DexCom, Inc. (DXCM)
DXCM moved a median of +0.04% 30 minutes after news, and +0.03% by the close. How DXCM actually reacts to news — the realized, point-in-time move the market made, measured across 2,000+ labeled events over the last three years with zero look-ahead.
DXCM’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -0.03% | 47% | 1,993 |
| 30-min | +0.04% | 51% | 1,996 |
| 60-min | +0.04% | 51% | 1,996 |
| to close | +0.03% | 52% | 1,984 |
| Middle 50% of DXCM reactions | -0.57% to +0.70% |
|---|---|
| Median reaction (30-min) | +0.04% |
| Measured reactions | 2,000+ |
Half of all DexCom, Inc. news events land between -0.57% and +0.70% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How DXCM reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 32 | -0.55% | 31% | -0.98% |
| Analyst downgrades | 25 | -0.23% | 48% | -0.90% |
| Coverage initiations | 34 | -0.32% | 38% | -0.72% |
| Rating reiterations | 145 | -0.01% | 49% | +0.22% |
| Price-target raises | 42 | +0.25% | 60% | +0.01% |
| Price-target cuts | 36 | -0.21% | 39% | +0.04% |
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 DXCM ranks against every other measured name →
That’s how DXCM usually reacts — get an email when it moves on news →Email me when DXCM moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to DXCM's baseline. Nothing else.
Recent DXCM events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Landmark Dexcom CONNECT Study Published in The New England Journal of Medicine, Redefining the Standard of Care for People with Type 2 Diabetes Not on Insulin | Press release | Business Wire | +1.22% | +2.61% | |
| Dexcom Schedules Third Quarter 2026 Earnings Release and Conference Call for October 29, 2026 at 4:30 p.m. Eastern Time | Press release | Business Wire | +1.50% | +0.51% | |
| Dexcom U Enters Season 5 With a Record Roster and Evidence That Diabetes Stigma Among Young Athletes Is Fading | Press release | Business Wire | -0.69% | -3.64% | |
| Dexcom Publishes New Report During EASD 2026 on Type 2 Diabetes Revealing Critical Opportunity for Global Diabetes Care | Press release | Business Wire | -0.13% | +0.61% | |
| Dexcom Promotes Jereme Sylvain to Chief Operating Officer | Press release | Business Wire | -0.35% | +2.87% | |
| Form 8-K DEXCOM INC For: Sep 10 | SEC filing · Form 8-K | SEC EDGAR | -0.35% | +2.87% | |
| Dexcom Appoints Glenn Boehnlein to Board of Directors | Press release | Business Wire | +1.25% | -1.91% | |
| Form 8-K DEXCOM INC For: Sep 10 | SEC filing · Form 8-K | SEC EDGAR | +1.25% | -1.91% | |
| Did DexCom, Inc. Insiders Breach their Fiduciary Duties to Shareholders? | Press release | PR Newswire | -1.20% | -2.28% | |
| Dexcom Announces Upcoming Conference Presentation | Press release | Business Wire | +1.19% | -0.76% | |
| Dexcom Reports Second Quarter 2026 Financial Results | Press release | Business Wire | +2.21% | +4.31% | |
| Form 10-Q DEXCOM INC For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +2.21% | +4.31% | |
| Form 8-K DEXCOM INC For: Jul 30 | SEC filing · Form 8-K | SEC EDGAR | +2.21% | +4.31% | |
| Did DexCom, Inc. Insiders Breach their Fiduciary Duties to Shareholders? | Press release | PR Newswire | -0.19% | +0.97% | |
| Dexcom Announced as First Participant Selected for FDA's TEMPO Digital Health Devices Pilot Program | Press release | Business Wire | +0.20% | -0.84% | |
| Dexcom G7 15 Day Receives Health Canada Authorization: Extending Wear and Continuity for Canadian Adults Living with Diabetes | Press release | Business Wire | -2.10% | -1.29% | |
| Dexcom Schedules Second Quarter 2026 Earnings Release and Conference Call for July 30, 2026 at 4:30 p.m. Eastern Time | Press release | Business Wire | -0.95% | -0.72% | |
| Did DexCom, Inc. Insiders Breach their Fiduciary Duties to Shareholders? | Press release | PR Newswire | +0.10% | +1.51% | |
| Dexcom Further Advances Vision of Glucose Biosensing for All | Press release | Business Wire | -0.34% | -1.88% | |
| Dexcom CONNECT Study: The Most Significant Clinical Study Demonstrating CGM Benefits for People with Type 2 Diabetes Not Using Insulin | Press release | Business Wire | +2.33% | +4.17% | |
| Dexcom Reaffirms CGM Benefits for All People With Diabetes and Continues Momentum Toward Earlier Stage Intervention and Preventative Care at ADA 2026 | Press release | Business Wire | -0.41% | -2.08% | |
| Dexcom Releases Customer Advisory Council Report, Outlining Ongoing Commitments to Enhancing Product Performance and User Experience | Press release | Business Wire | -0.93% | -0.86% | |
| Form 8-K DEXCOM INC For: May 27 | SEC filing · Form 8-K | SEC EDGAR | -0.03% | +1.22% | |
| Form SD DEXCOM INC | SEC filing · Form SD | SEC EDGAR | -0.03% | +1.22% | |
