Acco Brands Corporation (ACCO)
How ACCO actually reacts to news — the realized, point-in-time move the market made, measured across 438 labeled events over the last three years with zero look-ahead.
ACCO’s median reaction, across the day.
Half of all Acco Brands Corporation news events land between -0.55% and +0.37% at 30 minutes.
Reaction stats as of 2026-08-13. Reaction = percent move vs. the price at the news timestamp.
Email me when ACCO moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to ACCO’s baseline. Nothing else.
Get “How ACCO reacts to news” as a PDF.
A free one-page summary: ACCO’s median reaction to news and the full breakdown by event type — the numbers on this page, in one page.
Recent ACCO events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| ACCO Brands to Acquire Trust | Press release | Business Wire | -0.91% | — | |
| Form 8-K ACCO BRANDS Corp For: Aug 14 | SEC filing · Form 8-K | SEC EDGAR | -0.91% | — | |
| Form 10-Q ACCO BRANDS Corp For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.35% | -0.59% | |
| ACCO Brands Reports Second Quarter Results | Press release | Business Wire | +2.36% | -0.24% | |
| Form 8-K ACCO BRANDS Corp For: Jul 30 | SEC filing · Form 8-K | SEC EDGAR | +2.36% | -0.24% | |
| ACCO Brands Corporation Declares Quarterly Dividend | Press release | Business Wire | -1.13% | +0.76% | |
| ACCO Brands Corporation Announces Second Quarter 2026 Earnings Webcast | Press release | Business Wire | +0.87% | +1.24% | |
| Form 11-K ACCO BRANDS Corp For: Dec 31 | SEC filing · Form 11-K | SEC EDGAR | -1.20% | +2.15% | |
| Kensington Introduces Pro Fit™ Ergo TB675 Vertical Trackballs for Precision, Comfort, and Multi-Device Productivity | Press release | Business Wire | +0.00% | +1.79% | |
| Form SD ACCO BRANDS Corp | SEC filing · Form SD | SEC EDGAR | +0.00% | +0.38% | |
| Kensington Launches Entry-Level Thunderbolt 5 Docking Station with 80Gbps Speeds and Triple 4K Support | Press release | Business Wire | +0.00% | +3.38% | |
| Form 8-K ACCO BRANDS Corp For: May 19 | SEC filing · Form 8-K | SEC EDGAR | -0.40% | +0.80% | |
| Form S-8 ACCO BRANDS Corp | SEC filing · Form S-8 | SEC EDGAR | -0.40% | +0.80% | |
| LucidSound Introduces LS500 Wireless Gaming Headset, Built for All-Day Comfort and Seamless Play Across Devices | Press release | PR Newswire | -0.40% | +0.80% | |
| Form 10-Q ACCO BRANDS Corp For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -0.39% | +1.28% | |
| ACCO Brands Reports First Quarter Results | Press release | Business Wire | +2.75% | +14.49% | |
| Form 8-K ACCO BRANDS Corp For: Apr 30 | SEC filing · Form 8-K | SEC EDGAR | +2.75% | +14.49% | |
| ACCO Brands Corporation Declares Quarterly Dividend | Press release | Business Wire | +0.31% | +2.16% | |
| ACCO Brands Corporation Announces First Quarter 2026 Earnings Webcast | Press release | Business Wire | +0.92% | +2.13% | |
| Kensington Expands VeriMark Portfolio with New NFC+ USB-C and USB-A FIDO2 Level 2 Security Keys | Press release | Business Wire | -0.00% | +5.37% | |
| Form DEF 14A ACCO BRANDS Corp For: Mar 27 | SEC filing · Form DEF | SEC EDGAR | -1.19% | -1.36% | |
| Form DEFA14A ACCO BRANDS Corp | SEC filing · Form DEFA14A | SEC EDGAR | -1.19% | -1.36% | |
| ACCO Brands Reports Fourth Quarter and Full Year Results and Provides Outlook for 2026 | Press release | Business Wire | -2.80% | +2.80% | |
| Form 10-K ACCO BRANDS Corp For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | -2.30% | -1.89% | |
