Acadia Healthcare Company, Inc. (ACHC)
How ACHC actually reacts to news — the realized, point-in-time move the market made, measured across 1,160 labeled events over the last three years with zero look-ahead.
ACHC’s median reaction, across the day.
Half of all Acadia Healthcare Company, Inc. news events land between -0.61% and +0.59% at 30 minutes.
Reaction stats as of 2026-08-13. Reaction = percent move vs. the price at the news timestamp.
Email me when ACHC moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to ACHC’s baseline. Nothing else.
Get “How ACHC reacts to news” as a PDF.
A free one-page summary: ACHC’s median reaction to news and the full breakdown by event type — the numbers on this page, in one page.
Recent ACHC events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Did Acadia Healthcare Company, Inc. Insiders Breach their Fiduciary Duties to Shareholders? | Press release | PR Newswire | -0.27% | -0.74% | |
| Acadia Healthcare Announces Second Quarter 2026 Results and Updates Full Year 2026 Financial and Cash Flow Guidance | Press release | Business Wire | -5.06% | -16.92% | |
| Form 10-Q Acadia Healthcare Compan For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -5.06% | -16.92% | |
| Form 8-K Acadia Healthcare Compan For: Jul 28 | SEC filing · Form 8-K | SEC EDGAR | -5.06% | -16.92% | |
| Acadia Healthcare Announces Date for Second Quarter 2026 Earnings Release | Press release | Business Wire | -0.55% | -1.57% | |
| Form 8-K Acadia Healthcare Compan For: May 18 | SEC filing · Form 8-K | SEC EDGAR | -2.54% | -0.20% | |
| Form S-8 Acadia Healthcare Compan | SEC filing · Form S-8 | SEC EDGAR | -0.96% | +3.79% | |
| Form 8-K Acadia Healthcare Compan For: May 06 | SEC filing · Form 8-K | SEC EDGAR | +0.99% | -2.63% | |
| Form 10-Q Acadia Healthcare Compan For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.70% | -4.55% | |
| Acadia Healthcare Announces First Quarter 2026 Results | Press release | Business Wire | +0.70% | -4.55% | |
| Form 8-K Acadia Healthcare Compan For: Apr 29 | SEC filing · Form 8-K | SEC EDGAR | +0.70% | -4.55% | |
| National Veterinary Associates Appoints Todd S. Young as Chief Financial Officer | Press release | Business Wire | -2.54% | +2.09% | |
| Acadia Healthcare Appoints David Duckworth as Interim Chief Financial Officer | Press release | Business Wire | -2.54% | +2.09% | |
| Form 8-K Acadia Healthcare Compan For: Apr 22 | SEC filing · Form 8-K | SEC EDGAR | -2.54% | +2.09% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages Acadia Healthcare Company, Inc. (ACHC) Shareholders to Inquire about Securities Investigation | Press release | ACCESS Newswire | +0.29% | +0.15% | |
| Acadia Healthcare Announces Date for First Quarter 2026 Earnings Release | Press release | Business Wire | +0.35% | +2.57% | |
| Bronstein, Gewirtz & Grossman, LLC Is Investigating Acadia Healthcare Company, Inc. (ACHC) And Encourages Shareholders to Connect | Press release | ACCESS Newswire | — | +0.00% | |
| Bronstein, Gewirtz & Grossman, LLC Initiates an Investigation into Allegations Against Acadia Healthcare Company, Inc. (ACHC) And Encourages Shareholders to Reach Out | Press release | ACCESS Newswire | +0.38% | +4.05% | |
| Bronstein, Gewirtz & Grossman, LLC Announces an Investigation Against Acadia Healthcare Company, Inc. (ACHC) and Encourages Shareholders to Learn More About the Investigation | Press release | ACCESS Newswire | -0.54% | +0.08% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages Acadia Healthcare Company, Inc. (ACHC) Stockholders to Inquire about Securities Investigation | Press release | ACCESS Newswire | +0.61% | +1.25% | |
| Acadia Healthcare Company, Inc. (ACHC) Investigation: Bronstein, Gewirtz & Grossman, LLC Encourages Shareholders to Contact the Firm to Learn More About the Investigation | Press release | ACCESS Newswire | +0.16% | -2.09% | |
| Form ARS Acadia Healthcare Compan For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +0.06% | -1.04% | |
| Form DEF 14A Acadia Healthcare Compan For: May 06 | SEC filing · Form DEF | SEC EDGAR | +0.06% | -1.04% | |
| Form DEFA14A Acadia Healthcare Compan | SEC filing · Form DEFA14A | SEC EDGAR | +0.06% | -1.04% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages Acadia Healthcare Company, Inc. (ACHC) Stockholders to Inquire about Securities Investigation | Press release | ACCESS Newswire | +0.30% | +0.96% | |
| Bronstein, Gewirtz & Grossman, LLC Initiates an Investigation into Allegations Against Acadia Healthcare Company, Inc. (ACHC) And Encourages Stockholders to Reach Out | Press release | ACCESS Newswire | -0.37% | -1.23% | |
