Ecovyst Inc. (ECVT)
ECVT moved a median of +0.14% 30 minutes after news, and 0.00% by the close. How ECVT actually reacts to news — the realized, point-in-time move the market made, measured across 205 labeled events over the last three years with zero look-ahead.
ECVT’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | +0.06% | 53% | 205 |
| 30-min | +0.14% | 53% | 205 |
| 60-min | +0.15% | 60% | 205 |
| to close | 0.00% | 46% | 204 |
| Middle 50% of ECVT reactions | -0.30% to +0.88% |
|---|---|
| Median reaction (30-min) | +0.14% |
| Measured reactions | 205 |
Half of all Ecovyst Inc. news events land between -0.30% and +0.88% 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 ECVT moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to ECVT's baseline. Nothing else.
Recent ECVT events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Public Company Director and Former Fortune 50 Chief Accounting Officer Patti Humble Joins the Exceptional Women Alliance (EWA) | Press release | PR Newswire | -0.29% | +0.10% | |
| Ecovyst Announces Chief Financial Officer Transition | Press release | PR Newswire | +3.26% | +2.55% | |
| Form 8-K Ecovyst Inc. For: Aug 21 | SEC filing · Form 8-K | SEC EDGAR | +3.26% | +2.55% | |
| Form 10-Q Ecovyst Inc. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.27% | -5.03% | |
| Ecovyst Reports Second Quarter 2026 Results and Raises 2026 Outlook | Press release | PR Newswire | -4.25% | -6.38% | |
| Form 8-K Ecovyst Inc. For: Aug 05 | SEC filing · Form 8-K | SEC EDGAR | -4.25% | -6.38% | |
| Ecovyst to Host Second Quarter 2026 Earnings Conference Call and Webcast on Wednesday, August 5, 2026, at 11:00 a.m. ET | Press release | PR Newswire | +0.69% | +5.23% | |
| Ecovyst Completes Acquisition of Calabrian, Expanding Position as a Leading Provider of Sulfur-Based Chemistries and Technologies | Press release | PR Newswire | -0.04% | +0.20% | |
| Form 8-K Ecovyst Inc. For: Jun 30 | SEC filing · Form 8-K | SEC EDGAR | +0.73% | -2.60% | |
| Ecovyst Issues 2025 Corporate Sustainability Report | Press release | PR Newswire | +0.25% | +1.40% | |
| Form 11-K Ecovyst Inc. For: Dec 31 | SEC filing · Form 11-K | SEC EDGAR | -0.04% | +0.16% | |
| Form 8-K Ecovyst Inc. For: May 20 | SEC filing · Form 8-K | SEC EDGAR | -0.15% | +2.52% | |
| Ecovyst Completes Term Loan Amendment and Increase | Press release | PR Newswire | -0.20% | -0.68% | |
| Ecovyst Announces Term Loan Amendment and Increase | Press release | PR Newswire | -0.04% | +1.12% | |
| Ecovyst Reports First Quarter 2026 Results and Revises 2026 Outlook | Press release | PR Newswire | +0.94% | +2.43% | |
| Form 10-Q Ecovyst Inc. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -0.34% | -1.15% | |
| Form 8-K Ecovyst Inc. For: May 05 | SEC filing · Form 8-K | SEC EDGAR | +0.94% | +2.43% | |
| Form 8-K Ecovyst Inc. For: May 01 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -1.47% | |
| Ecovyst Announces Agreement to Acquire Calabrian Sulfur Dioxide & Sulfur Derivatives Business | Press release | PR Newswire | +0.35% | +0.70% | |
| Ecovyst to Host First Quarter 2026 Earnings Conference Call and Webcast on Tuesday, May 5, 2026 at 11:00 a.m. ET | Press release | PR Newswire | -0.04% | -0.44% | |
| Form ARS Ecovyst Inc. For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +0.11% | +2.78% | |
| Form DEF 14A Ecovyst Inc. For: May 20 | SEC filing · Form DEF | SEC EDGAR | +0.11% | +2.78% | |
| Form 10-K Ecovyst Inc. For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +1.34% | +0.53% | |
