Coherent Corp. (COHR)
COHR moved a median of -0.02% 30 minutes after news, and +0.25% by the close. How COHR actually reacts to news — the realized, point-in-time move the market made, measured across 636 labeled events over the last three years with zero look-ahead.
COHR’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | +0.02% | 51% | 633 |
| 30-min | -0.02% | 48% | 633 |
| 60-min | -0.07% | 47% | 633 |
| to close | +0.25% | 54% | 632 |
| Middle 50% of COHR reactions | -0.82% to +1.03% |
|---|---|
| Median reaction (30-min) | -0.02% |
| Measured reactions | 636 |
Half of all Coherent Corp. news events land between -0.82% and +1.03% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How COHR reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 12 | -0.49% | 42% | -0.68% |
| Analyst downgrades | 11 | +0.29% | 100% | +1.86% |
| Coverage initiations | 11 | +0.42% | 64% | +0.46% |
| Rating reiterations | 111 | +0.07% | 52% | -0.08% |
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 COHR ranks against every other measured name →
That’s how COHR usually reacts — get an email when it moves on news →Email me when COHR moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to COHR's baseline. Nothing else.
Recent COHR events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Coherent Corp. Announces Timing of FY2027 First Quarter Earnings Release | Press release | GlobeNewswire | -3.30% | +0.59% | |
| Form ARS COHERENT CORP. For: Jun 30 | SEC filing · Form ARS | SEC EDGAR | +2.57% | -1.85% | |
| Form DEF 14A COHERENT CORP. For: Nov 18 | SEC filing · Form DEF | SEC EDGAR | +2.57% | -1.85% | |
| Form DEFA14A COHERENT CORP. | SEC filing · Form DEFA14A | SEC EDGAR | +2.57% | -1.85% | |
| Coherent Launches PhotonLink™ Integrated Optics Platform for AI Infrastructure | Press release | GlobeNewswire | +1.47% | +0.18% | |
| Coherent Showcases Optical Innovations to Scale AI Infrastructure at ECOC 2026 | Press release | GlobeNewswire | -1.93% | -1.16% | |
| Coherent Expands Pluggable Optical Line Systems Portfolio with Full C-Band Amplification to Enable AI Datacenter Networks | Press release | GlobeNewswire | +0.73% | +3.88% | |
| Coherent Brings AI Datacenter and Photonics Thought Leadership to ECOC 2026 in Málaga, Spain | Press release | GlobeNewswire | +1.19% | -1.56% | |
| Form 8-K COHERENT CORP. For: Aug 27 | SEC filing · Form 8-K | SEC EDGAR | -1.36% | -1.03% | |
| Coherent Corp. to Unveil PhotonLink™ Platform at ECOC on September 21, 2026 | Press release | GlobeNewswire | -0.46% | +2.81% | |
| Coherent Begins Customer Sampling of 300mm High Thermal Conductivity Silicon Carbide Substrates for AI Infrastructure | Press release | GlobeNewswire | +0.69% | -5.42% | |
| Form 10-K COHERENT CORP. For: Jun 30 | SEC filing · Form 10-K | SEC EDGAR | -1.97% | +0.33% | |
| Coherent Corp. Reports Fourth Quarter and Full Year Fiscal 2026 Results | Press release | GlobeNewswire | +1.52% | -4.54% | |
| Form 8-K COHERENT CORP. For: Aug 12 | SEC filing · Form 8-K | SEC EDGAR | +1.52% | -4.54% | |
| Coherent Corp. Announces Timing of FY2026 Fourth Quarter and Fiscal Year-End Earnings Release | Press release | GlobeNewswire | +2.99% | +1.80% | |
| Coherent Named One of TIME's America's Best Companies 2026 | Press release | GlobeNewswire | +2.01% | -2.58% | |
| Coherent Announces a CHIPS Letter of Intent for $50 Million to Expand World-Leading Manufacturing Facility for AI Infrastructure | Press release | GlobeNewswire | -1.91% | -9.04% | |
| Form SD COHERENT CORP. | SEC filing · Form SD | SEC EDGAR | +2.01% | +3.39% | |
| Coherent Corp. Reports Third Quarter Fiscal 2026 Results | Press release | GlobeNewswire | +0.50% | -2.73% | |
| Form 10-Q COHERENT CORP. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.50% | -2.73% | |
| Form 8-K COHERENT CORP. For: May 06 | SEC filing · Form 8-K | SEC EDGAR | +0.50% | -2.73% | |
| Form 8-K COHERENT CORP. For: Apr 27 | SEC filing · Form 8-K | SEC EDGAR | -1.57% | -1.00% | |
| Coherent Corp. Announces Timing of FY2026 Third Quarter Earnings Release | Press release | GlobeNewswire | +3.29% | -0.15% | |
| Coherent Advances Silicon Carbide Thick Epitaxy Capabilities for High-Voltage AI Datacenter and Industrial Power Applications Up to 10kV | Press release | GlobeNewswire | -3.65% | +5.47% | |
| Coherent Demonstrates InP Technology Innovation With a Broad Range of Products | Press release | GlobeNewswire | +0.23% | +1.64% | |
