Olin Corporation (OLN)
OLN moved a median of -0.14% 30 minutes after news, and -0.30% by the close. How OLN actually reacts to news — the realized, point-in-time move the market made, measured across 387 labeled events over the last three years with zero look-ahead.
OLN’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 49% | 387 |
| 30-min | -0.14% | 42% | 387 |
| 60-min | -0.07% | 46% | 387 |
| to close | -0.30% | 44% | 381 |
| Middle 50% of OLN reactions | -0.64% to +0.40% |
|---|---|
| Median reaction (30-min) | -0.14% |
| Measured reactions | 387 |
Half of all Olin Corporation news events land between -0.64% and +0.40% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How OLN reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 14 | +0.28% | 50% | -0.87% |
| Analyst downgrades | 33 | -0.17% | 49% | +0.43% |
| Coverage initiations | 19 | 0.00% | 47% | +0.07% |
| Rating reiterations | 135 | +0.09% | 53% | 0.00% |
| Price-target raises | 29 | 0.00% | 48% | -0.21% |
| Price-target cuts | 69 | +0.06% | 52% | -0.27% |
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. See how OLN ranks against every other measured name →
That’s how OLN usually reacts — get an email when it moves on news →Email me when OLN moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to OLN's baseline. Nothing else.
Recent OLN events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Olin Corporation Third Quarter 2026 Earnings Conference Call Announcement | Press release | PR Newswire | -0.09% | +0.06% | |
| OLIN and HUNTSMAN Announce Expiration of Hart-Scott-Rodino Waiting Period for Proposed Merger | Press release | PR Newswire | -0.23% | -1.77% | |
| Form 8-K OLIN Corp For: Aug 25 | SEC filing · Form 8-K | SEC EDGAR | -0.92% | +1.04% | |
| OLIN and HUNTSMAN Shareholders Approve Transformative Merger of Equals | Press release | PR Newswire | +0.12% | +0.46% | |
| Form 8-K OLIN Corp For: Aug 17 | SEC filing · Form 8-K | SEC EDGAR | -0.99% | -3.35% | |
| Form S-8 OLIN Corp | SEC filing · Form S-8 | SEC EDGAR | -0.16% | +0.00% | |
| Form 8-K OLIN Corp For: Aug 11 | SEC filing · Form 8-K | SEC EDGAR | -0.73% | -2.09% | |
| Form 10-Q OLIN Corp For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.11% | +2.24% | |
| Form 8-K OLIN Corp For: Jul 30 | SEC filing · Form 8-K | SEC EDGAR | -5.63% | -6.94% | |
| Olin Announces Second Quarter 2026 Results | Press release | PR Newswire | -5.63% | -6.94% | |
| Form EFFECT OLIN Corp | SEC filing · Form EFFECT | SEC EDGAR | +0.81% | -0.37% | |
| OLIN and HUNTSMAN Announce S-4 Registration Statement in Connection with Planned Merger is Effective | Press release | PR Newswire | +0.81% | -0.37% | |
| Form S-4/A OLIN Corp | SEC filing · Form S-4 | SEC EDGAR | -1.22% | +0.63% | |
| Halper Sadeh LLC is Investigating Whether SLP, HUN, OLN, PULM are Obtaining Fair Deals for their Shareholders | Press release | GlobeNewswire | +3.49% | +1.20% | |
| Form S-4 OLIN Corp | SEC filing · Form S-4 | SEC EDGAR | -0.51% | +0.71% | |
| Olin Corporation Second Quarter 2026 Earnings Conference Call Announcement | Press release | PR Newswire | +1.34% | +1.92% | |
| Form 11-K OLIN Corp For: Dec 31 | SEC filing · Form 11-K | SEC EDGAR | +0.14% | +2.30% | |
| Form 8-K OLIN Corp For: Jun 15 | SEC filing · Form 8-K | SEC EDGAR | +5.31% | -3.08% | |
| Form 8-K OLIN Corp For: Jun 16 | SEC filing · Form 8-K | SEC EDGAR | +1.14% | -6.85% | |
| OLIN and HUNTSMAN Announce Transformative Merger of Equals to Create a $12+ Billion Integrated North American Chemicals Leader | Press release | PR Newswire | +1.14% | -6.85% | |
| Form SD OLIN Corp | SEC filing · Form SD | SEC EDGAR | -0.02% | -0.58% | |
| Form 8-K/A OLIN Corp For: Apr 29 | SEC filing · Form 8-K | SEC EDGAR | +0.59% | -1.18% | |