| Dexcom Uncovers Theft of Scrapped Product, Notifies Potentially Impacted Users | Press release | Business Wire | -1.14% | -0.21% | |
| Redefining CGM for People With Type 2 Diabetes: Dexcom Announces Dexcom Flex in Germany | Press release | Business Wire | +0.47% | +5.20% | |
| Form 8-K DEXCOM INC For: May 14 | SEC filing · Form 8-K | SEC EDGAR | +1.42% | +2.87% | |
| Dexcom Announces Governance Enhancements Ahead of 2026 Investor Day | Press release | Business Wire | +1.42% | +2.87% | |
| Dexcom to Host Investor Day on May 14, 2026 | Press release | Business Wire | -0.36% | -1.75% | |
| Did DexCom, Inc. Insiders Breach their Fiduciary Duties to Shareholders? | Press release | PR Newswire | -0.23% | -0.15% | |
| Dexcom Reports First Quarter 2026 Financial Results | Press release | Business Wire | +1.69% | +1.32% | |
| Form 10-Q DEXCOM INC For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +1.69% | +1.32% | |
| Form 8-K DEXCOM INC For: Apr 30 | SEC filing · Form 8-K | SEC EDGAR | +1.69% | +1.32% | |
| Why Medtech Giants Are Quietly Paying Up for AI Diagnostics | Press release | Canada Newswire | -0.29% | -0.52% | |
| Form ARS DEXCOM INC For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +2.17% | -0.24% | |
| Form DEF 14A DEXCOM INC For: May 27 | SEC filing · Form DEF | SEC EDGAR | +2.17% | -0.24% | |
| Form DEFA14A DEXCOM INC | SEC filing · Form DEFA14A | SEC EDGAR | +2.17% | -0.24% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages DexCom, Inc. (DXCM) Shareholders to Inquire about Securities Investigation | Press release | ACCESS Newswire | +0.15% | +1.24% | |
| Did DexCom, Inc. Insiders Breach their Fiduciary Duties to Shareholders? | Press release | PR Newswire | -1.35% | -2.85% | |
| Bronstein, Gewirtz & Grossman, LLC Is Investigating DexCom, Inc. (DXCM) And Encourages Shareholders to Connect | Press release | ACCESS Newswire | — | +0.00% | |
| Bronstein, Gewirtz & Grossman, LLC Initiates an Investigation into Allegations Against DexCom, Inc. (DXCM) And Encourages Shareholders to Reach Out | Press release | ACCESS Newswire | +0.24% | +1.59% | |
| Bronstein, Gewirtz & Grossman, LLC Announces an Investigation Against DexCom, Inc. (DXCM) and Encourages Shareholders to Learn More About the Investigation | Press release | ACCESS Newswire | +0.06% | +0.21% | |
| Dexcom Schedules First Quarter 2026 Earnings Release and Conference Call for April 30, 2026 at 4:30 p.m. Eastern Time | Press release | Business Wire | -1.32% | +1.17% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages DexCom, Inc. (DXCM) Stockholders to Inquire about Securities Investigation | Press release | ACCESS Newswire | +0.49% | +0.86% | |
| DexCom, Inc. (DXCM) Investigation: Bronstein, Gewirtz & Grossman, LLC Encourages Shareholders to Contact the Firm to Learn More About the Investigation | Press release | ACCESS Newswire | +0.01% | -1.78% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages DexCom, Inc. (DXCM) Stockholders to Inquire about Securities Investigation | Press release | ACCESS Newswire | -0.59% | -3.17% | |
| Bronstein, Gewirtz & Grossman, LLC Initiates an Investigation into Allegations Against DexCom, Inc. (DXCM) And Encourages Stockholders to Reach Out | Press release | ACCESS Newswire | +0.64% | -0.22% | |
| Bronstein, Gewirtz & Grossman, LLC Is Investigating DexCom, Inc. (DXCM) And Encourages Stockholders to Connect | Press release | ACCESS Newswire | -0.48% | -1.65% | |
| DexCom, Inc. (DXCM) Investigation: Bronstein, Gewirtz & Grossman, LLC Encourages Stockholders to Contact the Firm to Learn More About the Investigation | Press release | ACCESS Newswire | +0.15% | +2.30% | |
| Bronstein, Gewirtz & Grossman, LLC Announces an Investigation Against DexCom, Inc. (DXCM) and Encourages Stockholders to Learn More About the Investigation | Press release | ACCESS Newswire | -0.29% | -1.90% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the DXCM section they belong to.
Where else DXCM is measured.
DXCM earnings → · Analyst actions → · SEC filings →
Other Healthcare names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| AETNA (AET) | 2,000+ | +0.06% | 58% |
| ALLERGAN INC (AGN) | 2,000+ | +0.04% | 54% |
| Endo International plc - Ordinary Shares (ENDP) | 2,000+ | 0.00% | 49% |
| Regeneron Pharmaceuticals, Inc. (REGN) | 2,000+ | +0.11% | 56% |
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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Every name we’ve measured, in one place.
How the numbers are made.
How is DexCom, Inc.'s median reaction calculated?
Every labeled DXCM 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 2,000+ 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. 51% of DXCM'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 DXCM'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.