MasterBrand, Inc. (MBC)
MBC moved a median of +0.13% 30 minutes after news, and -0.20% by the close. How MBC actually reacts to news — the realized, point-in-time move the market made, measured across 279 labeled events over the last three years with zero look-ahead.
MBC’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 47% | 279 |
| 30-min | +0.13% | 55% | 279 |
| 60-min | +0.33% | 55% | 279 |
| to close | -0.20% | 39% | 278 |
| Middle 50% of MBC reactions | -0.87% to +0.99% |
|---|---|
| Median reaction (30-min) | +0.13% |
| Measured reactions | 279 |
Half of all MasterBrand, Inc. news events land between -0.87% 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 MBC moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to MBC's baseline. Nothing else.
Recent MBC events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| MasterBrand to Announce Third Quarter 2026 Results on November 5 | Press release | Business Wire | -0.72% | -0.57% | |
| Kitchen Design Aesthetics and Trends: MasterBrand, Inc. Unveils 2027 Cabinetry Trends and Finish of the Year | Press release | PR Newswire | -1.69% | -1.55% | |
| MasterBrand Reports Second Quarter 2026 Financial Results | Press release | Business Wire | +4.04% | +2.47% | |
| MasterBrand to Announce Second Quarter 2026 Results on August 4 | Press release | Business Wire | -1.07% | -2.15% | |
| Form 8-K MasterBrand, Inc. For: May 28 | SEC filing · Form 8-K | SEC EDGAR | +3.30% | -0.22% | |
| Form S-8 MasterBrand, Inc. | SEC filing · Form S-8 | SEC EDGAR | +1.13% | -2.25% | |
| MasterBrand and American Woodmark Successfully Complete Merger Transaction | Press release | Business Wire | +3.30% | -0.22% | |
| Form 8-K MasterBrand, Inc. For: May 22 | SEC filing · Form 8-K | SEC EDGAR | +1.66% | +10.18% | |
| Form 10-Q MasterBrand, Inc. For: Mar 29 | SEC filing · Form 10-Q | SEC EDGAR | +0.32% | -2.35% | |
| Form 8-K MasterBrand, Inc. For: May 05 | SEC filing · Form 8-K | SEC EDGAR | -3.95% | -7.78% | |
| MasterBrand Reports First Quarter 2026 Financial Results | Press release | Business Wire | -3.95% | -7.78% | |
| MasterBrand, Inc. Announces Platinum Sponsorship of the Habitat for Humanity 2026 Carter Work Project | Press release | PR Newswire | -0.21% | -3.48% | |
| Form 8-K MasterBrand, Inc. For: Apr 17 | SEC filing · Form 8-K | SEC EDGAR | +0.54% | +1.52% | |
| Form ARS MasterBrand, Inc. For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +0.54% | +1.52% | |
| Form DEF 14A MasterBrand, Inc. For: Jun 04 | SEC filing · Form DEF | SEC EDGAR | +0.54% | +1.52% | |
| Form DEFA14A MasterBrand, Inc. | SEC filing · Form DEFA14A | SEC EDGAR | +0.54% | +1.52% | |
| MasterBrand to Announce First Quarter 2026 Results on May 5 | Press release | Business Wire | +0.69% | -4.58% | |
| Form 8-K MasterBrand, Inc. For: Mar 26 | SEC filing · Form 8-K | SEC EDGAR | -0.18% | -1.07% | |
| Form 10-K MasterBrand, Inc. For: Dec 28 | SEC filing · Form 10-K | SEC EDGAR | -0.62% | -2.76% | |
| Form 8-K MasterBrand, Inc. For: Feb 10 | SEC filing · Form 8-K | SEC EDGAR | +7.55% | +9.74% | |
| MasterBrand Reports Fourth Quarter and Full Year 2025 Financial Results | Press release | Business Wire | +7.55% | +9.74% | |
| MasterBrand and Cambria Collaborate on Feature Kitchen at KBIS 2026 | Press release | PR Newswire | -0.83% | -0.25% | |
| MasterBrand to Announce Fourth Quarter and Full Year 2025 Results on February 10 | Press release | Business Wire | +0.40% | +1.36% | |
| Form 8-K MasterBrand, Inc. For: Nov 07 | SEC filing · Form 8-K | SEC EDGAR | +0.45% | -3.08% | |