| Coherent Demonstrates Multiple Co-Packaged Optics (CPO) Technologies at OFC 2026 | Press release | GlobeNewswire | +0.21% | +4.06% | |
| Coherent Demonstrates Technologies for Next-Generation Pluggable Transceivers at OFC 2026 | Press release | GlobeNewswire | +0.21% | +4.06% | |
| Coherent to Unveil Breakthrough AI-Scale Optical Innovations and Industry Leadership at OFC 2026 | Press release | GlobeNewswire | +0.21% | +4.06% | |
| Coherent Advances Scale-Across Networks with Significant Enhancements to Its Multi-Rail Transport Platform | Press release | GlobeNewswire | +1.02% | -1.72% | |
| Coherent Launches 700mW Uncooled Micro-Pump Lasers for Improving Efficiency of Scale-Across Networks | Press release | GlobeNewswire | +2.93% | +6.06% | |
| Coherent to Join the S&P 500 | Press release | GlobeNewswire | +2.93% | +6.06% | |
| Coherent Announces General Availability of Industry's First Dual-Laser QSFP28-DCO for Single Fiber Transmission | Press release | GlobeNewswire | +2.93% | +6.06% | |
| Coherent Introduces Thermadite Liquid Cold Plates for High-Power Compute Applications | Press release | GlobeNewswire | +0.12% | -2.93% | |
| Coherent Launches 224Gbps Quad TIA for Next-Generation AI and Cloud Infrastructure | Press release | GlobeNewswire | -1.78% | -4.40% | |
| Coherent Launches WaveMaker® 4000A for Super C-Band DWDM System Testing | Press release | GlobeNewswire | -1.82% | -6.30% | |
| Coherent Executives to Showcase Thought Leadership at OFC - CTO Julie Eng to Deliver the Plenary Session | Press release | GlobeNewswire | -1.82% | -6.30% | |
| Form 8-K COHERENT CORP. For: Mar 02 | SEC filing · Form 8-K | SEC EDGAR | +2.56% | +8.18% | |
| Coherent’s CEO and CFO to Participate in Fireside Chat at Morgan Stanley 2026 TMT Conference on March 3, 2026 | Press release | GlobeNewswire | +1.82% | +4.82% | |
| Coherent Corp. to Host a Technology Innovation Briefing on March 17, 2026 | Press release | GlobeNewswire | -0.59% | +4.74% | |
| Coherent Executives Take the Stage at the Optica Executive Forum at OFC 2026, Spotlighting the Future of AI Networking | Press release | GlobeNewswire | +1.60% | +1.22% | |
| Six Coherent Products Recognized by Lightwave Innovation Awards | Press release | GlobeNewswire | -1.97% | -2.53% | |
| Coherent Corp. Reports Second Quarter Fiscal 2026 Results | Press release | GlobeNewswire | +10.65% | +16.88% | |
| Form 10-Q COHERENT CORP. For: Dec 31 | SEC filing · Form 10-Q | SEC EDGAR | +10.65% | +16.88% | |
| Form 8-K COHERENT CORP. For: Feb 04 | SEC filing · Form 8-K | SEC EDGAR | +10.65% | +16.88% | |
| Coherent Corp. Announces Timing of FY2026 Second Quarter Earnings Release | Press release | GlobeNewswire | -1.10% | -2.63% | |
| Coherent and Quside Demonstrate Verifiable Entropy for Quantum-Safe Encryption | Press release | GlobeNewswire | +2.96% | +3.84% | |
| Coherent Highlights Photonics and Advanced Materials Innovation at Photonics West 2026 | Press release | GlobeNewswire | +0.71% | -0.79% | |
| Coherent Expands Thermal Management Portfolio with High-Performance Bondable Diamond Solutions | Press release | GlobeNewswire | +2.96% | +3.84% | |
| Coherent Introduces Germanium-Free Electro-Optic Modulator for High-Speed CO2 Laser Via Drilling | Press release | GlobeNewswire | +2.96% | +3.84% | |
| Coherent Launches AxioView™ Imaging Fiber Assemblies for OCT and Multimodal Medical Catheters | Press release | GlobeNewswire | +2.96% | +3.84% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the COHR section they belong to.
Where else COHR is measured.
COHR earnings → · Analyst actions → · SEC filings →
Other Technology names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| QAD Inc. - Class A (QADA) | 638 | 0.00% | 50% |
| Sunrun Inc. (RUN) | 637 | -0.08% | 47% |
| Leidos Holdings, Inc. (LDOS) | 636 | -0.04% | 47% |
| MoSys, Inc. (MOSY) | 631 | -0.06% | 40% |
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.
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Every name we’ve measured, in one place.
How the numbers are made.
How is Coherent Corp.'s median reaction calculated?
Every labeled COHR 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 636 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. 48% of COHR'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 COHR'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.