| Ecovyst Reports Fourth Quarter and Full Year 2025 Results | Press release | PR Newswire | +3.46% | -3.38% | |
| Form 8-K Ecovyst Inc. For: Feb 26 | SEC filing · Form 8-K | SEC EDGAR | +3.46% | -3.38% | |
| Ecovyst to Host Fourth Quarter 2025 Earnings Conference Call and Webcast on Thursday, February 26, 2026 at 11:00 a.m. ET | Press release | PR Newswire | -0.17% | +1.49% | |
| Form 8-K Ecovyst Inc. For: Dec 31 | SEC filing · Form 8-K | SEC EDGAR | +0.55% | +3.87% | |
| Ecovyst Completes Sale of Advanced Materials & Catalysts Segment to Technip Energies | Press release | PR Newswire | -0.45% | +1.02% | |
| Form 8-K Ecovyst Inc. For: Dec 08 | SEC filing · Form 8-K | SEC EDGAR | -0.33% | +1.64% | |
| Form 10-Q Ecovyst Inc. For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.24% | -0.59% | |
| Ecovyst Reports Third Quarter 2025 Results and Updates Guidance | Press release | PR Newswire | +0.13% | +2.89% | |
| Form 8-K Ecovyst Inc. For: Nov 04 | SEC filing · Form 8-K | SEC EDGAR | +0.13% | +2.89% | |
| Ecovyst to Host Third Quarter 2025 Earnings Conference Call and Webcast on Tuesday, November 4, 2025 at 11:00 a.m. ET | Press release | PR Newswire | -0.31% | -0.31% | |
| Ecovyst Announces Agreement to Sell its Advanced Materials & Catalyst Segment to Technip Energies | Press release | PR Newswire | +0.97% | -0.75% | |
| Form 8-K Ecovyst Inc. For: Sep 10 | SEC filing · Form 8-K | SEC EDGAR | -0.85% | -1.28% | |
| Form 8-K Ecovyst Inc. For: Aug 11 | SEC filing · Form 8-K | SEC EDGAR | +1.20% | — | |
| Ecovyst Reports Second Quarter 2025 Results | Press release | PR Newswire | +0.96% | -0.73% | |
| Form 10-Q Ecovyst Inc. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.51% | +3.68% | |
| Form 8-K Ecovyst Inc. For: Aug 07 | SEC filing · Form 8-K | SEC EDGAR | +0.96% | -0.73% | |
| Ecovyst to Host Second Quarter 2025 Earnings Conference Call and Webcast on Thursday, August 7, 2025 at 11:00 a.m. ET | Press release | PR Newswire | -0.57% | +2.27% | |
| Ecovyst Issues 2024 Sustainability Report | Press release | PR Newswire | +0.40% | +0.40% | |
| Form 11-K Ecovyst Inc. For: Dec 31 | SEC filing · Form 11-K | SEC EDGAR | -0.13% | +1.88% | |
| Form SD Ecovyst Inc. | SEC filing · Form SD | SEC EDGAR | -1.07% | -0.54% | |
| Form 8-K Ecovyst Inc. For: May 08 | SEC filing · Form 8-K | SEC EDGAR | +0.86% | -2.39% | |
| Ecovyst Completes Acquisition of Waggaman, Louisiana, Sulfuric Acid Assets from Cornerstone Chemical | Press release | PR Newswire | -2.02% | +0.88% | |
| Form 10-Q Ecovyst Inc. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -0.61% | +0.76% | |
| Ecovyst Reports First Quarter 2025 Results and Reaffirms 2025 Guidance for Adjusted EBITDA | Press release | PR Newswire | -2.12% | +0.98% | |
| Form 8-K Ecovyst Inc. For: May 01 | SEC filing · Form 8-K | SEC EDGAR | -2.12% | +0.98% | |
| Ecovyst Completes ABL Facility Amendments | Press release | PR Newswire | -0.70% | +2.44% | |
| Form 8-K Ecovyst Inc. For: Apr 10 | SEC filing · Form 8-K | SEC EDGAR | -0.70% | +2.44% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the ECVT section they belong to.
Where else ECVT is measured.
ECVT earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is Ecovyst Inc.'s median reaction calculated?
Every labeled ECVT 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 205 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. 53% of ECVT'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 ECVT'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.