Automatic Data Processing, Inc. (ADP)
How ADP actually reacts to news — the realized, point-in-time move the market made, measured across 583 labeled events over the last three years with zero look-ahead.
ADP’s median reaction, across the day.
Half of all Automatic Data Processing, Inc. news events land between -0.37% and +0.24% at 30 minutes.
Reaction stats as of 2026-08-18. Reaction = percent move vs. the price at the news timestamp.
Email me when ADP moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to ADP’s baseline. Nothing else.
Get “How ADP reacts to news” as a PDF.
A free one-page summary: ADP’s median reaction to news and the full breakdown by event type — the numbers on this page, in one page.
Recent ADP events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| ADP National Employment Report Preliminary Estimate for August 1, 2026 | Press release | PR Newswire | -0.23% | -0.59% | |
| ADP National Employment Report Preliminary Estimate for July 25, 2026 | Press release | PR Newswire | +0.31% | +0.15% | |
| ADP Declares Regular Quarterly Dividend | Press release | PR Newswire | +0.36% | +0.87% | |
| ADP National Employment Report: Private Sector Employment Increased by 44,000 Jobs in July; Annual Pay was Up 4.4% | Press release | PR Newswire | -1.33% | -1.60% | |
| Form 10-K AUTOMATIC DATA PROCESSIN For: Jun 30 | SEC filing · Form 10-K | SEC EDGAR | +0.36% | +0.87% | |
| ADP Reports Fourth Quarter and Fiscal 2026 Results | Press release | PR Newswire | +0.71% | +3.21% | |
| Form 8-K AUTOMATIC DATA PROCESSIN For: Jul 29 | SEC filing · Form 8-K | SEC EDGAR | +0.71% | +3.21% | |
| ADP National Employment Report Preliminary Estimate for July 11, 2026 | Press release | PR Newswire | +1.49% | +1.85% | |
| ADP National Employment Report Preliminary Estimate for July 4, 2026 | Press release | PR Newswire | +0.84% | -1.74% | |
| ADP National Employment Report Preliminary Estimate for June 27, 2026 | Press release | PR Newswire | +0.19% | +0.60% | |
| ADP Research to Launch Monthly Pay Measure in Canada to Track Wage Growth | Press release | Canada Newswire | -1.23% | -1.56% | |
| ADP National Employment Report Preliminary Estimate for June 20, 2026 | Press release | PR Newswire | +0.72% | +0.49% | |
| ADP National Employment Report: Private Sector Employment Increased by 98,000 Jobs in June; Annual Pay was Up 4.4% | Press release | PR Newswire | +1.42% | +2.97% | |
| ADP to Announce Fourth Quarter Fiscal 2026 Financial Results on July 29, 2026 | Press release | PR Newswire | -0.96% | -0.70% | |
| Form 8-K AUTOMATIC DATA PROCESSIN For: Jun 26 | SEC filing · Form 8-K | SEC EDGAR | -0.96% | -0.70% | |
| ADP National Employment Report Preliminary Estimate for June 6, 2026 | Press release | PR Newswire | -0.91% | -0.13% | |
| ADP National Employment Report Preliminary Estimate for May 30, 2026 | Press release | PR Newswire | -0.29% | -1.20% | |
| ADP National Employment Report Preliminary Estimate for May 23, 2026 | Press release | PR Newswire | +0.84% | +2.21% | |
| ADP National Employment Report: Private Sector Employment Increased by 122,000 Jobs in May; Annual Pay was Up 4.4% | Press release | PR Newswire | -0.52% | -0.49% | |
| ADP National Employment Report Preliminary Estimate for May 9, 2026 | Press release | PR Newswire | -0.48% | -0.45% | |
| ADP National Employment Report Preliminary Estimate for May 2, 2026 | Press release | PR Newswire | +0.36% | -1.12% | |
| ADP National Employment Report Preliminary Estimate for April 25, 2026 | Press release | PR Newswire | +0.26% | +0.01% | |
| ADP to Present at Upcoming Investor Conferences | Press release | PR Newswire | +1.79% | +3.90% | |
| Form 8-K AUTOMATIC DATA PROCESSIN For: May 04 | SEC filing · Form 8-K | SEC EDGAR | -0.55% | +0.41% | |
