JFB Construction Holdings - Class A (JFB)
JFB moved a median of -0.41% 30 minutes after news, and -1.27% by the close. How JFB actually reacts to news — the realized, point-in-time move the market made, measured across 165 labeled events over the last three years with zero look-ahead.
JFB’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 46% | 143 |
| 30-min | -0.41% | 41% | 155 |
| 60-min | -0.77% | 40% | 159 |
| to close | -1.27% | 39% | 161 |
| Middle 50% of JFB reactions | -2.59% to +0.99% |
|---|---|
| Median reaction (30-min) | -0.41% |
| Measured reactions | 165 |
Half of all JFB Construction Holdings - Class A news events land between -2.59% and +0.99% 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 JFB moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to JFB's baseline. Nothing else.
Recent JFB events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 15-12G JFB Construction Holding | SEC filing · Form 15-12G | SEC EDGAR | — | — | |
| XTEND Confirms $60 Million in Cash Received as Merger with JFB Construction Holdings Advances Towards Closing | Press release | GlobeNewswire | +3.22% | -0.50% | |
| XTEND Reality Expansion Ltd. and JFB Construction Holdings Complete Business Combination, Raising $110 Million in Total Capital | Press release | GlobeNewswire | — | — | |
| XTEND Expands XOS-Powered Robotics Ecosystem into Ground Domain with AtlasROVER | Press release | GlobeNewswire | +0.11% | +2.98% | |
| XTEND and JFB Construction Holdings Business Combination Expected to Close This Week | Press release | GlobeNewswire | +0.11% | +2.98% | |
| XTEND Delivers Hundreds of M6F Tactical ISR Systems to Asia-Pacific Defense Customer | Press release | GlobeNewswire | +0.63% | +0.21% | |
| XTEND’s U.S.-Made X-Strike Lethality Package Accepted into DOW’s Drone Dominance Program | Press release | GlobeNewswire | +0.00% | +3.95% | |
| XTEND Secures Multi-Year Contract Valued at Up to $15 Million with European NATO Member Ministry of Defense as Allied Militaries Shift Away from Chinese-Made Drones | Press release | GlobeNewswire | -0.83% | -1.91% | |
| XTEND Was Built for This Moment: Delivering NDAA-Compliant, Made-in-America Drones to U.S. Defense Customers and Investing in the U.S. Drone Industrial Base | Press release | GlobeNewswire | +3.14% | +3.37% | |
| Form 10-Q JFB Construction Holding For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -3.85% | -3.96% | |
| Form DEFM14C JFB Construction Holding | SEC filing · Form DEFM14C | SEC EDGAR | +0.37% | -3.54% | |
| JFB and XTEND Announce SEC Declares Form S-4 Effective | Press release | GlobeNewswire | +0.37% | -3.54% | |
| JFB and XTEND Continue to Advance Merger Process With Additional Amended S-4 Filing | Press release | GlobeNewswire | +2.66% | +5.31% | |
| XTEND Produces Seven Robotic Platforms Across Five Global Manufacturing Facilities in One Week—All Powered by One Operating System | Press release | GlobeNewswire | -3.71% | +0.74% | |
| JFB and XTEND Provide Consolidated Update on Commercial and Transaction Momentum Ahead of Anticipated Third Quarter Closing of Business Combination | Press release | GlobeNewswire | +9.32% | +1.00% | |
| XTEND Completes the Integration of Atlas, Expanding Its XOS Ecosystem Across Europe | Press release | GlobeNewswire | +2.65% | -2.58% | |
| JFB Construction Anticipates 150% increase in Q2 2026 Revenue Over Q2 2025 Following Initiation of High Profile Commercial Projects for Nationally Recognized Franchises | Press release | GlobeNewswire | +0.00% | +0.81% | |
| JFB and XTEND Advance Toward Public Listing with Second Amended S-4 Filing | Press release | GlobeNewswire | +1.02% | -4.86% | |
| Form 10-Q/A JFB Construction Holding For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -1.34% | -11.21% | |
| Form 8-K JFB Construction Holding For: Jul 16 | SEC filing · Form 8-K | SEC EDGAR | -1.34% | -11.21% | |
| XTEND Supports British Army During Major Autonomous Strike Exercise, Advancing UK Operational Drone Warfare Capabilities | Press release | GlobeNewswire | +0.65% | -3.67% | |
| Form 10-K/A JFB Construction Holding For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +1.70% | +0.26% | |
| XTEND Advances Following Successful Qualification in the $1 Billion U.S. Drone Dominance Program | Press release | GlobeNewswire | +5.01% | -2.20% | |