| Bronstein, Gewirtz & Grossman, LLC Is Investigating Acadia Healthcare Company, Inc. (ACHC) And Encourages Stockholders to Connect | Press release | ACCESS Newswire | +0.31% | -2.83% | |
| Acadia Healthcare Company, Inc. (ACHC) Investigation: Bronstein, Gewirtz & Grossman, LLC Encourages Stockholders to Contact the Firm to Learn More About the Investigation | Press release | ACCESS Newswire | +0.77% | -2.19% | |
| Acadia Healthcare Appoints Daniel Cancelmi to Board of Directors | Press release | Business Wire | -0.56% | -2.61% | |
| Bronstein, Gewirtz & Grossman, LLC Announces an Investigation Against Acadia Healthcare Company, Inc. (ACHC) and Encourages Stockholders to Learn More About the Investigation | Press release | ACCESS Newswire | +0.39% | +0.10% | |
| Form 8-K Acadia Healthcare Compan For: Mar 09 | SEC filing · Form 8-K | SEC EDGAR | -0.56% | -2.61% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages Acadia Healthcare Company, Inc. (ACHC) Investors to Inquire about Securities Investigation | Press release | ACCESS Newswire | +0.18% | +0.82% | |
| Form 10-K Acadia Healthcare Compan For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.29% | +6.06% | |
| Acadia Healthcare Announces Fourth Quarter and 2025 Results | Press release | Business Wire | +4.14% | +1.41% | |
| Form 8-K Acadia Healthcare Compan For: Feb 25 | SEC filing · Form 8-K | SEC EDGAR | +4.14% | +1.41% | |
| Acadia Healthcare to Participate in March Investor Conferences | Press release | Business Wire | +0.13% | +1.34% | |
| Acadia Healthcare Announces Date for Fourth Quarter and Year-End 2025 Earnings Release | Press release | Business Wire | +0.81% | -0.44% | |
| Form 8-K Acadia Healthcare Compan For: Jan 20 | SEC filing · Form 8-K | SEC EDGAR | +1.95% | +2.28% | |
| Acadia Healthcare Appoints Debbie Osteen as Chief Executive Officer | Press release | Business Wire | +3.81% | +15.58% | |
| Form 8-K Acadia Healthcare Compan For: Jan 19 | SEC filing · Form 8-K | SEC EDGAR | +3.81% | +15.58% | |
| Form 8-K Acadia Healthcare Compan For: Jan 13 | SEC filing · Form 8-K | SEC EDGAR | -1.58% | -5.71% | |
| Acadia Healthcare to Participate in 44th Annual J.P. Morgan Healthcare Conference | Press release | Business Wire | -0.38% | +2.17% | |
| Bronstein, Gewirtz & Grossman, LLC Is Investigating Acadia Healthcare Company, Inc. (ACHC) And Encourages Shareholders to Connect | Press release | ACCESS Newswire | +0.21% | +0.21% | |
| Bronstein, Gewirtz & Grossman, LLC Initiates an Investigation into Allegations Against Acadia Healthcare Company, Inc. (ACHC) And Encourages Shareholders to Reach Out | Press release | ACCESS Newswire | -2.06% | -0.07% | |
| Bronstein, Gewirtz & Grossman, LLC Announces an Investigation Against Acadia Healthcare Company, Inc. (ACHC) and Encourages Shareholders to Learn More About the Investigation | Press release | ACCESS Newswire | -0.24% | -0.71% | |
| Acadia Healthcare Company, Inc. (ACHC) Investigation: Bronstein, Gewirtz & Grossman, LLC Encourages Shareholders to Contact the Firm to Learn More About the Investigation | Press release | ACCESS Newswire | +0.00% | -1.12% | |
| Bronstein, Gewirtz & Grossman, LLC Is Investigating Acadia Healthcare Company, Inc. (ACHC) And Encourages Shareholders to Connect | Press release | ACCESS Newswire | +0.17% | +0.59% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages Acadia Healthcare Company, Inc. (ACHC) Stockholders to Inquire about Securities Investigation | Press release | ACCESS Newswire | +0.10% | +1.30% | |
| Bronstein, Gewirtz & Grossman, LLC Initiates an Investigation into Allegations Against Acadia Healthcare Company, Inc. (ACHC) And Encourages Shareholders to Reach Out | Press release | ACCESS Newswire | +0.10% | +1.30% | |
| Bronstein, Gewirtz & Grossman, LLC Announces an Investigation Against Acadia Healthcare Company, Inc. (ACHC) and Encourages Shareholders to Learn More About the Investigation | Press release | ACCESS Newswire | -0.27% | -1.43% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the ACHC section they belong to.
More of the dataset.
ACHC earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is Acadia Healthcare Company, Inc.'s median reaction calculated?
Every labeled ACHC 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 1,160 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. 49% of ACHC'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 ACHC'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.