Spring Valley Acquisition Corp. III - Class A Ordinary Shares (SVAC)
SVAC moved a median of -0.07% 30 minutes after news, and -0.22% by the close. How SVAC actually reacts to news — the realized, point-in-time move the market made, measured across 121 labeled events over the last three years with zero look-ahead.
SVAC’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 33% | 109 |
| 30-min | -0.07% | 35% | 113 |
| 60-min | -0.09% | 27% | 113 |
| to close | -0.22% | 26% | 112 |
| Middle 50% of SVAC reactions | -0.34% to +0.10% |
|---|---|
| Median reaction (30-min) | -0.07% |
| Measured reactions | 121 |
Half of all Spring Valley Acquisition Corp. III - Class A Ordinary Shares news events land between -0.34% and +0.10% 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 SVAC moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to SVAC's baseline. Nothing else.
Recent SVAC events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| General Fusion Achieves World-First 1 keV Electron Temperature Milestone on its Path to Commercial Fusion Power | Press release | GlobeNewswire | — | — | |
| General Fusion, UKAEA Announce Magnetized Target Fusion Milestone | Press release | GlobeNewswire | — | — | |
| General Fusion to Participate in Upcoming Investor Conferences | Press release | GlobeNewswire | — | — | |
| General Fusion Provides First Public Company Business Update | Press release | GlobeNewswire | — | — | |
| General Fusion to Host Business Update Conference Call on August 18, 2026 | Press release | GlobeNewswire | — | — | |
| General Fusion to Participate in Canaccord Genuity Growth Conference | Press release | GlobeNewswire | — | — | |
| General Fusion to Ring Nasdaq Opening Bell Today, July 17, 2026 | Press release | GlobeNewswire | — | — | |
| Form 8-K Spring Valley Acquisitio For: Jul 06 | SEC filing · Form 8-K | SEC EDGAR | +0.87% | -19.51% | |
| Spring Valley Acquisition Corp. III Shareholders Approve Business Combination with General Fusion | Press release | GlobeNewswire | +0.87% | -19.51% | |
| Form 8-K Spring Valley Acquisitio For: Jun 29 | SEC filing · Form 8-K | SEC EDGAR | -0.39% | -0.29% | |
| Fusion's "Twenty Years Away" Just Got Shorter: General Fusion Heats Plasma to 8.4 Million Degrees by Squeezing It | Press release | PR Newswire | +0.18% | -0.39% | |
| Form 8-K Spring Valley Acquisitio For: Jun 23 | SEC filing · Form 8-K | SEC EDGAR | +0.18% | -0.39% | |
| UPDATE - General Fusion Achieves Compressional Plasma Heating with LM26 Magnetized Target Fusion Machine | Press release | GlobeNewswire | -0.19% | -0.10% | |
| Form EFFECT Spring Valley Acquisitio | SEC filing · Form EFFECT | SEC EDGAR | +0.00% | -0.67% | |
| General Fusion’s Joint F-4 with Spring Valley Acquisition Corp. III in Connection with Proposed Business Combination Declared Effective by SEC | Press release | GlobeNewswire | +0.00% | -0.67% | |
| General Fusion Named World’s Top GreenTech Company of 2026 by TIME | Press release | GlobeNewswire | -0.19% | -0.29% | |
| Form 8-K Spring Valley Acquisitio For: Jun 03 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -1.15% | |
| Form F-4/A Spring Valley Acquisitio | SEC filing · Form F-4 | SEC EDGAR | -0.09% | +0.09% | |
| General Fusion to Participate in June Investor and Industry Conferences | Press release | GlobeNewswire | -0.45% | -0.75% | |
| General Fusion and General Atomics to Collaborate on Advanced Diagnostic Systems and Data for Key Milestones in LM26 Fusion Demonstration Program | Press release | GlobeNewswire | -0.08% | -0.47% | |
| General Fusion Names Joanna Cameron as General Counsel and Corporate Secretary | Press release | GlobeNewswire | +0.00% | -0.75% | |
| General Fusion Appoints Thomas Boehlert to its Board of Directors | Press release | GlobeNewswire | +0.00% | -0.19% | |
| Form 8-K Spring Valley Acquisitio For: May 12 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.00% | |
| Form 10-Q Spring Valley Acquisitio For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | — | +0.29% | |
| Form F-4/A Spring Valley Acquisitio | SEC filing · Form F-4 | SEC EDGAR | +0.00% | +0.29% | |
| General Fusion to Present at Major Tech Industry and Key Investor Events in May | Press release | GlobeNewswire | +0.10% | -0.29% | |
| U.S. Department of Energy–Funded Study Supports General Fusion’s Fuel Cycle Design | Press release | GlobeNewswire | -0.00% | +0.10% | |
| Form 8-K Spring Valley Acquisitio For: Apr 29 | SEC filing · Form 8-K | SEC EDGAR | +0.10% | +0.00% | |
| Form F-4/A Spring Valley Acquisitio | SEC filing · Form F-4 | SEC EDGAR | +0.48% | +0.97% | |
| General Fusion to Host Analyst Day on April 29 as Company Advances Toward Public Market Listing | Press release | GlobeNewswire | -0.04% | -0.77% | |
| Form 8-K Spring Valley Acquisitio For: Apr 15 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.19% | |
| General Fusion Appoints Wendy Kei to Its Board of Directors | Press release | GlobeNewswire | +0.19% | +1.84% | |
| General Fusion to Showcase Practical Path to Commercial Fusion Energy and Future Public Listing at Major Energy Conferences | Press release | GlobeNewswire | +0.00% | +0.00% | |
| Form 8-K Spring Valley Acquisitio For: Apr 06 | SEC filing · Form 8-K | SEC EDGAR | +0.10% | +0.00% | |
| Form F-4/A Spring Valley Acquisitio | SEC filing · Form F-4 | SEC EDGAR | -0.17% | -0.10% | |
| New Peer-Reviewed Publication Demonstrates Diagnostic Method for Measuring Target Temperatures in Large-Scale LM26 Fusion Machine | Press release | GlobeNewswire | +0.00% | -0.10% | |
| Form 10-K Spring Valley Acquisitio For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.00% | -0.39% | |
| Form F-4 Spring Valley Acquisitio | SEC filing · Form F-4 | SEC EDGAR | +0.00% | -0.38% | |
| General Fusion Marks Key Milestone in Becoming a Public Company, Announces Public Filing of Form F-4 in Connection with Proposed Business Combination | Press release | GlobeNewswire | +0.00% | -0.38% | |
| General Fusion to Highlight Commercialization Path and Capital Markets Strategy at Upcoming Global Fusion Industry and Investor Conferences | Press release | GlobeNewswire | -0.05% | — | |
| Ontario Power Generation Board Chair Wendy Kei Joins General Fusion as Strategic Advisor | Press release | GlobeNewswire | +0.00% | -0.28% | |
| Form 8-K Spring Valley Acquisitio For: Jan 21 | SEC filing · Form 8-K | SEC EDGAR | -2.26% | -4.26% | |
| Form 8-K Spring Valley Acquisitio For: Jan 22 | SEC filing · Form 8-K | SEC EDGAR | +1.37% | +4.93% | |
| General Fusion to Become First Publicly Traded Pure-Play Fusion Company Through Business Combination with Spring Valley Acquisition Corp. III | Press release | GlobeNewswire | +1.37% | +4.93% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the SVAC section they belong to.
Where else SVAC is measured.
SVAC earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is Spring Valley Acquisition Corp. III - Class A Ordinary Shares's median reaction calculated?
Every labeled SVAC 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 121 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. 35% of SVAC'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 SVAC'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.