| XTEND Secures U.S. Patent Protecting Autonomous Navigation Technology for Unmanned Systems | Press release | GlobeNewswire | +0.00% | +1.91% | |
| Form 8-K JFB Construction Holding For: Jun 22 | SEC filing · Form 8-K | SEC EDGAR | +1.77% | -2.29% | |
| XTEND Surpasses $12 Million in Cumulative Defense Orders with $3 Million Follow-On Order Across Two Autonomous System Programs | Press release | GlobeNewswire | +0.41% | -0.41% | |
| XTEND Secures $9.0 Million Program Expanding Autonomous Multi-Drone Operations in the Middle East; Continues to Expand Its Patent Portfolio Protecting Core UAV Navigation and Control Technology | Press release | GlobeNewswire | +0.84% | +2.94% | |
| Form 10-K/A JFB Construction Holding For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.88% | -6.68% | |
| JFB and XTEND Announce Filing of Amended Registration Statement on Form S-4 with the SEC in Connection with their Proposed Business Combination | Press release | GlobeNewswire | +0.88% | -6.68% | |
| XTEND Secures Patent for Operating UAVs Under Degraded Communications and High-Latency Conditions | Press release | GlobeNewswire | -0.59% | +0.79% | |
| XTEND to Participate in the 16th Annual ROTH London Conference | Press release | GlobeNewswire | +0.88% | -6.68% | |
| XTEND Wins $3M Contract for 100 XOS-Enabled Robotic Drone Systems in Asia-Pacific | Press release | GlobeNewswire | -0.72% | -5.96% | |
| XTEND Selected for Phase II Qualifier of U.S. Department of Defense $1 Billion Drone Dominance Program | Press release | GlobeNewswire | -7.09% | +9.22% | |
| JFB Announces XTEND UK Expansion Following £1.93M Order Supporting UK Defense Activities and Launch of Localized XFAB | Press release | GlobeNewswire | +0.20% | +3.31% | |
| Form 8-K JFB Construction Holding For: May 18 | SEC filing · Form 8-K | SEC EDGAR | +0.20% | +3.31% | |
| Form 10-Q JFB Construction Holding For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -0.47% | -0.38% | |
| XTEND Secures Seven-Figure Defense ISR Order in Asia-Pacific | Press release | GlobeNewswire | -3.19% | -0.75% | |
| Form 8-K JFB Construction Holding For: May 11 | SEC filing · Form 8-K | SEC EDGAR | +1.02% | -1.90% | |
| JFB Construction Announces 115% increase in Revenue Q1 2026 over Q1 2025 | Press release | GlobeNewswire | -1.12% | +1.40% | |
| XTEND Secures $2.2 Million Contract for Advanced Autonomous Aerial Defense Systems | Press release | GlobeNewswire | — | — | |
| XTEND Secures $8.25 Million Order, Marking Continued Expansion of Autonomous Drone Programs Across Europe | Press release | GlobeNewswire | +0.52% | -3.46% | |
| Form 8-K JFB Construction Holding For: Apr 28 | SEC filing · Form 8-K | SEC EDGAR | -1.20% | +2.74% | |
| JFB and XTEND Announce Filing of Registration Statement on Form S-4 with the SEC in Connection with their Proposed Business Combination | Press release | GlobeNewswire | +2.33% | -3.50% | |
| Form 10-K/A JFB Construction Holding For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | -0.62% | +3.49% | |
| JFB Announces XTEND Wins Israeli Ministry of Defense Contract to Deploy Operational Drone Systems | Press release | GlobeNewswire | +1.43% | +11.61% | |
| JFB Construction Announces 32% Increase in 2025 Year End Revenues as Compared with 2024 Year End Revenues | Press release | GlobeNewswire | +1.57% | -2.04% | |
| Form 10-K JFB Construction Holding For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | -0.65% | -0.41% | |
| JFB Announces XTEND Becomes First U.S. Company to Receive U.S. Army Safety Board Approval for FPV Drone Programs | Press release | GlobeNewswire | -1.82% | -9.10% | |
| JFB Announces XTEND’s Strategic Partnership with ParaZero Technologies to Revolutionize Drone Interception Capabilities | Press release | GlobeNewswire | +0.32% | -9.86% | |
| Form 8-K JFB Construction Holding For: Mar 20 | SEC filing · Form 8-K | SEC EDGAR | +4.57% | -5.36% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the JFB section they belong to.
Where else JFB is measured.
JFB earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is JFB Construction Holdings - Class A's median reaction calculated?
Every labeled JFB 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 165 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. 41% of JFB'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 JFB'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.