| Form 10-Q OLIN Corp For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.24% | -0.98% | |
| Form 8-K OLIN Corp For: May 07 | SEC filing · Form 8-K | SEC EDGAR | +0.85% | -1.22% | |
| Olin Announces First Quarter 2026 Results | Press release | PR Newswire | +0.85% | -1.22% | |
| Form 8-K OLIN Corp For: Apr 29 | SEC filing · Form 8-K | SEC EDGAR | +0.31% | -0.10% | |
| Form S-8 OLIN Corp | SEC filing · Form S-8 | SEC EDGAR | +0.31% | -0.10% | |
| Olin Corporation First Quarter 2026 Earnings Conference Call Announcement | Press release | PR Newswire | +1.09% | +0.03% | |
| Form ARS OLIN Corp For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | -0.04% | +0.76% | |
| Form DEF 14A OLIN Corp For: Apr 30 | SEC filing · Form DEF | SEC EDGAR | -0.62% | -8.33% | |
| Form DEFA14A OLIN Corp | SEC filing · Form DEFA14A | SEC EDGAR | -0.62% | -8.33% | |
| Form S-3ASR OLIN Corp | SEC filing · Form S-3ASR | SEC EDGAR | -2.17% | -4.34% | |
| Form 10-K OLIN Corp For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.34% | +3.22% | |
| Form 8-K OLIN Corp For: Feb 19 | SEC filing · Form 8-K | SEC EDGAR | -0.76% | +2.06% | |
| Form S-8 POS OLIN Corp | SEC filing · Form S-8 | SEC EDGAR | -0.76% | +2.06% | |
| Form 8-K OLIN Corp For: Feb 12 | SEC filing · Form 8-K | SEC EDGAR | -0.43% | +1.89% | |
| Olin to Take a Fourth Quarter 2025 Charge Following Verdict in Shintech v. Olin Litigation | Press release | PR Newswire | -0.43% | +1.89% | |
| Form 8-K OLIN Corp For: Jan 29 | SEC filing · Form 8-K | SEC EDGAR | -5.67% | -5.92% | |
| Olin Announces Fourth Quarter 2025 Results | Press release | PR Newswire | -5.67% | -5.92% | |
| Form 8-K OLIN Corp For: Jan 08 | SEC filing · Form 8-K | SEC EDGAR | +0.76% | +13.89% | |
| Olin Updates Fourth Quarter 2025 Outlook | Press release | PR Newswire | +0.76% | +13.89% | |
| Olin Corporation Fourth Quarter 2025 Earnings Conference Call Announcement | Press release | PR Newswire | +0.38% | -4.54% | |
| Form 8-K OLIN Corp For: Nov 12 | SEC filing · Form 8-K | SEC EDGAR | +1.48% | — | |
| Olin Enters Strategic Partnership with Braskem to Drive Vinyls Value Growth | Press release | PR Newswire | -0.05% | +0.62% | |
| Form 10-Q OLIN Corp For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.27% | -0.27% | |
| Form 8-K OLIN Corp For: Oct 27 | SEC filing · Form 8-K | SEC EDGAR | -1.66% | +1.20% | |
| Olin Announces Third Quarter 2025 Results | Press release | PR Newswire | -1.66% | +1.20% | |
| Olin Corporation Third Quarter 2025 Earnings Conference Call Announcement | Press release | PR Newswire | -2.68% | -1.89% | |
| Form 8-K OLIN Corp For: Aug 12 | SEC filing · Form 8-K | SEC EDGAR | +0.31% | +3.95% | |
| Form 10-Q OLIN Corp For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.09% | — |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the OLN section they belong to.
Where else OLN is measured.
OLN earnings → · Analyst actions → · SEC filings →
Other Basic Materials names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Nucor Corporation (NUE) | 391 | -0.03% | 47% |
| Cleveland-Cliffs Inc. (CLF) | 389 | +0.10% | 52% |
| Alcoa Corporation (AA) | 386 | -0.24% | 42% |
| Apogee Enterprises, Inc. (APOG) | 384 | -0.03% | 49% |
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 Basic Materials names, measured the same way →
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How the numbers are made.
How is Olin Corporation's median reaction calculated?
Every labeled OLN 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 387 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. 42% of OLN'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 OLN'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.