McKesson Corporation (MCK)
MCK moved a median of +0.02% 30 minutes after news, and +0.14% by the close. How MCK actually reacts to news — the realized, point-in-time move the market made, measured across 355 labeled events over the last three years with zero look-ahead.
MCK’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 49% | 354 |
| 30-min | +0.02% | 53% | 355 |
| 60-min | +0.03% | 53% | 355 |
| to close | +0.14% | 55% | 352 |
| Middle 50% of MCK reactions | -0.33% to +0.36% |
|---|---|
| Median reaction (30-min) | +0.02% |
| Measured reactions | 355 |
Half of all McKesson Corporation news events land between -0.33% and +0.36% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How MCK reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 16 | -0.41% | 31% | +0.39% |
| Analyst downgrades | 19 | -0.25% | 26% | +0.01% |
| Coverage initiations | 17 | -0.26% | 24% | -0.47% |
| Rating reiterations | 117 | +0.10% | 58% | +0.18% |
| Price-target raises | 58 | +0.03% | 55% | +0.40% |
| Price-target cuts | 17 | +0.03% | 59% | -0.29% |
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 MCK ranks against every other measured name →
That’s how MCK usually reacts — get an email when it moves on news →Email me when MCK moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to MCK's baseline. Nothing else.
Recent MCK events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 8-K MCKESSON CORP For: Oct 06 | SEC filing · Form 8-K | SEC EDGAR | +0.07% | +0.07% | |
| McKesson Corporation Extends Pharmaceutical Distribution Agreement with CVS Health | Press release | Business Wire | +2.66% | +1.98% | |
| McKesson Corporation Announces Second Quarter Fiscal 2027 Earnings Release Date | Press release | Business Wire | +0.47% | -1.04% | |
| Form 8-K MCKESSON CORP For: Aug 25 | SEC filing · Form 8-K | SEC EDGAR | -0.14% | +0.28% | |
| McKesson Signs Agreement to Acquire Precision Medicine Group, LLC | Press release | Business Wire | +1.03% | +3.87% | |
| Form 10-Q MCKESSON CORP For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -3.07% | -3.56% | |
| Form 8-K MCKESSON CORP For: Aug 05 | SEC filing · Form 8-K | SEC EDGAR | -3.07% | -3.56% | |
| McKesson Reports Fiscal 2027 First Quarter Results and Raises Full Year Adjusted EPS Guidance | Press release | Business Wire | -3.07% | -3.56% | |
| Form 8-K MCKESSON CORP For: Jul 22 | SEC filing · Form 8-K | SEC EDGAR | +0.01% | +0.97% | |
| McKesson Corporation Raises Quarterly Dividend by 15% to $0.94 Per Share | Press release | Business Wire | +0.54% | -2.41% | |
| Form 8-K MCKESSON CORP For: Jun 29 | SEC filing · Form 8-K | SEC EDGAR | -0.68% | +1.48% | |
| Form DEFA14A MCKESSON CORP | SEC filing · Form DEFA14A | SEC EDGAR | -0.68% | +1.48% | |
| McKesson Corporation Announces First Quarter Fiscal 2027 Earnings Release Date | Press release | Business Wire | +0.13% | -0.22% | |
| Form 8-K MCKESSON CORP For: Jun 09 | SEC filing · Form 8-K | SEC EDGAR | +0.53% | -0.84% | |
| Form ARS MCKESSON CORP For: Mar 31 | SEC filing · Form ARS | SEC EDGAR | -1.42% | +0.12% | |
| Form DEF 14A MCKESSON CORP For: Mar 31 | SEC filing · Form DEF | SEC EDGAR | -1.42% | +0.12% | |
| Form DEFA14A MCKESSON CORP | SEC filing · Form DEFA14A | SEC EDGAR | -1.42% | +0.12% | |
| McKesson Closes Strategic Investment with Apollo Funds for Minority Interest in Medical-Surgical Solutions | Press release | Business Wire | +0.03% | +0.20% | |
| Form SD MCKESSON CORP | SEC filing · Form SD | SEC EDGAR | +0.91% | +0.30% | |
| Form 10-K MCKESSON CORP For: Mar 31 | SEC filing · Form 10-K | SEC EDGAR | +1.16% | -0.49% | |
| Form 8-K MCKESSON CORP For: May 07 | SEC filing · Form 8-K | SEC EDGAR | +1.16% | -0.49% | |
| McKesson Reports Fiscal 2026 Fourth Quarter and Full Year Results, Provides Fiscal 2027 Guidance, and Reaffirms Long-Term Financial Growth Targets | Press release | Business Wire | +1.16% | -0.49% | |
| Form 8-K MCKESSON CORP For: Apr 28 | SEC filing · Form 8-K | SEC EDGAR | +0.31% | -0.16% | |
| McKesson Corporation Declares Quarterly Dividend | Press release | Business Wire | +0.40% | -1.37% | |