| Form 8-K ACCO BRANDS Corp For: Mar 09 | SEC filing · Form 8-K | SEC EDGAR | +2.75% | +6.07% | |
| ACCO Brands Corporation Declares Quarterly Dividend | Press release | Business Wire | +0.12% | -0.49% | |
| ACCO Brands Corporation Announces Fourth Quarter and Full Year 2025 Earnings Webcast | Press release | Business Wire | -0.24% | -4.75% | |
| ACCO Brands Announces the Closing of the EPOS Acquisition | Press release | Business Wire | +0.47% | +1.03% | |
| ACCO Brands to Acquire EPOS | Press release | Business Wire | +1.32% | -3.17% | |
| Kensington Thunderbolt 5 Docks Maximize Speed, Storage, and Productivity for Power Users | Press release | Business Wire | +1.16% | +0.29% | |
| Form 10-Q ACCO BRANDS Corp For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.45% | +0.05% | |
| ACCO Brands Reports Third Quarter Results | Press release | Business Wire | -5.92% | -1.05% | |
| Form 8-K ACCO BRANDS Corp For: Oct 30 | SEC filing · Form 8-K | SEC EDGAR | -5.92% | -1.05% | |
| Kensington Announces Flagship Finger-Operated Trackball for Creative Professionals | Press release | Business Wire | +0.00% | +1.24% | |
| ACCO Brands Corporation Declares Quarterly Dividend | Press release | Business Wire | +0.24% | +0.00% | |
| ACCO Brands Corporation Announces Third Quarter 2025 Earnings Webcast | Press release | Business Wire | +1.05% | +0.53% | |
| ACCO Brands Publishes 2024 Environmental, Social and Governance (ESG) Report | Press release | Business Wire | -0.37% | -2.93% | |
| PowerA Expands Nintendo Switch™ 2 Lineup with Officially Licensed Wireless Controllers | Press release | PR Newswire | +0.48% | +0.25% | |
| Kensington Privacy Screen Filters Combat Visual Hacking and Eye Fatigue | Press release | Business Wire | +0.75% | -0.50% | |
| Swingline® Refreshes the Iconic 545 Standard and Tot® Mini Staplers with Vibrant New Color Options that Bring Fresh Energy to any Workspace | Press release | PR Web | -0.12% | +2.13% | |
| Form 10-Q ACCO BRANDS Corp For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | -1.43% | |
| ACCO Brands Reports Second Quarter Results | Press release | Business Wire | -4.85% | -7.28% | |
| Form 8-K ACCO BRANDS Corp For: Jul 29 | SEC filing · Form 8-K | SEC EDGAR | -4.85% | -7.28% | |
| ACCO Brands Corporation Declares Quarterly Dividend | Press release | Business Wire | -0.76% | +1.01% | |
| ACCO Brands Corporation Announces Second Quarter 2025 Earnings Webcast | Press release | Business Wire | +0.26% | -1.57% | |
| Form 8-K ACCO BRANDS Corp For: Jun 27 | SEC filing · Form 8-K | SEC EDGAR | -0.25% | -2.52% | |
| Form 11-K/A ACCO BRANDS Corp For: Dec 31 | SEC filing · Form 11-K | SEC EDGAR | +0.28% | +7.56% | |
| Quartet® Introduces Innovative Anti-Glare InvisaMount® Glass Board & Flip-Top Glass Desktop Pad for Modern Workspaces | Press release | Business Wire | -0.01% | +2.14% | |
| Form 11-K ACCO BRANDS Corp For: Dec 31 | SEC filing · Form 11-K | SEC EDGAR | +0.15% | -0.59% | |
| ACCO Brands Announces Leadership Changes | Press release | Business Wire | +0.26% | -1.05% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the ACCO section they belong to.
More of the dataset.
ACCO earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is Acco Brands Corporation's median reaction calculated?
Every labeled ACCO 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 438 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. 42% of ACCO'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 2026-08-13.
Does ACCO'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.