Cardio Diagnostics Holdings Inc. - Common stock (CDIO)
CDIO moved a median of -0.36% 30 minutes after news, and -0.65% by the close. How CDIO actually reacts to news — the realized, point-in-time move the market made, measured across 197 labeled events over the last three years with zero look-ahead.
CDIO’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 37% | 175 |
| 30-min | -0.36% | 43% | 190 |
| 60-min | -0.59% | 42% | 195 |
| to close | -0.65% | 43% | 194 |
| Middle 50% of CDIO reactions | -2.98% to +1.87% |
|---|---|
| Median reaction (30-min) | -0.36% |
| Measured reactions | 197 |
Half of all Cardio Diagnostics Holdings Inc. - Common stock news events land between -2.98% and +1.87% 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 CDIO moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to CDIO's baseline. Nothing else.
Recent CDIO events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 8-K Cardio Diagnostics Holdi For: Sep 18 | SEC filing · Form 8-K | SEC EDGAR | -1.45% | -7.25% | |
| Form DEFA14A Cardio Diagnostics Holdi | SEC filing · Form DEFA14A | SEC EDGAR | +0.00% | +4.25% | |
| Cardio Diagnostics Report Identifies Growing Rural Cardiovascular Care Gap Amid Ongoing Workforce Shortages and Access Challenges | Press release | Business Wire | +0.00% | +0.00% | |
| Form 8-K Cardio Diagnostics Holdi For: Aug 20 | SEC filing · Form 8-K | SEC EDGAR | -3.50% | +11.05% | |
| Cardio Diagnostics Begins In-House Test Processing at Its New High Complexity CLIA-Certified Laboratory in Iowa City | Press release | Business Wire | — | -4.02% | |
| Form 10-Q Cardio Diagnostics Holdi For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +1.69% | — | |
| Form DEFA14A Cardio Diagnostics Holdi | SEC filing · Form DEFA14A | SEC EDGAR | — | +5.29% | |
| Cardio Diagnostics Holdings, Inc. to Host Investor Call on Thursday, August 20, 2026 | Press release | Business Wire | — | +0.57% | |
| Form DEF 14A Cardio Diagnostics Holdi For: Sep 18 | SEC filing · Form DEF | SEC EDGAR | +2.35% | -2.35% | |
| Form ARS Cardio Diagnostics Holdi For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | -0.61% | -6.06% | |
| Form PRE 14A Cardio Diagnostics Holdi For: Sep 18 | SEC filing · Form PRE | SEC EDGAR | +0.00% | +4.65% | |
| Atlas Healthcare Physicians to Cover Cardio Diagnostics’ Precision Cardiovascular Medicine Tests Across Its Network | Press release | Business Wire | -0.47% | -5.58% | |
| Cardio Diagnostics Holdings, Inc. to Showcase Precision Cardiovascular Solutions at Four National Benefits Conferences in June | Press release | Business Wire | -0.29% | +1.16% | |
| Form 10-Q Cardio Diagnostics Holdi For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -0.65% | -10.32% | |
| IBN Initiates Coverage of Cardio Diagnostics Holdings Inc. | Press release | GlobeNewswire | +1.23% | +0.00% | |
| Form 10-K Cardio Diagnostics Holdi For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +3.21% | -13.93% | |
| Form 8-K Cardio Diagnostics Holdi For: Feb 19 | SEC filing · Form 8-K | SEC EDGAR | -1.56% | -12.50% | |
| Cardio Diagnostics Holdings, Inc. to Host Investor Call on Wednesday, February 18, 2026 | Press release | Business Wire | -5.43% | -7.75% | |
| Cardio Diagnostics, Aimil Ltd. and Dr. Lal PathLabs Limited Partner to Launch the PrecisionCHD™ Test in India | Press release | Business Wire | -6.18% | -13.89% | |
| Cardio Diagnostics Holdings, Inc. and Southdale YMCA Announce New Heart Health Partnership to Serve the Edina, Minnesota Community | Press release | Business Wire | +0.00% | -7.37% | |
| Cardio Diagnostics Receives Final Gapfill Payment Rates for AI-Driven Cardiovascular Tests from the Centers for Medicare and Medicaid Services (CMS) | Press release | Business Wire | +0.00% | -7.99% | |
| Form 10-Q Cardio Diagnostics Holdi For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +4.23% | — | |
| Cardio Diagnostics Holdings, Inc. to Present Data Demonstrating PrecisionCHD’s Ability to Detect INOCA and MINOCA at the American Heart Association Scientific Sessions | Press release | Business Wire | +8.01% | +8.01% | |
