Alarm.com Holdings, Inc. (ALRM)
ALRM moved a median of +0.11% 30 minutes after news, and +0.27% by the close. How ALRM actually reacts to news — the realized, point-in-time move the market made, measured across 334 labeled events over the last three years with zero look-ahead.
ALRM’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | +0.03% | 53% | 331 |
| 30-min | +0.11% | 55% | 333 |
| 60-min | +0.09% | 54% | 333 |
| to close | +0.27% | 57% | 331 |
| Middle 50% of ALRM reactions | -0.42% to +0.54% |
|---|---|
| Median reaction (30-min) | +0.11% |
| Measured reactions | 334 |
Half of all Alarm.com Holdings, Inc. news events land between -0.42% and +0.54% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How ALRM reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 18 | -0.03% | 39% | +0.16% |
| Analyst downgrades | 11 | +0.60% | 73% | -0.53% |
| Rating reiterations | 23 | +0.07% | 61% | +0.10% |
Last 3 years, pulled 2026-09-21. 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 ALRM ranks against every other measured name →
That’s how ALRM usually reacts — get an email when it moves on news →Email me when ALRM moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to ALRM's baseline. Nothing else.
Recent ALRM events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Alarm.com Extends Intelligent Video Protection to More Entryways with New Battery-Powered 781B | Press release | Business Wire | +0.32% | -0.25% | |
| OpenEye Advances Enterprise Operations With Its Latest AI Capabilities | Press release | Business Wire | +0.55% | +0.42% | |
| Shooter Detection Systems Joins ONVIF®, Marking a New Chapter in Open Architecture Gunshot Detection | Press release | Business Wire | +0.29% | -2.46% | |
| Shooter Detection Systems' Gunshot Detection System Earns Fourth Consecutive Secure Campus Award | Press release | Business Wire | -0.24% | -0.21% | |
| Alarm.com Reports Second Quarter 2026 Results | Press release | Business Wire | -1.27% | +0.70% | |
| Form 10-Q Alarm.com Holdings, Inc. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -1.27% | +0.70% | |
| Form 8-K Alarm.com Holdings, Inc. For: Aug 06 | SEC filing · Form 8-K | SEC EDGAR | -1.27% | +0.70% | |
| Alarm.com to Announce 2026 Second Quarter Results on August 6, 2026 | Press release | Business Wire | +0.36% | +1.13% | |
| Partnership with EnergyHub, Sunrun, and The Mobility House to Test Massachusetts Residential Vehicle-to-Grid Program for Eversource and National Grid Customers | Press release | Business Wire | +0.47% | -0.08% | |
| Alarm.com Expands into Commercial Fire with New Fire Communicator | Press release | Business Wire | +0.02% | +2.50% | |
| Alarm.com Introduces Premium Indoor Camera With Built-In Privacy Shutter and Color Night Vision | Press release | Business Wire | +0.20% | -0.36% | |
| Security Industry Seizing Opportunity With Proactive Visual Intelligence, Bringing Transformational Advancements to Traditional Video Surveillance | Press release | Business Wire | -0.54% | -0.26% | |
| Surety Home Launches Early Access Program for the nami Agile Security System | Press release | PR Web | +0.48% | +0.66% | |
| Shooter Detection Systems to Highlight Role of Gunshot Detection in Enhancing Venue and Event Safety at NCS4 Annual Conference | Press release | Business Wire | -0.24% | +1.97% | |
| Form 8-K Alarm.com Holdings, Inc. For: Jun 03 | SEC filing · Form 8-K | SEC EDGAR | -0.22% | +1.20% | |
| Shooter Detection Systems Outdoor Gunshot Detection System Wins SSI Most Valuable Product (MVP) Award | Press release | Business Wire | -0.01% | +0.18% | |
| Alarm.com and CHeKT Earn SSI Most Valuable Product (MVP) Award for Remote Video Monitoring Integration | Press release | Business Wire | +0.52% | -0.66% | |
| Alarm.com Reports First Quarter 2026 Results | Press release | Business Wire | +2.00% | +1.28% | |
| Form 10-Q Alarm.com Holdings, Inc. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +2.00% | +1.28% | |
| Form 8-K Alarm.com Holdings, Inc. For: May 07 | SEC filing · Form 8-K | SEC EDGAR | +2.00% | +1.28% | |
| Form ARS Alarm.com Holdings, Inc. For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | -0.18% | +2.80% | |
| Form DEF 14A Alarm.com Holdings, Inc. For: Jun 03 | SEC filing · Form DEF | SEC EDGAR | -0.18% | +2.80% | |
| Form DEFA14A Alarm.com Holdings, Inc. | SEC filing · Form DEFA14A | SEC EDGAR | -0.18% | +2.80% | |
| Alarm.com to Announce 2026 First Quarter Results on May 7, 2026 | Press release | Business Wire | -2.79% | -4.86% | |
