ACI Worldwide, Inc. (ACIW)
ACIW moved a median of +0.07% 30 minutes after news, and -0.07% by the close. How ACIW actually reacts to news — the realized, point-in-time move the market made, measured across 339 labeled events over the last three years with zero look-ahead.
ACIW’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -0.02% | 48% | 339 |
| 30-min | +0.07% | 53% | 339 |
| 60-min | -0.02% | 49% | 339 |
| to close | -0.07% | 48% | 337 |
| Middle 50% of ACIW reactions | -0.63% to +0.68% |
|---|---|
| Median reaction (30-min) | +0.07% |
| Measured reactions | 339 |
Half of all ACI Worldwide, Inc. news events land between -0.63% and +0.68% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How ACIW reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 20 | +0.02% | 50% | +0.18% |
| Analyst downgrades | 12 | +0.01% | 50% | -1.08% |
| Rating reiterations | 28 | +0.13% | 64% | -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 ACIW ranks against every other measured name →
That’s how ACIW usually reacts — get an email when it moves on news →Email me when ACIW moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to ACIW's baseline. Nothing else.
Recent ACIW events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Federal Home Loan Bank of Cincinnati Moves Member Payment Processing to ACI Connetic | Press release | Business Wire | +0.10% | +0.76% | |
| ACI Worldwide and Cognizant Demonstrate Strong Card Processing Performance on Amazon Web Services, Inc. (AWS) | Press release | Business Wire | -1.05% | -0.04% | |
| Solaris Goes Live on ACI Worldwide’s ACI Connetic for SEPA Instant Payments | Press release | Business Wire | +1.29% | +0.69% | |
| ACI Worldwide Extends ACI Connetic to Support Payments Orchestrated Through Swift’s Ledger | Press release | Business Wire | -1.19% | -2.83% | |
| Nearly 60% of US Adults Can't Cover a $1,000 Emergency Expense, Driving Demand for Greater Control and Flexibility in Bill Payment, Finds ACI Speedpay Pulse Report | Press release | Business Wire | -1.19% | -2.03% | |
| ACI Worldwide Expands ACI Connetic with Advanced Financial Messaging Technology to Power Intelligent, Future-Ready Payments | Press release | Business Wire | -1.01% | -0.70% | |
| Only 7% of Fashion Shoppers Trust AI to Buy for Them Today, Showing Merchants Must Build Confidence in Agentic Commerce | Press release | Business Wire | +0.09% | +1.88% | |
| ACI Worldwide to Add Microservices Card Switching to ACI Connetic for Cards via Acquisition of Cranium Ventures | Press release | Business Wire | +0.63% | -2.73% | |
| Retailers Rank Richer Payments Data as the Top Benefit of Payments Orchestration, New ACI Worldwide Research Finds | Press release | Business Wire | -0.57% | +0.74% | |
| Federal Home Loan Bank of Atlanta Selects ACI Connetic to Modernize Its Member Payment Operations | Press release | Business Wire | +0.50% | +2.26% | |
| Inter Pag Selects ACI Worldwide to Advance Intelligent Payments Orchestration in Brazil | Press release | Business Wire | -0.47% | +0.60% | |
| ACI Worldwide Reports Strong Second Quarter 2026 Results and Raises Full-Year Guidance | Press release | Business Wire | +1.31% | +4.39% | |
| Form 10-Q ACI WORLDWIDE, INC. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.50% | +1.65% | |
| Form 8-K ACI WORLDWIDE, INC. For: Aug 06 | SEC filing · Form 8-K | SEC EDGAR | +1.31% | +4.39% | |
| ACI Worldwide to Participate in Upcoming Investor Conferences | Press release | Business Wire | -0.27% | -1.53% | |
| ACI Worldwide and dLocal Bring Latin America's Leading Local Payment Methods to Global Merchants | Press release | Business Wire | +0.97% | +2.29% | |
| ACI Worldwide to Report Second Quarter 2026 Financial Results | Press release | Business Wire | +1.79% | +1.76% | |
| Six in Ten UK Consumers Would Stop Using an AI Shopping Agent After One Mistake, ACI Survey Finds | Press release | Business Wire | -0.32% | +0.26% | |
| FIFA World Cup: Fraud Attempts Surged More Than Threefold at Past World Cups, ACI Worldwide Finds | Press release | Business Wire | -1.54% | -1.17% | |
| ACI Worldwide Powers Rabobank’s Wero Instant Payments, Advancing Europe’s Real-Time Payments Transformation | Press release | Business Wire | -0.98% | +1.18% | |
| ACI Worldwide and EPI to Power Instant Payments in Europe | Press release | Business Wire | -0.12% | -0.82% | |
| ACI Worldwide Powers Next-Generation PSP Expansion in Africa with Kwik Payments Go-Live | Press release | Business Wire | -1.15% | +2.28% | |
| Europe’s Payments Leaders Gather in London as Control, Fraud and AI Reshape the Industry | Press release | Business Wire | -0.25% | +3.95% | |
