COMPASS Pathways Plc - American Depository Shares (CMPS)
CMPS moved a median of +0.04% 30 minutes after news, and +0.20% by the close. How CMPS actually reacts to news — the realized, point-in-time move the market made, measured across 317 labeled events over the last three years with zero look-ahead.
CMPS’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -0.15% | 45% | 317 |
| 30-min | +0.04% | 50% | 317 |
| 60-min | -0.17% | 48% | 317 |
| to close | +0.20% | 50% | 312 |
| Middle 50% of CMPS reactions | -2.05% to +2.00% |
|---|---|
| Median reaction (30-min) | +0.04% |
| Measured reactions | 317 |
Half of all COMPASS Pathways Plc - American Depository Shares news events land between -2.05% and +2.00% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How CMPS reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 11 | -1.42% | 18% | +1.02% |
| Coverage initiations | 23 | +0.42% | 52% | -0.76% |
| Rating reiterations | 83 | +0.15% | 57% | -0.18% |
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 CMPS ranks against every other measured name →
That’s how CMPS usually reacts — get an email when it moves on news →Email me when CMPS moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to CMPS's baseline. Nothing else.
Recent CMPS events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Compass Pathways Joins Forces with Leading Mental Health Organizations to Mark First-Ever U.S. Treatment-Resistant Depression (TRD) Awareness Day | Press release | Business Wire | -0.99% | +1.53% | |
| 2026 Patient Innovators Awards Winners Announced at Courier Health's Annual Summit | Press release | PR Newswire | -0.66% | -2.28% | |
| CME Outfitters and Zealic Health Partner to Advance Readiness for Psychedelic Therapy Delivery | Press release | GlobeNewswire | +0.30% | +2.48% | |
| Compass Pathways Announces New Employee Inducement Grants Under Nasdaq Listing Rule 5635(c)(4) | Press release | Business Wire | +0.42% | -0.83% | |
| Compass Pathways Appoints Kelley Boucher as Chief People Officer | Press release | Business Wire | -1.11% | -5.11% | |
| Over $3.6M Raised to Build a More Connected Future of Mental Health at 32nd One Mind Music Festival Featuring The Fray | Press release | Business Wire | -0.01% | -0.58% | |
| Compass Pathways to Participate in TD Cowen 6th Annual Novel Mechanisms in Neuropsychiatry Summit on September 23, 2026 | Press release | Business Wire | -0.12% | -0.07% | |
| Compass Pathways Launches ‘Change the Tune in TRD’ in the U.S. to Advance HCP Understanding of Treatment-Resistant Depression at Psych Congress 2026 | Press release | Business Wire | -1.62% | -5.02% | |
| Serapha Bio Appoints Kenneth T. Mills as Chief Executive Officer and Names Senior Leadership Team to Advance Potential Best-in-Class in vivo Base Editing Program for Alpha-1 Antitrypsin Deficiency | Press release | GlobeNewswire | -1.62% | -5.02% | |
| Strata Mental Health Solutions Awarded U.S. Healthcare Provider Training Grant from Compass Pathways to Develop Provider Training for COMP360 | Press release | Business Wire | +1.20% | +2.39% | |
| Compass Pathways Announces U.S. Grant Program Recipients for the Development of Post-Approval COMP360 Provider Training | Press release | Business Wire | -1.74% | -4.63% | |
| Compass Pathways to Participate in Investor Conferences the Week of September 14th | Press release | Business Wire | -1.74% | -4.63% | |
| Fluence Selected by Compass Pathways to Develop Post-Approval COMP360 Provider Training | Press release | PR Newswire | -1.74% | -4.63% | |
| Compass Pathways’ New 52-Week Topline Open-Label Data from Phase 3 COMP005 Trial Demonstrates Additional Benefit from Another COMP360 Dose in Part C Extending Durability Out to 1 Year | Press release | Business Wire | -0.70% | +6.83% | |
| Compass Pathways to Debut U.S. HCP Education Campaign and Present New HEOR Data at Psych Congress 2026 | Press release | Business Wire | -0.34% | +5.72% | |
| Compass Pathways Announces New Employee Inducement Grants Under Nasdaq Listing Rule 5635(c)(4) | Press release | Business Wire | -0.15% | +0.76% | |
| Compass Pathways Recognized as a 2026 Fierce 50 Breakthrough Honoree | Press release | Business Wire | +0.68% | -0.60% | |
| Compass Pathways to Participate in 2026 Cantor Global Healthcare Conference on September 9, 2026 | Press release | Business Wire | -0.37% | -1.27% | |
| AWARD ANNOUNCEMENT: One Mind Grants $1.5M to Rising Star Mental Health Researchers, Advancing Breakthrough Science and the Next Generation of Scientific Leaders | Press release | Business Wire | +0.42% | +3.33% | |
| Postpartum Depression Market to Evolve During the Forecast Period (2026-2036) with Breakthrough Treatments and Expanding Pipeline Assets | DelveInsight | Press release | PR Newswire | +0.41% | +2.76% | |
| FESTIVAL ANNOUNCEMENT: 32nd Annual One Mind Music Festival Presented by Bank of America and Bristol Myers Squibb | Press release | Business Wire | +1.69% | +0.57% | |
