Air Transport Services Group, Inc (ATSG)
ATSG moved a median of 0.00% 30 minutes after news, and -0.04% by the close. How ATSG actually reacts to news — the realized, point-in-time move the market made, measured across 232 labeled events over the last three years with zero look-ahead.
ATSG’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -0.03% | 37% | 204 |
| 30-min | 0.00% | 49% | 205 |
| 60-min | 0.00% | 41% | 205 |
| to close | -0.04% | 41% | 205 |
| Middle 50% of ATSG reactions | -0.16% to +0.25% |
|---|---|
| Median reaction (30-min) | 0.00% |
| Measured reactions | 232 |
Half of all Air Transport Services Group, Inc news events land between -0.16% and +0.25% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How ATSG reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst downgrades | 10 | -0.95% | 20% | -0.94% |
| Coverage initiations | 19 | +0.07% | 58% | +0.04% |
| Rating reiterations | 11 | -0.03% | 36% | +0.03% |
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 ATSG ranks against every other measured name →
That’s how ATSG usually reacts — get an email when it moves on news →Email me when ATSG moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to ATSG's baseline. Nothing else.
Recent ATSG events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 10-K/A Air Transport Services For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | — | — | |
| Form 15-12G Air Transport Services | SEC filing · Form 15-12G | SEC EDGAR | — | — | |
| Air Transport Services Group, Inc. Provides Notice of Fundamental Change and Make-Whole Fundamental Change to Holders of its 3.875% Convertible Senior Notes Due 2029 | Press release | Business Wire | — | — | |
| Form 8-K Air Transport Services For: Apr 11 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form S-8 POS Air Transport Services | SEC filing · Form S-8 | SEC EDGAR | — | — | |
| Form 8-K Air Transport Services For: Mar 27 | SEC filing · Form 8-K | SEC EDGAR | +0.13% | +0.27% | |
| ATSG Reports Fourth Quarter 2024 Results | Press release | Business Wire | -0.09% | -0.13% | |
| Form 10-K Air Transport Services For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | -0.09% | -0.13% | |
| Form 8-K Air Transport Services For: Mar 03 | SEC filing · Form 8-K | SEC EDGAR | -0.09% | -0.13% | |
| GA Telesis Engine Services (GATES) USA SPAH Extends Further into CFM and CF6 Aftermarket Services with GE Aerospace On-Wing Offload Support Services | Press release | PR Newswire | +0.00% | -0.11% | |
| ATSG Stockholders Approve Proposed Merger with Stonepeak | Press release | Business Wire | +0.00% | +0.00% | |
| Form 8-K Air Transport Services For: Feb 10 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.00% | |
| Form 8-K Air Transport Services For: Jan 27 | SEC filing · Form 8-K | SEC EDGAR | +0.02% | +0.09% | |
| Form DEFM14A Air Transport Services | SEC filing · Form DEFM14A | SEC EDGAR | -0.14% | +0.04% | |
| ATSG Stock Alert: Halper Sadeh LLC Is Investigating Whether the Sale of Air Transport Services Group, Inc. Is Fair to Shareholders | Press release | Business Wire | +0.18% | +0.23% | |
| Form PREM14A Air Transport Services For: Dec 23 | SEC filing · Form PREM14A | SEC EDGAR | +0.09% | +0.09% | |
| Form DEFA14A Air Transport Services | SEC filing · Form DEFA14A | SEC EDGAR | -0.32% | -0.63% | |
| ATSG Announces Expiration of “Go-Shop” Period | Press release | Business Wire | -0.32% | -0.63% | |
| ATSG Raises $364,000 with Charity Golf Outings | Press release | Business Wire | -0.09% | -0.32% | |
| ATSG Delivers Boeing 767-300 Freighter to CAMEX Airlines | Press release | Business Wire | +0.02% | +0.05% | |
| ATSG Reports Third Quarter 2024 Results | Press release | Business Wire | -0.23% | -0.23% | |
| Form 10-Q Air Transport Services For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.14% | -0.18% | |
| Form 8-K Air Transport Services For: Nov 08 | SEC filing · Form 8-K | SEC EDGAR | -0.23% | -0.23% | |
| Lifshitz Law PLLC Announces Investigations of ATSG, STAF, MPB, and AVTE | Press release | Accesswire | -0.23% | -0.23% | |
| Form DEFA14A Air Transport Services | SEC filing · Form DEFA14A | SEC EDGAR | -0.02% | +0.04% | |
