Masonite International Corporation Ordinary Shares (Canada) (DOOR)
DOOR moved a median of +0.01% 30 minutes after news, and +0.00% by the close. How DOOR actually reacts to news — the realized, point-in-time move the market made, measured across 395 labeled events over the last three years with zero look-ahead.
DOOR’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -0.01% | 48% | 118 |
| 30-min | +0.01% | 52% | 118 |
| 60-min | +0.02% | 54% | 118 |
| to close | +0.00% | 50% | 118 |
| Middle 50% of DOOR reactions | -0.08% to +0.08% |
|---|---|
| Median reaction (30-min) | +0.01% |
| Measured reactions | 395 |
Half of all Masonite International Corporation Ordinary Shares (Canada) news events land between -0.08% and +0.08% at 30 minutes.
Reaction stats as of 2026-08-31. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How DOOR reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst downgrades | 16 | +0.14% | 56% | -0.10% |
| Coverage initiations | 13 | -0.01% | 46% | +0.03% |
| Rating reiterations | 12 | -0.01% | 42% | -0.04% |
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. 3 further classes were observed with fewer than 10 measured events and are not published. See how DOOR ranks against every other measured name →
That’s how DOOR usually reacts — get an email when it moves on news →Email me when DOOR moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to DOOR's baseline. Nothing else.
Recent DOOR events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Masonite International Corporation Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights - DOOR | Press release | PR Newswire | — | — | |
| Masonite International Corporation Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights - DOOR | Press release | PR Newswire | — | — | |
| REMINDER: Masonite International Corporation Investors With Significant Losses Must Act By April 7, 2026 | Press release | ACCESS Newswire | — | — | |
| REMINDER: Masonite International Corporation Investors With Significant Losses Must Act By April 7, 2026 | Press release | ACCESS Newswire | — | — | |
| Masonite International Corporation Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights - DOOR | Press release | PR Newswire | — | — | |
| Masonite International Corporation Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights - DOOR | Press release | PR Newswire | — | — | |
| Masonite International Corporation Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights - DOOR | Press release | PR Newswire | — | — | |
| Masonite International Corporation Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights – DOOR | Press release | Business Wire | — | — | |
| Form S-8 POS MASONITE INTERNATIONAL | SEC filing · Form S-8 | SEC EDGAR | — | — | |
| Form 8-K MASONITE INTERNATIONAL For: May 14 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form 8-K MASONITE INTERNATIONAL For: May 15 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form 10-Q MASONITE INTERNATIONAL For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.01% | -0.02% | |
| Form 8-K MASONITE INTERNATIONAL For: May 06 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -0.02% | |
| Masonite International Corporation Reports First Quarter Results | Press release | Business Wire | +0.00% | -0.02% | |
| Form 8-K MASONITE INTERNATIONAL For: Apr 29 | SEC filing · Form 8-K | SEC EDGAR | -0.01% | -0.04% | |
| Form 10-K/A MASONITE INTERNATIONAL For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.03% | +0.01% | |
| Form 8-K MASONITE INTERNATIONAL For: Apr 25 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -0.10% | |
| Masonite Shareholders Approve Transaction with Owens Corning | Press release | Business Wire | -0.01% | +0.17% | |
| Form 8-K MASONITE INTERNATIONAL For: Apr 24 | SEC filing · Form 8-K | SEC EDGAR | +0.08% | +0.20% | |
| Masonite Announces Sale of Architectural Business Segment | Press release | Business Wire | +0.08% | +0.20% | |
| Form 8-K MASONITE INTERNATIONAL For: Apr 16 | SEC filing · Form 8-K | SEC EDGAR | -0.16% | +0.12% | |
| Form DEFA14A MASONITE INTERNATIONAL | SEC filing · Form DEFA14A | SEC EDGAR | -0.16% | +0.12% | |
| Form 8-K MASONITE INTERNATIONAL For: Apr 15 | SEC filing · Form 8-K | SEC EDGAR | -0.16% | +0.12% | |
| Form DEFA14A MASONITE INTERNATIONAL | SEC filing · Form DEFA14A | SEC EDGAR | -0.16% | +0.12% | |