| Major Depressive Disorder Market is Predicted to Grow During the Forecast Period (2026-2036) as Novel Antidepressants are Expected to Enter the Market | DelveInsight | Press release | PR Newswire | +0.45% | — | |
| Compass Pathways to Participate in Canaccord Genuity's 46th Annual Growth Conference on August 12, 2026 | Press release | Business Wire | -1.33% | +0.37% | |
| Compass Pathways Working with U.S. Department of Veterans Affairs for Investigational Study of Psilocybin | Press release | Business Wire | -1.33% | +0.37% | |
| Compass Pathways Announces New Employee Inducement Grants Under Nasdaq Listing Rule 5635(c)(4) | Press release | Business Wire | -1.33% | +0.37% | |
| Compass Pathways Announces Second Quarter and First Half 2026 Financial Results and Business Highlights | Press release | Business Wire | +6.47% | +17.07% | |
| Form 10-Q COMPASS Pathways plc For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +6.47% | +17.07% | |
| Form 8-K COMPASS Pathways plc For: Aug 05 | SEC filing · Form 8-K | SEC EDGAR | +6.47% | +17.07% | |
| Form S-3ASR COMPASS Pathways plc | SEC filing · Form S-3ASR | SEC EDGAR | -1.33% | +0.37% | |
| Compass Pathways to Announce Second Quarter and First Half 2026 Financial Results on August 5, 2026 | Press release | Business Wire | -0.18% | +0.93% | |
| A Depression Drug Just Cleared a Key Hurdle Early, and the Market for New Mental Health Treatments Keeps Widening | Press release | Canada Newswire | +0.40% | +4.91% | |
| Compass Pathways Announces Publication of Post-Hoc Analysis Demonstrating Distinction of COMP360 Trial Monitoring & Support from Psychotherapy | Press release | Business Wire | -6.15% | -14.10% | |
| Compass Pathways Announces Six-Month Data from Second Phase 3 Trial Confirming Rapid and Durable Profile | Press release | Business Wire | +2.06% | +11.41% | |
| Form 8-K COMPASS Pathways plc For: Jul 07 | SEC filing · Form 8-K | SEC EDGAR | +2.06% | +11.41% | |
| Compass Pathways Announces New Employee Inducement Grants Under Nasdaq Listing Rule 5635(c)(4) | Press release | Business Wire | -0.90% | +1.95% | |
| A Breakthrough-Designated Depression Drug Is 86% Through Its Phase 3, With Topline Data Due This Year | Press release | Canada Newswire | +0.89% | +9.53% | |
| Compass Pathways Announces New Employee Inducement Grants Under Nasdaq Listing Rule 5635(c)(4) | Press release | Business Wire | -0.77% | -6.85% | |
| DATAcc by DiMe releases first set of digital measures built specifically for common mental health disorders | Press release | PR Newswire | -0.04% | -3.97% | |
| FundaMental Pharma appoints depression drug developer Dr. Hans Eriksson as Chief Medical Officer to advance its lead treatment-resistant depression candidate | Press release | GlobeNewswire | -1.94% | -5.99% | |
| Compass Pathways Elects Kathleen Tregoning to Board of Directors | Press release | Business Wire | -0.34% | +1.19% | |
| Form 8-K COMPASS Pathways plc For: May 27 | SEC filing · Form 8-K | SEC EDGAR | -0.34% | +1.19% | |
| Compass Pathways to Participate in Jefferies Global Healthcare Conference on June 3, 2026 | Press release | Business Wire | -0.61% | +0.20% | |
| Compass Pathways to Participate in RBC Capital Markets Global Healthcare Conference on May 19-20, 2026 | Press release | Business Wire | +1.16% | -1.12% | |
| Compass Pathways Announces First Quarter 2026 Financial Results and Business Highlights | Press release | Business Wire | -0.61% | +11.95% | |
| Form 10-Q COMPASS Pathways plc For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -0.61% | +11.95% | |
| Form 8-K COMPASS Pathways plc For: May 13 | SEC filing · Form 8-K | SEC EDGAR | -0.61% | +11.95% | |
| Compass Pathways Announces New Employee Inducement Grants Under Nasdaq Listing Rule 5635(c)(4) | Press release | Business Wire | -0.35% | +4.61% | |
| Compass Pathways to Announce First Quarter 2026 Financial Results on May 13, 2026 | Press release | Business Wire | -0.35% | +4.61% | |
| Compass Pathways Announces FDA Granted NDA Rolling Review Request and Awarded Commissioner's National Priority Voucher | Press release | Business Wire | -0.34% | +7.58% | |
| Compass Pathways Collaborates with Osmind to Advance Independent Clinic Readiness for Psychedelic Treatments | Press release | Business Wire | -3.20% | -5.03% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the CMPS section they belong to.
Where else CMPS is measured.
CMPS earnings → · Analyst actions → · SEC filings →
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Every name we’ve measured, in one place.
How the numbers are made.
How is COMPASS Pathways Plc - American Depository Shares's median reaction calculated?
Every labeled CMPS 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 317 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. 50% of CMPS'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 CMPS'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.