| McKesson Signs Agreement with Apollo Funds for Strategic Minority Interest in Medical-Surgical Solutions | Press release | Business Wire | +0.05% | -1.21% | |
| Form 8-K MCKESSON CORP For: Apr 01 | SEC filing · Form 8-K | SEC EDGAR | +1.42% | -0.62% | |
| CoverMyMeds Expands Specialty Access and Affordability Solutions to Accelerate Therapy Journeys | Press release | PR Newswire | -0.18% | +2.40% | |
| Form 8-K MCKESSON CORP For: Mar 06 | SEC filing · Form 8-K | SEC EDGAR | -0.41% | -0.93% | |
| McKesson Corporation Announces Fourth Quarter Fiscal 2026 Earnings Release Date and Participation in Upcoming Conferences | Press release | Business Wire | -0.41% | -0.93% | |
| Form 8-K MCKESSON CORP For: Mar 03 | SEC filing · Form 8-K | SEC EDGAR | -0.60% | -1.44% | |
| McKesson Announces Planned CFO Transition | Press release | Business Wire | -0.60% | -1.44% | |
| Form S-3ASR MCKESSON CORP | SEC filing · Form S-3ASR | SEC EDGAR | +3.25% | +6.42% | |
| Form 10-Q MCKESSON CORP For: Dec 31 | SEC filing · Form 10-Q | SEC EDGAR | +3.25% | +6.42% | |
| Form 8-K MCKESSON CORP For: Feb 04 | SEC filing · Form 8-K | SEC EDGAR | +3.25% | +6.42% | |
| McKesson Corporation Reports Fiscal 2026 Third Quarter Results and Raises Full Year Adjusted EPS Guidance | Press release | Business Wire | +3.25% | +6.42% | |
| McKesson Corporation Completes Divestiture of Norwegian Operations | Press release | Business Wire | +1.05% | +1.44% | |
| McKesson Corporation Declares Quarterly Dividend | Press release | Business Wire | +0.13% | -0.33% | |
| Mckesson Corporation Announces Third Quarter Fiscal 2026 Earnings Release Date | Press release | Business Wire | -0.32% | -0.07% | |
| Form 10-Q MCKESSON CORP For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.02% | +3.15% | |
| Form 8-K MCKESSON CORP For: Nov 05 | SEC filing · Form 8-K | SEC EDGAR | -0.02% | +3.15% | |
| McKesson Corporation Reports Fiscal 2026 Second Quarter Results and Raises Full Year Adjusted EPS Guidance | Press release | Business Wire | -0.02% | +3.15% | |
| McKesson Corporation Declares Quarterly Dividend | Press release | Business Wire | +2.08% | +0.06% | |
| Form 8-K MCKESSON CORP For: Sep 23 | SEC filing · Form 8-K | SEC EDGAR | +1.60% | +3.69% | |
| McKesson Corporation Highlights Strategic Growth Strategies and Unveils Updated Long-term Financial Targets at Investor Day | Press release | Business Wire | +1.60% | +3.69% | |
| Form 8-K MCKESSON CORP For: Sep 18 | SEC filing · Form 8-K | SEC EDGAR | -0.22% | -0.12% | |
| McKesson Announces New Organizational Structure | Press release | Business Wire | -0.22% | -0.12% | |
| Form 10-Q MCKESSON CORP For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.79% | -2.96% | |
| Form 8-K MCKESSON CORP For: Aug 06 | SEC filing · Form 8-K | SEC EDGAR | -0.79% | -2.96% | |
| McKesson Corporation Reports Fiscal 2026 First Quarter Results and Raises Full Year Adjusted EPS Guidance | Press release | Business Wire | -0.79% | -2.96% | |
| Form 8-K MCKESSON CORP For: Jul 30 | SEC filing · Form 8-K | SEC EDGAR | -0.24% | +0.17% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the MCK section they belong to.
Where else MCK is measured.
MCK earnings → · Analyst actions → · SEC filings →
Other Healthcare names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| BioCardia, Inc. (BCDA) | 356 | -0.06% | 44% |
| BioMarin Pharmaceutical Inc. (BMRN) | 356 | -0.08% | 45% |
| Owens & Minor, Inc. (OMI) | 355 | -0.48% | 34% |
| Aurora Cannabis Inc. - Common Shares (ACB) | 354 | -0.18% | 47% |
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 Healthcare names, measured the same way →
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How the numbers are made.
How is McKesson Corporation's median reaction calculated?
Every labeled MCK 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 355 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 MCK'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 MCK'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.