| Form 10-Q MasterBrand, Inc. For: Sep 28 | SEC filing · Form 10-Q | SEC EDGAR | +0.04% | -2.17% | |
| Form 8-K MasterBrand, Inc. For: Nov 04 | SEC filing · Form 8-K | SEC EDGAR | -1.83% | -10.14% | |
| MasterBrand Reports Third Quarter 2025 Financial Results | Press release | Business Wire | -1.83% | -10.14% | |
| Form 8-K MasterBrand, Inc. For: Oct 30 | SEC filing · Form 8-K | SEC EDGAR | +0.16% | +0.24% | |
| Merger Between MasterBrand and American Woodmark Receives Shareholder Approval | Press release | Business Wire | +0.16% | +0.24% | |
| MasterBrand, Inc. Gives Back as Exclusive Cabinet Provider for Habitat for Humanity's Carter Work Project | Press release | PR Newswire | -0.16% | +0.31% | |
| Form 8-K MasterBrand, Inc. For: Oct 20 | SEC filing · Form 8-K | SEC EDGAR | -0.16% | +0.31% | |
| A New Era of Refined Style: StarMark Cabinetry Debuts Largest Collection Yet | Press release | PR Newswire | -0.07% | -0.75% | |
| MasterBrand to Announce Third Quarter 2025 Results on November 4 | Press release | Business Wire | -0.74% | +3.02% | |
| Form 8-K MasterBrand, Inc. For: Oct 03 | SEC filing · Form 8-K | SEC EDGAR | +0.23% | -1.99% | |
| Form EFFECT MasterBrand, Inc. | SEC filing · Form EFFECT | SEC EDGAR | +0.36% | -0.22% | |
| Form S-4/A MasterBrand, Inc. | SEC filing · Form S-4 | SEC EDGAR | -0.27% | +0.15% | |
| The New Era of Kitchen Design: MasterBrand Unveils 2026 Cabinetry Trends and 'Lush Forest' as Finish of the Year | Press release | PR Newswire | -0.18% | +1.33% | |
| Form S-4 MasterBrand, Inc. | SEC filing · Form S-4 | SEC EDGAR | -0.07% | +0.15% | |
| Form 10-Q MasterBrand, Inc. For: Jun 29 | SEC filing · Form 10-Q | SEC EDGAR | -5.16% | -7.78% | |
| Form 8-K MasterBrand, Inc. For: Aug 05 | SEC filing · Form 8-K | SEC EDGAR | -0.12% | -0.32% | |
| MasterBrand and American Woodmark to Combine in an All-Stock Transaction to Accelerate Value Delivery Through: | Press release | Business Wire | +3.45% | +6.72% | |
| MasterBrand Reports Second Quarter 2025 Financial Results | Press release | Business Wire | +3.45% | +6.72% | |
| MBC Stock Alert: Halper Sadeh LLC Is Investigating Whether the Merger of MasterBrand, Inc. Is Fair to Shareholders | Press release | Business Wire | +3.45% | +6.72% | |
| MasterBrand to Announce Second Quarter 2025 Results on August 6 | Press release | Business Wire | +0.13% | +3.88% | |
| Form 11-K MasterBrand, Inc. For: Dec 31 | SEC filing · Form 11-K | SEC EDGAR | -0.05% | +0.70% | |
| Form 8-K MasterBrand, Inc. For: Jun 17 | SEC filing · Form 8-K | SEC EDGAR | +0.28% | +1.29% | |
| MasterBrand Releases Third Annual Corporate Sustainability and Responsibility (CSR) Report | Press release | Business Wire | -0.66% | +0.60% | |
| Form 8-K MasterBrand, Inc. For: Jun 04 | SEC filing · Form 8-K | SEC EDGAR | -0.84% | +2.15% | |
| Form SD MasterBrand, Inc. | SEC filing · Form SD | SEC EDGAR | -1.01% | +3.45% | |
| Form 10-Q MasterBrand, Inc. For: Mar 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.66% | -5.21% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the MBC section they belong to.
Where else MBC is measured.
MBC earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is MasterBrand, Inc.'s median reaction calculated?
Every labeled MBC 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 279 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. 55% of MBC'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 MBC'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.