Haynes International, Inc. (HAYN)
HAYN moved a median of -0.06% 30 minutes after news, and -0.08% by the close. How HAYN actually reacts to news — the realized, point-in-time move the market made, measured across 139 labeled events over the last three years with zero look-ahead.
HAYN’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 30% | 102 |
| 30-min | -0.06% | 35% | 113 |
| 60-min | -0.10% | 40% | 113 |
| to close | -0.08% | 36% | 113 |
| Middle 50% of HAYN reactions | -0.45% to +0.20% |
|---|---|
| Median reaction (30-min) | -0.06% |
| Measured reactions | 139 |
Half of all Haynes International, Inc. news events land between -0.45% and +0.20% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
Email me when HAYN moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to HAYN's baseline. Nothing else.
Recent HAYN events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 15-12G HAYNES INTERNATIONAL | SEC filing · Form 15-12G | SEC EDGAR | — | — | |
| Form 8-K HAYNES INTERNATIONAL For: Nov 21 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form S-8 POS HAYNES INTERNATIONAL | SEC filing · Form S-8 | SEC EDGAR | — | — | |
| Form 8-K HAYNES INTERNATIONAL For: Nov 15 | SEC filing · Form 8-K | SEC EDGAR | -0.02% | -0.05% | |
| Form 10-Q HAYNES INTERNATIONAL For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.25% | +0.59% | |
| Form 8-K HAYNES INTERNATIONAL For: Aug 01 | SEC filing · Form 8-K | SEC EDGAR | +0.25% | +0.59% | |
| Haynes International, Inc. Reports Third Quarter Fiscal 2024 Financial Results | Press release | GlobeNewswire | +0.25% | +0.59% | |
| Form 8-K HAYNES INTERNATIONAL For: Jun 27 | SEC filing · Form 8-K | SEC EDGAR | +0.05% | -0.14% | |
| Form 8-K HAYNES INTERNATIONAL For: Jun 28 | SEC filing · Form 8-K | SEC EDGAR | +0.05% | -0.14% | |
| Haynes International Inc. Names Marlin C. Losch III Chief Operating Officer | Press release | GlobeNewswire | +0.05% | -0.14% | |
| CFIUS Approval Obtained for the Planned Merger of North American Stainless, Inc. and Haynes International, Inc. | Press release | GlobeNewswire | +0.05% | -0.14% | |
| Form SD HAYNES INTERNATIONAL | SEC filing · Form SD | SEC EDGAR | -0.34% | -0.53% | |
| Form 8-K HAYNES INTERNATIONAL For: May 14 | SEC filing · Form 8-K | SEC EDGAR | -0.03% | -0.22% | |
| Form 10-Q HAYNES INTERNATIONAL For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -0.22% | -0.14% | |
| Form 8-K HAYNES INTERNATIONAL For: May 09 | SEC filing · Form 8-K | SEC EDGAR | -0.22% | -0.14% | |
| Haynes International, Inc. Reports Second Quarter Fiscal 2024 Financial Results | Press release | GlobeNewswire | -0.22% | -0.14% | |
| Form 8-K HAYNES INTERNATIONAL For: May 01 | SEC filing · Form 8-K | SEC EDGAR | -0.17% | -0.72% | |
| Form 8-K HAYNES INTERNATIONAL For: Apr 16 | SEC filing · Form 8-K | SEC EDGAR | -0.03% | -0.02% | |
| Form 8-K HAYNES INTERNATIONAL For: Apr 10 | SEC filing · Form 8-K | SEC EDGAR | +0.07% | +0.02% | |
| Form DEFA14A HAYNES INTERNATIONAL | SEC filing · Form DEFA14A | SEC EDGAR | +0.07% | +0.02% | |
| Form 8-K HAYNES INTERNATIONAL For: Mar 18 | SEC filing · Form 8-K | SEC EDGAR | +0.18% | +0.76% | |
| Form DEFA14A HAYNES INTERNATIONAL | SEC filing · Form DEFA14A | SEC EDGAR | +0.18% | +0.76% | |
| Form DEFM14A HAYNES INTERNATIONAL | SEC filing · Form DEFM14A | SEC EDGAR | -0.13% | -0.22% | |
| Form 8-K HAYNES INTERNATIONAL For: Mar 12 | SEC filing · Form 8-K | SEC EDGAR | +0.40% | +0.05% | |
| Form DEFA14A HAYNES INTERNATIONAL | SEC filing · Form DEFA14A | SEC EDGAR | +0.40% | +0.05% | |
| SHAREHOLDER UPDATE: Halper Sadeh LLC Investigates HAYN, EVBG | Press release | GlobeNewswire | +0.02% | +0.20% | |
