ACNB Corporation (ACNB)
How ACNB actually reacts to news — the realized, point-in-time move the market made, measured across 358 labeled events over the last three years with zero look-ahead.
ACNB’s median reaction, across the day.
Half of all ACNB Corporation news events land between -0.38% and +0.73% at 30 minutes.
Reaction stats as of 2026-08-13. Reaction = percent move vs. the price at the news timestamp.
Email me when ACNB moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to ACNB’s baseline. Nothing else.
Get “How ACNB reacts to news” as a PDF.
A free one-page summary: ACNB’s median reaction to news and the full breakdown by event type — the numbers on this page, in one page.
Recent ACNB events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 10-Q ACNB CORP For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | — | +0.54% | |
| ACNB Corporation Announces Third Quarter of 2026 Cash Dividend | Press release | GlobeNewswire | -0.18% | -1.10% | |
| Form 8-K ACNB CORP For: Jul 28 | SEC filing · Form 8-K | SEC EDGAR | -0.18% | -1.10% | |
| ACNB Corporation Reports Record 2026 Second Quarter Financial Results | Press release | GlobeNewswire | -0.12% | +3.44% | |
| Form 8-K ACNB CORP For: Jul 23 | SEC filing · Form 8-K | SEC EDGAR | -0.12% | +3.44% | |
| Form S-8 ACNB CORP | SEC filing · Form S-8 | SEC EDGAR | — | +0.47% | |
| Form 10-Q ACNB CORP For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | — | -0.69% | |
| Form 8-K ACNB CORP For: May 05 | SEC filing · Form 8-K | SEC EDGAR | +0.23% | -0.39% | |
| ACNB Corporation Announces Second Quarter of 2026 Regular and Special Cash Dividends and New Share Repurchase Authorization | Press release | GlobeNewswire | -0.60% | -4.29% | |
| Form 8-K ACNB CORP For: Apr 28 | SEC filing · Form 8-K | SEC EDGAR | -0.60% | -4.29% | |
| ACNB Corporation Reports 2026 First Quarter Financial Results | Press release | GlobeNewswire | — | +0.48% | |
| Form 8-K ACNB CORP For: Apr 23 | SEC filing · Form 8-K | SEC EDGAR | -0.28% | +0.38% | |
| Form ARS ACNB CORP For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | -0.24% | +0.16% | |
| Form DEF 14A ACNB CORP For: May 05 | SEC filing · Form DEF | SEC EDGAR | +0.32% | +0.47% | |
| Form D ACNB CORP | SEC filing · Form D | SEC EDGAR | — | +0.95% | |
| Form PRE 14A ACNB CORP For: May 05 | SEC filing · Form PRE | SEC EDGAR | +1.36% | +0.00% | |
| Form 8-K ACNB CORP For: Mar 13 | SEC filing · Form 8-K | SEC EDGAR | -0.63% | -1.74% | |
| Form 10-K ACNB CORP For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.00% | -0.79% | |
| Form 8-K ACNB CORP For: Mar 12 | SEC filing · Form 8-K | SEC EDGAR | +0.12% | +0.12% | |
| Form 8-K ACNB CORP For: Feb 27 | SEC filing · Form 8-K | SEC EDGAR | — | -0.36% | |
| Form 8-K ACNB CORP For: Feb 19 | SEC filing · Form 8-K | SEC EDGAR | +1.96% | +1.57% | |
| ACNB Corporation Announces First Quarter of 2026 Cash Dividend | Press release | GlobeNewswire | — | +2.54% | |
| Form 8-K ACNB CORP For: Jan 27 | SEC filing · Form 8-K | SEC EDGAR | — | +2.54% | |
| ACNB Corporation Reports Fourth Quarter and Record 2025 Financial Results | Press release | GlobeNewswire | +0.43% | +0.61% | |
| Form 8-K ACNB CORP For: Jan 22 | SEC filing · Form 8-K | SEC EDGAR | +0.43% | +0.61% | |
| Form 8-K ACNB CORP For: Dec 02 | SEC filing · Form 8-K | SEC EDGAR | — | -0.49% | |
| Form 8-K ACNB CORP For: Nov 10 | SEC filing · Form 8-K | SEC EDGAR | -1.24% | +0.84% | |
| Form 10-Q ACNB CORP For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | +1.10% | |
| ACNB Corporation Reports 2025 Third Quarter Financial Results | Press release | GlobeNewswire | +0.42% | +2.03% | |
| Form 8-K ACNB CORP For: Oct 23 | SEC filing · Form 8-K | SEC EDGAR | +0.42% | +2.03% | |
| ACNB Corporation Announces Fourth Quarter Cash Dividend | Press release | GlobeNewswire | +0.00% | +1.42% | |
| Form 8-K ACNB CORP For: Oct 21 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +1.42% | |
| Form 8-K ACNB CORP For: Oct 15 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -0.33% | |
| Form S-3D ACNB CORP | SEC filing · Form S-3D | SEC EDGAR | +0.00% | -0.22% | |
| Form 10-Q ACNB CORP For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | +0.41% | |
| ACNB Corporation Announces Third Quarter Cash Dividend | Press release | GlobeNewswire | — | +0.14% | |
| ACNB Corporation Reports 2025 Second Quarter Financial Results | Press release | GlobeNewswire | -0.85% | +0.14% | |
| Form 8-K ACNB CORP For: Jul 24 | SEC filing · Form 8-K | SEC EDGAR | — | +0.14% | |
| Form 8-K ACNB CORP For: Jul 22 | SEC filing · Form 8-K | SEC EDGAR | — | -0.58% | |
| ACNB Corporation Announces Common Stock Repurchase Program | Press release | GlobeNewswire | -0.42% | +1.08% | |
| Form 8-K ACNB CORP For: Jun 17 | SEC filing · Form 8-K | SEC EDGAR | -0.42% | +1.08% | |
| Form 8-K ACNB CORP For: May 30 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -0.41% | |
| Form 10-Q ACNB CORP For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | — | -0.19% | |
| Form 8-K ACNB CORP For: May 06 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +1.30% | |
| ACNB Corporation Reports 2025 First Quarter Financial Results | Press release | GlobeNewswire | — | -0.03% | |
| Form 8-K ACNB CORP For: Apr 24 | SEC filing · Form 8-K | SEC EDGAR | -1.43% | -1.46% | |
| ACNB Corporation Announces Second Quarter Cash Dividend | Press release | GlobeNewswire | -0.82% | +0.07% | |
| Form 8-K ACNB CORP For: Apr 22 | SEC filing · Form 8-K | SEC EDGAR | -0.82% | +0.07% | |
| Form 8-K/A ACNB CORP For: Feb 01 | SEC filing · Form 8-K | SEC EDGAR | -0.03% | +4.21% | |
| Form ARS ACNB CORP For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +0.46% | +0.61% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the ACNB section they belong to.
More of the dataset.
ACNB earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is ACNB Corporation's median reaction calculated?
Every labeled ACNB 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 358 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. 59% of ACNB'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 ACNB'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.