| ADP National Employment Report: Private Sector Employment Increased by 109,000 Jobs in April; Annual Pay was Up 4.4% | Press release | PR Newswire | -0.44% | -0.58% | |
| ADP Announces Pricing of its Senior Notes Due 2036 | Press release | PR Newswire | +0.12% | +0.23% | |
| Form 10-Q AUTOMATIC DATA PROCESSIN For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -0.26% | +0.17% | |
| ADP Reports Third Quarter Fiscal 2026 Results | Press release | PR Newswire | +1.04% | +4.37% | |
| Form 8-K AUTOMATIC DATA PROCESSIN For: Apr 29 | SEC filing · Form 8-K | SEC EDGAR | +1.04% | +4.37% | |
| ADP National Employment Report Preliminary Estimate for April 28, 2026 | Press release | PR Newswire | -0.23% | -0.34% | |
| ADP National Employment Report Preliminary Estimate for April 4, 2026 | Press release | PR Newswire | +0.01% | +0.05% | |
| ADP Recognizes 2026 HCM Distinction Award Winners at 41st Annual Meeting of the Minds Conference | Press release | PR Newswire | -0.06% | +0.47% | |
| ADP National Employment Report Preliminary Estimate for March 28, 2026 | Press release | PR Newswire | +0.24% | -0.34% | |
| ADP Declares Regular Quarterly Dividend | Press release | PR Newswire | -1.26% | -1.68% | |
| ADP National Employment Report Preliminary Estimate for March 21, 2026 | Press release | PR Newswire | -0.04% | -0.62% | |
| ADP National Employment Report: Private Sector Employment Increased by 62,000 Jobs in March; Annual Pay was Up 4.5% | Press release | PR Newswire | -0.85% | -1.02% | |
| ADP Research: Only 22% of Workers Confident Their Job is Safe from Elimination, Underscoring the Importance of Talent Strategies that Prepare Employees for the Future | Press release | PR Newswire | +0.75% | -2.01% | |
| ADP to Announce Third Quarter Fiscal 2026 Financial Results on April 29, 2026 | Press release | PR Newswire | +0.75% | -2.01% | |
| ADP National Employment Report Preliminary Estimate for March 7, 2026 | Press release | PR Newswire | -1.08% | -2.12% | |
| ADP National Employment Report Preliminary Estimate for February 28, 2026 | Press release | PR Newswire | +1.40% | -0.22% | |
| ADP National Employment Report Preliminary Estimate for February 21, 2026 | Press release | PR Newswire | -1.22% | -2.07% | |
| ADP National Employment Report: Private Sector Employment Increased by 63,000 Jobs in February; Annual Pay was Up 4.5% | Press release | PR Newswire | -0.04% | +0.67% | |
| ADP Marketplace Launches AI Agents to Help Make Work Easier, Smarter | Press release | PR Newswire | +0.04% | +0.78% | |
| ADP National Employment Report Preliminary Estimate for February 7, 2026 | Press release | PR Newswire | -0.10% | -0.02% | |
| ADP National Employment Report Preliminary Estimate for January 31, 2026 | Press release | PR Newswire | +0.42% | +0.31% | |
| Canadian Golf Pro Sudarshan Yellamaraju Joins Team ADP | Press release | Canada Newswire | -0.57% | -3.10% | |
| ADP National Employment Report Preliminary Estimate for January 24, 2026 | Press release | PR Newswire | +0.20% | +0.54% | |
| ADP National Employment Report: Private Sector Employment Increased by 22,000 Jobs in January; Annual Pay was Up 4.5% | Press release | PR Newswire | -1.38% | -0.35% | |
| Form 10-Q AUTOMATIC DATA PROCESSIN For: Dec 31 | SEC filing · Form 10-Q | SEC EDGAR | -0.41% | +0.54% | |
| ADP Reports Second Quarter Fiscal 2026 Results | Press release | PR Newswire | +1.06% | +0.28% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the ADP section they belong to.
More of the dataset.
ADP earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is Automatic Data Processing, Inc.'s median reaction calculated?
Every labeled ADP 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 583 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. 46% of ADP'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 2026-08-18.
Does ADP'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.