | Press release | GlobeNewswire | -0.81% | -5.57% | |
| Form 10-K James River Group Holdin For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | -0.89% | +3.43% | |
| Form 8-K James River Group Holdin For: Mar 02 | SEC filing · Form 8-K | SEC EDGAR | +1.39% | +2.93% | |
| James River Announces Fourth Quarter 2025 Results | Press release | GlobeNewswire | +1.39% | +2.93% | |
| James River to Hold Its Fourth Quarter Earnings Conference Call on Tuesday, March 3, 2026 | Press release | GlobeNewswire | -0.29% | -0.14% | |
| Form 8-K James River Group Holdin For: Dec 02 | SEC filing · Form 8-K | SEC EDGAR | -0.35% | +1.71% | |
| Form EFFECT James River Group Holdin | SEC filing · Form EFFECT | SEC EDGAR | +0.36% | +0.00% | |
| Form 8-K James River Group Holdin For: Nov 12 | SEC filing · Form 8-K | SEC EDGAR | +0.22% | — | |
| Form POS AM James River Group Holdin | SEC filing · Form POS | SEC EDGAR | +0.00% | +4.49% | |
| Form S-8 POS James River Group Holdin | SEC filing · Form S-8 | SEC EDGAR | +0.00% | +4.49% | |
| Form 8-K James River Group Holdin For: Nov 07 | SEC filing · Form 8-K | SEC EDGAR | +0.72% | -3.07% | |
| Form 10-Q James River Group Holdin For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.67% | -6.72% | |
| Form S-8 James River Group Holdin | SEC filing · Form S-8 | SEC EDGAR | +0.67% | -6.72% | |
| Form 8-K James River Group Holdin For: Nov 03 | SEC filing · Form 8-K | SEC EDGAR | +3.14% | +6.82% | |
| James River Announces Third Quarter 2025 Results | Press release | GlobeNewswire | +3.14% | +6.82% | |
| Form 8-K James River Group Holdin For: Oct 23 | SEC filing · Form 8-K | SEC EDGAR | -0.28% | +0.93% | |
| James River to Hold Its Third Quarter Earnings Conference Call on Tuesday, November 4, 2025 | Press release | GlobeNewswire | -1.74% | +5.79% | |
| James River Recruits Georgia Collier and Matt Sinosky, Completing E&S Leadership Reorganization | Press release | GlobeNewswire | +0.36% | -2.68% | |
| Form ARS James River Group Holdin For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | -0.67% | -2.31% | |
| Form DEF 14A James River Group Holdin For: Oct 23 | SEC filing · Form DEF | SEC EDGAR | -0.67% | -2.31% | |
| Form 8-K James River Group Holdin For: Aug 26 | SEC filing · Form 8-K | SEC EDGAR | -2.33% | -2.87% | |
| Form EFFECT James River Group Holdin | SEC filing · Form EFFECT | SEC EDGAR | +1.06% | +4.25% | |
| Form S-3 James River Group Holdin | SEC filing · Form S-3 | SEC EDGAR | +1.49% | -0.52% | |
| Form S-4/A James River Group Holdin | SEC filing · Form S-4 | SEC EDGAR | +1.49% | -0.52% | |
| Form 8-K James River Group Holdin For: Aug 11 | SEC filing · Form 8-K | SEC EDGAR | -1.36% | -2.89% | |
| Form 8-K James River Group Holdin For: Aug 12 | SEC filing · Form 8-K | SEC EDGAR | +1.04% | +4.35% | |
| Form 10-Q James River Group Holdin For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +3.40% | +3.74% | |
| Form S-4 James River Group Holdin | SEC filing · Form S-4 | SEC EDGAR | +3.40% | +3.74% | |
| Form 8-K James River Group Holdin For: Aug 04 | SEC filing · Form 8-K | SEC EDGAR | -2.38% | -4.93% | |
| James River Announces Second Quarter 2025 Results | Press release | GlobeNewswire | -2.38% | -4.93% | |
| Form 8-K James River Group Holdin For: Jul 21 | SEC filing · Form 8-K | SEC EDGAR | -0.44% | -0.17% | |
| James River Announces Director Appointment | Press release | GlobeNewswire | -0.44% | -0.17% | |
| Form 8-K James River Group Holdin For: Jul 17 | SEC filing · Form 8-K | SEC EDGAR | -0.47% | +1.24% | |
| James River Announces Executive Appointments; Second Quarter Earnings Conference Call on Tuesday, August 5, 2025 | Press release | GlobeNewswire | +0.37% | +2.21% | |
| Form 8-K James River Group Holdin For: Jun 12 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +1.52% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the JRVR section they belong to.
Where else JRVR is measured.
JRVR earnings → · Analyst actions → · SEC filings →
Other Financial Services names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| KeyCorp (KEY) | 762 | +0.02% | 50% |
| MetLife, Inc. (MET) | 759 | +0.14% | 57% |
| Triple-S Management Corporation (GTS) | 752 | +0.12% | 58% |
| PNC Financial Services Group, Inc. (The) (PNC) | 749 | +0.01% | 53% |
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 Financial Services names, measured the same way →
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Every name we’ve measured, in one place.
How the numbers are made.
How is James River Group Holdings, Inc.'s median reaction calculated?
Every labeled JRVR 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 756 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. 47% of JRVR'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 2026-08-31.
Does JRVR'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.