iRobot Corporation (IRBT)
IRBT moved a median of -0.15% 30 minutes after news, and -0.63% by the close. How IRBT actually reacts to news — the realized, point-in-time move the market made, measured across 1,382 labeled events over the last three years with zero look-ahead.
IRBT’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -0.12% | 42% | 1,379 |
| 30-min | -0.15% | 45% | 1,380 |
| 60-min | -0.24% | 46% | 1,380 |
| to close | -0.63% | 42% | 1,353 |
| Middle 50% of IRBT reactions | -1.45% to +1.35% |
|---|---|
| Median reaction (30-min) | -0.15% |
| Measured reactions | 1,382 |
Half of all iRobot Corporation news events land between -1.45% and +1.35% 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 IRBT moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to IRBT's baseline. Nothing else.
Recent IRBT events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| iRobot Redefines Floor Care with the Introduction of a 5-in-1 Disinfecting Hard Floor Cleaner Along with a New Generation of Roomba Robots | Press release | PR Newswire | — | — | |
| Form 8-K IROBOT CORP For: Dec 10 | SEC filing · Form 8-K | SEC EDGAR | +10.00% | -1.67% | |
| Form 8-K IROBOT CORP For: Dec 15 | SEC filing · Form 8-K | SEC EDGAR | -4.07% | -14.70% | |
| iRobot Announces Strategic Transaction to Drive Long-Term Growth Plan | Press release | PR Newswire | +10.00% | -1.67% | |
| Form 8-K IROBOT CORP For: Nov 24 | SEC filing · Form 8-K | SEC EDGAR | +7.62% | +22.64% | |
| Form 10-Q IROBOT CORP For: Sep 27 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | +9.45% | |
| Form 8-K IROBOT CORP For: Nov 06 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +9.45% | |
| iRobot Reports Third-Quarter 2025 Financial Results | Press release | PR Newswire | +0.00% | +9.45% | |
| Form 8-K IROBOT CORP For: Oct 22 | SEC filing · Form 8-K | SEC EDGAR | -2.85% | -25.00% | |
| Robotics and AI Drive a New Era of Growth and Uplisting Activity | Press release | PR Newswire | +0.85% | -4.03% | |
| Form 8-K IROBOT CORP For: Sep 12 | SEC filing · Form 8-K | SEC EDGAR | -1.25% | +1.25% | |
| Lifshitz Law PLLC Announces Investigations of iRobot Corporation (NASDAQ:IRBT), Centene Corporation (NYSE:CNC), Capricor Therapeutics, Inc. (NASDAQ:CAPR), And Neogen Corporation (NASDAQ:NEOG) | Press release | ACCESS Newswire | +0.30% | +2.26% | |
| iRobot Corporation Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights - IRBT | Press release | PR Newswire | -0.16% | -0.63% | |
| iRobot Corporation Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights - IRBT | Press release | Business Wire | — | -0.93% | |
| Lifshitz Law PLLC Announces Investigations of iRobot Corporation (NASDAQ: IRBT), Centene Corporation (NYSE: CNC), Capricor Therapeutics, Inc. (NASDAQ: CAPR), and Neogen Corporation (NASDAQ: NEOG) | Press release | ACCESS Newswire | -0.15% | -0.93% | |
| Form 10-Q IROBOT CORP For: Jun 28 | SEC filing · Form 10-Q | SEC EDGAR | +1.17% | -8.86% | |
| Form 8-K IROBOT CORP For: Aug 06 | SEC filing · Form 8-K | SEC EDGAR | +1.17% | -8.86% | |
| iRobot Reports Second-Quarter 2025 Financial Results | Press release | PR Newswire | +1.17% | -8.86% | |
| iRobot Launches Roomba® Max 705 Combo Robot + AutoWash™ Dock The Company's Most Advanced 2-in-1 Cleaning System | Press release | PR Newswire | -1.24% | -6.63% | |
| iRobot Debuts New Marketing Campaign Roomba®. Made for This | Press release | PR Newswire | -0.15% | -1.99% | |
| Form 8-K IROBOT CORP For: Jun 05 | SEC filing · Form 8-K | SEC EDGAR | -3.18% | +14.45% | |
| Form SD IROBOT CORP | SEC filing · Form SD | SEC EDGAR | -1.96% | +0.65% | |
| Form S-8 IROBOT CORP | SEC filing · Form S-8 | SEC EDGAR | -0.12% | +0.00% | |
| Form 8-K IROBOT CORP For: May 16 | SEC filing · Form 8-K | SEC EDGAR | -0.37% | -5.88% | |
| Form 10-Q IROBOT CORP For: Mar 29 | SEC filing · Form 10-Q | SEC EDGAR | -3.29% | +1.32% | |
| Form 8-K IROBOT CORP For: Apr 30 | SEC filing · Form 8-K | SEC EDGAR | -3.29% | +1.32% | |
| iRobot Reports First Quarter 2025 Financial Results | Press release | PR Newswire | -3.29% | +1.32% | |
| iRobot Introduces Roomba® Max 705 Vac Robot + AutoEmpty™ Dock | Press release | PR Newswire | +1.11% | -3.00% | |