| SHAREHOLDER UPDATE: Halper Sadeh LLC Investigates MDC, INBX, KAMN, HAYN | Press release | PR Newswire | -0.01% | -0.14% | |
| Form PREM14A HAYNES INTERNATIONAL For: Mar 04 | SEC filing · Form PREM14A | SEC EDGAR | +0.35% | -0.22% | |
| SHAREHOLDER UPDATE: Halper Sadeh LLC Investigates HAYN, KNTE, SCTL | Press release | PR Newswire | -0.13% | -0.60% | |
| Form 8-K HAYNES INTERNATIONAL For: Feb 21 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.00% | |
| INVESTIGATION ALERT: Halper Sadeh LLC Investigates HAYN, WAVD, BBAI, FGH | Press release | Accesswire | -0.01% | -0.39% | |
| INVESTIGATION ALERT: Halper Sadeh LLC Investigates HAYN, EVBG, CTLT | Press release | Accesswire | +0.45% | -0.17% | |
| Form 10-Q HAYNES INTERNATIONAL For: Dec 31 | SEC filing · Form 10-Q | SEC EDGAR | -0.05% | +0.84% | |
| Form 8-K HAYNES INTERNATIONAL For: Feb 04 | SEC filing · Form 8-K | SEC EDGAR | -0.13% | +0.39% | |
| Form 8-K HAYNES INTERNATIONAL For: Feb 05 | SEC filing · Form 8-K | SEC EDGAR | -0.13% | +0.39% | |
| Form DEFA14A HAYNES INTERNATIONAL | SEC filing · Form DEFA14A | SEC EDGAR | -0.13% | +0.39% | |
| HAYN Alert: Monsey Firm of Wohl & Fruchter Investigating Fairness of the Sale of Haynes International to North American Stainless | Press release | GlobeNewswire | +0.00% | +0.84% | |
| HAYN Stock Alert: Halper Sadeh LLC Is Investigating Whether the Sale of Haynes International, Inc. Is Fair to Shareholders | Press release | Business Wire | -0.13% | +0.39% | |
| Haynes International Announces Agreement to be Acquired by North American Stainless, a Wholly Owned Subsidiary of Acerinox | Press release | GlobeNewswire | -0.13% | +0.39% | |
| Haynes International, Inc. Reports First Quarter Fiscal 2024 Financial Results | Press release | GlobeNewswire | -0.13% | +0.39% | |
| Haynes International, Inc. to Host First Quarter Fiscal Year 2024 Conference Call | Press release | GlobeNewswire | -0.02% | -0.09% | |
| Form ARS HAYNES INTERNATIONAL For: Sep 30 | SEC filing · Form ARS | SEC EDGAR | +0.00% | +0.23% | |
| Form DEF 14A HAYNES INTERNATIONAL For: Feb 21 | SEC filing · Form DEF | SEC EDGAR | +0.00% | +0.23% | |
| Form DEFA14A HAYNES INTERNATIONAL | SEC filing · Form DEFA14A | SEC EDGAR | +0.00% | +0.23% | |
| Form 10-K HAYNES INTERNATIONAL For: Sep 30 | SEC filing · Form 10-K | SEC EDGAR | -0.55% | +0.98% | |
| Form 8-K HAYNES INTERNATIONAL For: Nov 16 | SEC filing · Form 8-K | SEC EDGAR | -0.55% | +0.98% | |
| Haynes International, Inc. Reports Fourth Quarter Fiscal 2023 Financial Results and Year End Highlights | Press release | GlobeNewswire | -0.55% | +0.98% | |
| Haynes International, Inc. To Host Fourth Quarter And Fiscal Year End Conference Call | Press release | GlobeNewswire | +0.58% | +0.84% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the HAYN section they belong to.
Where else HAYN is measured.
HAYN earnings → · Analyst actions → · SEC filings →
Other Industrials names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| NOVUME SOLUTIONS (NVMM) | 140 | 0.00% | 32% |
| OPES ACQUISITION CORP UNITS (OPESU) | 140 | 0.00% | 39% |
| Seaboard Corporation (SEB) | 139 | +0.07% | 57% |
| SFL Corporation Ltd (SFL) | 139 | +0.04% | 50% |
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How the numbers are made.
How is Haynes International, Inc.'s median reaction calculated?
Every labeled HAYN 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 139 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. 35% of HAYN'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 HAYN'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.