| Cardio Diagnostics Holdings, Inc. and YMCA of East Tennessee Partner to Bring Heart Health Education and Advanced Testing to East Tennessee Community | Press release | Business Wire | +1.02% | +8.44% | |
| Cardio Diagnostics Holdings, Inc. Expands Provider Network, Adding 15 New Provider Organizations From Across the United States | Press release | Business Wire | +0.00% | -4.71% | |
| Form 8-K Cardio Diagnostics Holdi For: Oct 15 | SEC filing · Form 8-K | SEC EDGAR | -2.25% | -4.20% | |
| Form EFFECT Cardio Diagnostics Holdi | SEC filing · Form EFFECT | SEC EDGAR | +2.56% | +0.00% | |
| Form POS AM Cardio Diagnostics Holdi | SEC filing · Form POS | SEC EDGAR | — | -1.03% | |
| Form EFFECT Cardio Diagnostics Holdi | SEC filing · Form EFFECT | SEC EDGAR | +0.00% | -5.10% | |
| Form POS AM Cardio Diagnostics Holdi | SEC filing · Form POS | SEC EDGAR | +1.23% | -0.82% | |
| Form DEF 14A Cardio Diagnostics Holdi For: Oct 15 | SEC filing · Form DEF | SEC EDGAR | +0.00% | -7.57% | |
| Form DEFA14A Cardio Diagnostics Holdi | SEC filing · Form DEFA14A | SEC EDGAR | +0.00% | -7.57% | |
| Form ARS Cardio Diagnostics Holdi For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | — | +2.99% | |
| Form 10-Q Cardio Diagnostics Holdi For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | — | -9.25% | |
| Form PRE 14A Cardio Diagnostics Holdi For: Oct 15 | SEC filing · Form PRE | SEC EDGAR | +4.91% | +4.09% | |
| Cardio Diagnostics Receives Gapfill Payment Rates for AI-Driven Cardiovascular Tests from the Centers for Medicare and Medicaid Services (CMS) | Press release | Business Wire | +3.00% | +3.00% | |
| Cardio Diagnostics Enters Into an Agreement with AGEPHA Pharma to Advance Precision Assessment and Management of Inflammation Associated with Coronary Heart Disease | Press release | Business Wire | +0.78% | +3.90% | |
| Cardio Diagnostics Secures Japanese Patent for AI-Driven Cardiovascular Disease Detection Technology | Press release | Business Wire | -0.42% | -4.63% | |
| Cardio Diagnostics Holdings, Inc. Regains Compliance with Nasdaq Minimum Bid Price | Press release | Business Wire | -2.09% | -2.32% | |
| Form 8-K Cardio Diagnostics Holdi For: May 28 | SEC filing · Form 8-K | SEC EDGAR | -2.09% | -2.32% | |
| Cardio Diagnostics Broadens Access to Precision Cardiovascular Care with New Practice Partnerships Across U.S. Mainland and Puerto Rico | Press release | Business Wire | -2.69% | +6.49% | |
| Form 10-Q Cardio Diagnostics Holdi For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +3.92% | +7.87% | |
| Form 8-K Cardio Diagnostics Holdi For: May 12 | SEC filing · Form 8-K | SEC EDGAR | +5.06% | +12.87% | |
| Cardio Diagnostics Holdings, Inc. Announces 1-for-30 Reverse Stock Split | Press release | Business Wire | +2.00% | +6.20% | |
| Form S-8 Cardio Diagnostics Holdi | SEC filing · Form S-8 | SEC EDGAR | +2.38% | +12.34% | |
| Cardio Diagnostics Holdings, Inc. to Showcase Enhanced PrecisionCHD™, Actionable Clinical Intelligence™ and New Clinical Advancements at the American College of Cardiology’s 74th Annual Scientific Session | Press release | Business Wire | -0.72% | -1.27% | |
| Form 10-K Cardio Diagnostics Holdi For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.40% | +0.45% | |
| Form 8-K Cardio Diagnostics Holdi For: Feb 21 | SEC filing · Form 8-K | SEC EDGAR | -2.04% | +2.96% | |
| Form EFFECT Cardio Diagnostics Holdi | SEC filing · Form EFFECT | SEC EDGAR | +1.51% | -7.82% | |
| Form S-3 Cardio Diagnostics Holdi | SEC filing · Form S-3 | SEC EDGAR | -7.20% | -0.73% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the CDIO section they belong to.
Where else CDIO is measured.
CDIO earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is Cardio Diagnostics Holdings Inc. - Common stock's median reaction calculated?
Every labeled CDIO 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 197 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. 43% of CDIO'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 CDIO'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.