| Form 8-K IROBOT CORP For: Apr 09 | SEC filing · Form 8-K | SEC EDGAR | +3.30% | +10.44% | |
| Form DEFA14A IROBOT CORP | SEC filing · Form DEFA14A | SEC EDGAR | +3.30% | +10.44% | |
| Bronstein, Gewirtz & Grossman, LLC Is Investigating iRobot Corporation (IRBT) And Encourages Shareholders to Connect | Press release | ACCESS Newswire | -0.20% | -0.60% | |
| Bronstein, Gewirtz & Grossman, LLC Initiates an Investigation into Allegations Against iRobot Corporation (IRBT) And Encourages Shareholders to Reach Out | Press release | ACCESS Newswire | -0.82% | +1.64% | |
| Form 8-K IROBOT CORP For: Mar 26 | SEC filing · Form 8-K | SEC EDGAR | +3.73% | +3.73% | |
| Bronstein, Gewirtz & Grossman, LLC Announces an Investigation Against iRobot Corporation (IRBT) and Encourages Shareholders to Learn More About the Investigation | Press release | ACCESS Newswire | -1.08% | +1.55% | |
| Form ARS IROBOT CORP For: Mar 31 | SEC filing · Form ARS | SEC EDGAR | -5.58% | -7.81% | |
| Form DEF 14A IROBOT CORP For: Mar 31 | SEC filing · Form DEF | SEC EDGAR | -5.58% | -7.81% | |
| Form DEFA14A IROBOT CORP | SEC filing · Form DEFA14A | SEC EDGAR | -5.58% | -7.81% | |
| iRobot Corporation (IRBT) Investigation: Bronstein, Gewirtz & Grossman, LLC Encourages Shareholders to Contact the Firm to Learn More About the Investigation | Press release | ACCESS Newswire | -0.17% | -3.76% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages iRobot Corporation (IRBT) Stockholders to Inquire about Securities Investigation | Press release | ACCESS Newswire | -0.77% | +2.45% | |
| iRobot Corporation (IRBT) Investigation: Bronstein, Gewirtz & Grossman, LLC Encourages Shareholders to Contact the Firm to Learn More About the Investigation | Press release | ACCESS Newswire | +0.00% | +1.77% | |
| Bronstein, Gewirtz & Grossman, LLC Initiates an Investigation into Allegations Against iRobot Corporation (IRBT) And Encourages Stockholders to Reach Out | Press release | ACCESS Newswire | -0.30% | +1.77% | |
| Bronstein, Gewirtz & Grossman, LLC Is Investigating iRobot Corporation (IRBT) And Encourages Stockholders to Connect | Press release | ACCESS Newswire | +0.25% | +6.77% | |
| iRobot Announces Inducement Grant under Nasdaq Listing Rule 5635(c)(4) | Press release | PR Newswire | -0.30% | +1.77% | |
| iRobot Corporation (IRBT) Investigation: Bronstein, Gewirtz & Grossman, LLC Encourages Stockholders to Contact the Firm to Learn More About the Investigation | Press release | ACCESS Newswire | -0.29% | -7.47% | |
| Bronstein, Gewirtz & Grossman, LLC Announces an Investigation Against iRobot Corporation (IRBT) and Encourages Stockholders to Learn More About the Investigation | Press release | ACCESS Newswire | +1.48% | +0.59% | |
| Form 8-K IROBOT CORP For: Mar 18 | SEC filing · Form 8-K | SEC EDGAR | +1.21% | -4.24% | |
| Form PRE 14A IROBOT CORP For: Mar 19 | SEC filing · Form PRE | SEC EDGAR | +1.21% | -4.24% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages iRobot Corporation (IRBT) Investors to Inquire about Securities Investigation | Press release | ACCESS Newswire | +0.27% | -7.63% | |
| Form 10-K IROBOT CORP For: Dec 28 | SEC filing · Form 10-K | SEC EDGAR | +2.04% | +2.01% | |
| Form 8-K IROBOT CORP For: Mar 10 | SEC filing · Form 8-K | SEC EDGAR | +2.04% | +2.01% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the IRBT section they belong to.
Where else IRBT is measured.
IRBT earnings → · Analyst actions → · SEC filings →
Other Technology names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| VIRTUSA (VRTU) | 1,390 | -0.02% | 47% |
| Nokia Corporation Sponsored American Depositary Shares (NOK) | 1,384 | +0.08% | 52% |
| Synopsys, Inc. (SNPS) | 1,358 | +0.02% | 51% |
| Gartner, Inc. (IT) | 1,356 | +0.00% | 50% |
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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Every name we’ve measured, in one place.
How the numbers are made.
How is iRobot Corporation's median reaction calculated?
Every labeled IRBT 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 1,382 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. 45% of IRBT'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 IRBT'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.