| Form 8-K ACI WORLDWIDE, INC. For: Jun 02 | SEC filing · Form 8-K | SEC EDGAR | -2.11% | -4.70% | |
| UBX Tanzania Deepens Partnership with ACI Worldwide to Power the Next Phase of the Nation’s Digital Economy | Press release | Business Wire | -2.20% | -0.68% | |
| ACI Worldwide and Security Bank Philippines Set New Benchmark for Enterprise-wide Payments Modernization | Press release | Business Wire | +0.16% | +0.85% | |
| ACI Worldwide to Attend Upcoming Investor Conferences | Press release | Business Wire | -1.40% | -1.75% | |
| ACI Worldwide Reports Strong First Quarter 2026 Results and Raises Full-Year Guidance | Press release | Business Wire | -0.97% | -1.37% | |
| Form 10-Q ACI WORLDWIDE, INC. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.37% | +1.59% | |
| Form 8-K ACI WORLDWIDE, INC. For: May 07 | SEC filing · Form 8-K | SEC EDGAR | -0.97% | -1.37% | |
| Peru, Chile and Argentina Enter a New Phase of Growth Driven by Real-Time Payments, ACI Worldwide Report Finds | Press release | Business Wire | +0.09% | -0.45% | |
| ACI Worldwide and Kinexys by J.P. Morgan Collaborate to Mitigate Global Real-Time Payments Fraud | Press release | Business Wire | -0.85% | +2.35% | |
| As Multi-Rail Complexity Grows, ACI Worldwide Delivers One Cloud-Native Platform for Eight U.S. Networks | Press release | Business Wire | -2.64% | -3.19% | |
| Form ARS ACI WORLDWIDE, INC. For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +1.43% | +2.38% | |
| Form DEF 14A ACI WORLDWIDE, INC. For: Jun 02 | SEC filing · Form DEF | SEC EDGAR | +1.43% | +2.38% | |
| Form DEFA14A ACI WORLDWIDE, INC. | SEC filing · Form DEFA14A | SEC EDGAR | +1.43% | +2.38% | |
| ACI Worldwide to Report First Quarter 2026 Financial Results | Press release | Business Wire | +0.30% | -0.02% | |
| Nearly One in Three Gen Z Adults Report Not Filing Taxes as Digital Divide Widens Across Generations, ACI Worldwide Survey Finds | Press release | Business Wire | +0.74% | +1.90% | |
| Colombia’s Bre-B Hits More than 500 Million Transactions as ACI Worldwide and Banco de la República Take the Stage at Fintech Americas 2026 | Press release | Business Wire | +0.84% | +1.53% | |
| Bill Pay Industry Nears Inflection Point as Only 26% of Organizations Trust Legacy Systems to Meet Future Needs, ACI Speedpay Study Finds | Press release | Business Wire | +1.27% | -1.29% | |
| ACI Worldwide Launches Card Payments on Cloud-Native ACI Connetic, Advancing Unified Payments Platform | Press release | Business Wire | -1.63% | +0.02% | |
| ACI Worldwide, Inc. Reports Double-Digit Revenue Growth for Full Year Ended December 31, 2025 | Press release | Business Wire | +0.32% | -1.07% | |
| Form 10-K ACI WORLDWIDE, INC. For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.28% | -0.07% | |
| Form 8-K ACI WORLDWIDE, INC. For: Feb 23 | SEC filing · Form 8-K | SEC EDGAR | +0.32% | -1.07% | |
| ACI Worldwide Executive Philip Bruno to Address the Rise of Agentic Commerce at MIT Sloan Fintech Conference | Press release | Business Wire | +0.20% | +0.82% | |
| ACI Connetic Accelerates Global Adoption as UK Banks Can Now Unite SWIFT, CHAPS and Faster Payments on One Cloud-Native Platform | Press release | Business Wire | +1.31% | +0.67% | |
| ACI Worldwide, Inc. To Release Financial Results for the Quarter and Year Ending December 31, 2025 | Press release | Business Wire | -0.33% | +4.36% | |
| ACI Worldwide Report: Global Refund Volumes Surge 18% as Retailers Tighten Returns | Press release | Business Wire | -1.00% | -7.60% | |
| Form 8-K ACI WORLDWIDE, INC. For: Jan 13 | SEC filing · Form 8-K | SEC EDGAR | +0.04% | +0.02% | |
| ACI Worldwide Adds Paze ? Online Checkout from Early Warning Services to Pay.On Platform, Expanding Wallet Options for U.S. Consumers | Press release | PR Newswire | -0.11% | +1.36% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the ACIW section they belong to.
Where else ACIW is measured.
ACIW earnings → · Analyst actions → · SEC filings →
Other Technology names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| FormFactor, Inc. (FORM) | 343 | +0.14% | 54% |
| Sonos, Inc. (SONO) | 341 | -0.19% | 44% |
| Arlo Technologies, Inc. (ARLO) | 339 | +0.09% | 54% |
| Power Integrations, Inc. (POWI) | 338 | -0.09% | 39% |
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 ACI Worldwide, Inc.'s median reaction calculated?
Every labeled ACIW 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 339 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. 53% of ACIW'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 ACIW'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.