| Masonite Announces Date of First Quarter 2024 Earnings Release | Press release | Business Wire | +0.01% | +0.00% | |
| Form DEFM14A MASONITE INTERNATIONAL | SEC filing · Form DEFM14A | SEC EDGAR | +0.14% | +0.22% | |
| Form PREM14A MASONITE INTERNATIONAL For: Mar 08 | SEC filing · Form PREM14A | SEC EDGAR | +0.01% | +0.14% | |
| Form 10-K MASONITE INTERNATIONAL For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.03% | +0.01% | |
| Masonite Introduces Exterior Door System that Delivers Superior Security for Homes | Press release | Business Wire | -0.06% | -0.12% | |
| Form 8-K MASONITE INTERNATIONAL For: Feb 20 | SEC filing · Form 8-K | SEC EDGAR | +0.12% | -0.03% | |
| Masonite International Corporation Reports 2023 Fourth Quarter and Full Year Financial Results | Press release | Business Wire | +0.12% | -0.03% | |
| SHAREHOLDER UPDATE: Halper Sadeh LLC Investigates DOOR, ZFOX, CBAY, WISH | Press release | GlobeNewswire | +0.12% | -0.03% | |
| SHAREHOLDER UPDATE: Halper Sadeh LLC Investigates DOOR, CBAY, WISH, AMAM | Press release | Accesswire | +0.04% | -0.13% | |
| SHAREHOLDER UPDATE: Halper Sadeh LLC Investigates DOOR, ZFOX, RYZB | Press release | Accesswire | +0.02% | -0.20% | |
| SHAREHOLDER UPDATE: Halper Sadeh LLC Investigates DOOR, CRC, GLT, ZFOX | Press release | GlobeNewswire | +0.13% | -0.34% | |
| DOOR Stock Alert: Halper Sadeh LLC Is Investigating Whether the Sale of Masonite International Corporation Is Fair to Shareholders | Press release | Business Wire | -0.19% | +0.39% | |
| Form 8-K MASONITE INTERNATIONAL For: Feb 08 | SEC filing · Form 8-K | SEC EDGAR | -0.19% | +0.39% | |
| Form DEFA14A MASONITE INTERNATIONAL | SEC filing · Form DEFA14A | SEC EDGAR | -0.19% | +0.39% | |
| Masonite Announces Fourth Quarter and Full Year 2023 Earnings Release and Investor Conference Call | Press release | Business Wire | +0.15% | -2.14% | |
| Form 8-K MASONITE INTERNATIONAL For: Jan 16 | SEC filing · Form 8-K | SEC EDGAR | +1.38% | +2.58% | |
| Masonite Confirms Termination of Agreement to Acquire PGT Innovations | Press release | Business Wire | +1.38% | +2.58% | |
| Masonite Reiterates the Compelling Value of its Agreement to Acquire PGT Innovations | Press release | Business Wire | +0.92% | +1.98% | |
| Masonite Announces Transformative Acquisition of PGT Innovations, Creating a Leading Door and Window Solutions Company with Over $4 Billion In Combined Revenue | Press release | Business Wire | -2.77% | -8.07% | |
| ALERT: Rowley Law PLLC is Investigating Proposed Acquisition of PGT Innovations, Inc. | Press release | PR Newswire | +1.39% | +3.19% | |
| Form 8-K MASONITE INTERNATIONAL For: Dec 18 | SEC filing · Form 8-K | SEC EDGAR | -2.77% | -8.07% | |
| Form 10-Q MASONITE INTERNATIONAL For: Oct 01 | SEC filing · Form 10-Q | SEC EDGAR | +0.16% | -0.21% | |
| Form 8-K MASONITE INTERNATIONAL For: Nov 07 | SEC filing · Form 8-K | SEC EDGAR | -3.46% | -2.41% | |
| Masonite International Corporation Reports Third Quarter Results Featuring Margin Resilience and Strong Operating Cash Flow | Press release | Business Wire | -3.46% | -2.41% | |
| Form 8-K MASONITE INTERNATIONAL For: Oct 19 | SEC filing · Form 8-K | SEC EDGAR | +0.69% | -1.25% | |
| Masonite International Corporation Announces Acquisition of Fleetwood, a Premium Manufacturer of Innovative Glass Door Systems | Press release | Business Wire | +0.69% | -1.25% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the DOOR section they belong to.
Where else DOOR is measured.
DOOR earnings → · Analyst actions → · SEC filings →
Other Basic Materials names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Ashland Inc. (ASH) | 396 | +0.01% | 50% |
| FORESIGHT ENERGY PARTNERS LP (FELP) | 396 | 0.00% | 45% |
| Builders FirstSource, Inc. (BLDR) | 394 | -0.20% | 45% |
| Nucor Corporation (NUE) | 392 | -0.03% | 47% |
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 Basic Materials names, measured the same way →
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How the numbers are made.
How is Masonite International Corporation Ordinary Shares (Canada)'s median reaction calculated?
Every labeled DOOR 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 395 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. 52% of DOOR'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 DOOR'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.