| Alarm.com Modernizes Legacy Security Systems with Enhanced Universal Communicator | Press release | Business Wire | -0.20% | +3.60% | |
| Alarm.com Expands Video Security Portfolio with New AI Capabilities and Flexible Camera Solutions | Press release | Business Wire | -1.44% | +0.49% | |
| Alarm.com Showcases Unified Platform Growth and AI-Powered Innovation at ISC West 2026 | Press release | Business Wire | +0.31% | +0.81% | |
| Form 8-K Alarm.com Holdings, Inc. For: Mar 12 | SEC filing · Form 8-K | SEC EDGAR | +2.86% | +1.49% | |
| Shooter Detection Systems Introduces SDS Perimeter, Bringing Proven Gunshot Detection Expertise to Outdoor Environments | Press release | Business Wire | +0.31% | +0.81% | |
| PointCentral Introduces Industry’s First Online Multi-Credential Z-Wave Long Range Lock Solution for Multifamily | Press release | Business Wire | +0.04% | +0.27% | |
| Shooter Detection Systems to Showcase Outdoor Gunshot Detection Innovation and Industry Leadership at ISC West 2026 | Press release | Business Wire | +0.84% | +6.02% | |
| EnergyHub and Rivian Partner to Bring the Benefits of EV Managed Charging to Drivers Nationwide | Press release | Business Wire | +1.35% | +2.66% | |
| Alarm.com Reports Fourth Quarter and Full Year 2025 Results | Press release | Business Wire | -1.37% | -3.14% | |
| Form 10-K Alarm.com Holdings, Inc. For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | -1.37% | -3.14% | |
| Form 8-K Alarm.com Holdings, Inc. For: Feb 19 | SEC filing · Form 8-K | SEC EDGAR | -1.37% | -3.14% | |
| Alarm.com to Announce 2025 Fourth Quarter and Full Year Results on February 19, 2026 | Press release | Business Wire | -0.42% | -0.64% | |
| Active Managed EV Charging Can Double the Distribution Grid’s EV Hosting Capacity, New Brattle Group Report Finds | Press release | Business Wire | +0.57% | -0.92% | |
| Alarm.com Transforms Multi-Tenant Buildings with Low-Cost Video Intercom Directory Solution | Press release | Business Wire | -0.12% | +0.36% | |
| SDS’ New Outdoor Gunshot Detection System Named Best in Threat Detection by SecurityInfoWatch Readers | Press release | Business Wire | -0.15% | -0.30% | |
| Alarm.com Partners with Everon to Launch Full Stack Security Solution | Press release | Business Wire | +0.00% | -0.36% | |
| EnergyHub Acquires Resideo Grid Services to Accelerate VPP Growth for Utilities | Press release | Business Wire | -0.01% | +0.79% | |
| Brooklyn Chatter Announces 2025 Best Local Business Awards | Press release | PR Web | -0.84% | -3.19% | |
| Alarm.com Introduces AI-Powered ADC-V730 Wi-Fi Spotlight Camera with Proactive Deterrence | Press release | Business Wire | -0.67% | — | |
| Alarm.com Showcases Unified Smart Security Platform at The Security Event Asia 2025 | Press release | PR Newswire | -0.20% | +0.28% | |
| Alarm.com Reports Third Quarter 2025 Results | Press release | Business Wire | +2.05% | +2.00% | |
| Form 10-Q Alarm.com Holdings, Inc. For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +2.05% | +2.00% | |
| Form 8-K Alarm.com Holdings, Inc. For: Nov 06 | SEC filing · Form 8-K | SEC EDGAR | +2.05% | +2.00% | |
| ULTRALOQ Launches Bolt Z-Wave with Long Range Support and Expands Support for Alarm.com and Z-Wave Ecosystems | Press release | PR Newswire | -0.02% | +0.50% | |
| Alarm.com to Announce 2025 Third Quarter Results on November 6, 2025 | Press release | Business Wire | -0.34% | +1.73% | |
| Alarm.com Brings Pro-Grade Video Security to More Homes and Businesses with the New ADC-V516 Indoor Wi-Fi Camera | Press release | Business Wire | +0.49% | -1.50% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the ALRM section they belong to.
Where else ALRM is measured.
ALRM earnings → · Analyst actions → · SEC filings →
Other Technology names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| TELARIA INC (TLRA) | 337 | 0.00% | 49% |
| MicroVision, Inc. (MVIS) | 335 | -0.86% | 41% |
| ANSYS, Inc. (ANSS) | 334 | -0.05% | 44% |
| QUANTENNA COMMUNICATIONS (QTNA) | 334 | -0.06% | 45% |
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.
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How the numbers are made.
How is Alarm.com Holdings, Inc.'s median reaction calculated?
Every labeled ALRM 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 334 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 ALRM'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 ALRM'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.