| ALERT: Rowley Law PLLC is Investigating Proposed Acquisition of Air Transport Services Group, Inc. | Press release | PR Newswire | -0.02% | +0.04% | |
| ATSG Stock Alert: Halper Sadeh LLC Is Investigating Whether the Sale of Air Transport Services Group, Inc. Is Fair to Shareholders | Press release | Business Wire | +0.00% | +0.18% | |
| ATSG to be Acquired by Stonepeak for $3.1 Billion | Press release | Business Wire | -0.23% | -0.18% | |
| BRODSKY & SMITH SHAREHOLDER UPDATE: Notifying Investors of the Following Investigations: Air Transport Services Group, Inc. (Nasdaq– ATSG), Micropac Industries, Inc. (OTC - MPAD), Aerovate Therapeutics, Inc. (Nasdaq - AVTE), Outbrain Inc. (Nasdaq - OB) | Press release | GlobeNewswire | -0.02% | +0.04% | |
| Form 8-K Air Transport Services For: Nov 03 | SEC filing · Form 8-K | SEC EDGAR | -0.23% | -0.18% | |
| Form DEFA14A Air Transport Services | SEC filing · Form DEFA14A | SEC EDGAR | -0.02% | +0.04% | |
| ATSG Partners with Purdue Global on Employee Education Benefit | Press release | Business Wire | +0.00% | +0.00% | |
| ATSG to Host Third Quarter 2024 Investor Conference Call | Press release | Business Wire | -0.60% | -1.21% | |
| ATSG Charitable Foundation Announces Support for STEM Education to Inspire Future Aviation Professionals | Press release | Business Wire | +0.16% | -1.91% | |
| Omni Air International Partners with New England Patriots | Press release | Business Wire | +0.00% | -1.21% | |
| Form 10-Q Air Transport Services For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -1.89% | -2.14% | |
| ATSG Delivers Boeing 767-300 Freighter to Euroavia Airlines | Press release | Business Wire | -2.75% | +2.98% | |
| ATSG Reports Second Quarter 2024 Results | Press release | Business Wire | -2.75% | +2.98% | |
| Form 8-K Air Transport Services For: Aug 08 | SEC filing · Form 8-K | SEC EDGAR | -2.75% | +2.98% | |
| ATSG Names Todd France as Chief Commercial Officer | Press release | Business Wire | -0.43% | -5.23% | |
| ATSG Delivers Two Boeing 767s to Georgian Airways | Press release | Business Wire | -0.13% | +0.95% | |
| ATSG to Host Second Quarter 2024 Investor Conference Call | Press release | Business Wire | +0.95% | +1.27% | |
| Air Transport Services Group Hosts Inspiring Future Aviators; Awards Top Camper the Mike & Judith Berger Scholarship | Press release | Business Wire | +0.00% | +0.69% | |
| ATSG Announces Signed Lease Agreements for Two 767-300 Freighter Aircraft to My Freighter | Press release | Business Wire | +1.12% | -1.96% | |
| ATSG Recognizes Six Scholarship Recipients | Press release | Business Wire | -0.20% | +4.69% | |
| Form 8-K Air Transport Services For: Jun 03 | SEC filing · Form 8-K | SEC EDGAR | -0.08% | -2.37% | |
| ATSG Announces Executive Leadership Succession | Press release | Business Wire | -1.13% | -5.08% | |
| Form 8-K Air Transport Services For: May 22 | SEC filing · Form 8-K | SEC EDGAR | -0.07% | +0.52% | |
| ATSG Holds Annual Meeting of Stockholders | Press release | Business Wire | -1.52% | -3.83% | |
| Form 8-K/A Air Transport Services For: May 06 | SEC filing · Form 8-K | SEC EDGAR | +0.38% | -3.61% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the ATSG section they belong to.
Where else ATSG is measured.
ATSG earnings → · Analyst actions → · SEC filings →
Other Industrials names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Barrett Business Services, Inc. (BBSI) | 233 | 0.00% | 48% |
| Ballard Power Systems, Inc. - Common Shares (BLDP) | 233 | +0.40% | 53% |
| Graham Corporation (GHM) | 231 | -0.29% | 37% |
| Luxfer Holdings PLC Ordinary Shares (LXFR) | 230 | +0.09% | 57% |
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.
All Industrials names, measured the same way →
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Every name we’ve measured, in one place.
How the numbers are made.
How is Air Transport Services Group, Inc's median reaction calculated?
Every labeled ATSG 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 232 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 ATSG'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 ATSG'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.