Tone mix
Week by week 52 weeks
Share of Quest Diagnostics Inc.'s 287 headlines over the last 52 weeks by the model's call, and the same mix week by week.
Biggest swings in the last year
The weeks whose tone moved furthest from the 8-week average, with the story most outlets carried that week.
- Week of Sep 8, 2025 · tone -45Quest Diagnostics says it's tracking a concerning drug trend in the workplace-73
- Week of Apr 27, 2026 · tone +100Quest Diagnostics (NYSE:DGX) Upgraded at Wall Street Zen+64
- Week of Jan 26, 2026 · tone -48Quest Diagnostics (NYSE:DGX) Cut to "Hold" at Wall Street Zen-62
- Week of Sep 14, 2026 · tone -46Nine in 10 Voters Express Concern That Medicare Lab Payment Cuts Will Harm Patient Access to Diagnostic Lab Testing, Finds National Survey from Quest Diagnostics-59
- Week of Jun 22, 2026 · tone +67Quest Diagnostics' Haystack MRD Test Wins New York State Approval For Solid Tumor Monitoring+51
- Week of Jun 15, 2026 · tone -46Artia Global Partners LP Cuts Stake in Quest Diagnostics Incorporated $DGX-44
Daily headline tone, last 90 sessions
Hover a session for its totals; click to pin.
Each point is the average score of the headlines about Quest Diagnostics Inc. in one trading session, with the 8-session average drawn through it. Sessions with no headline about the company have no point.
Tone by period
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| Last 7 sessions | 34 | -39 |
| Last 30 sessions | 41 | -27 |
| Last 90 sessions | 117 | +6 |
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Every headline in the period counts equally.
Headlines on Wednesday, October 28, 2026
1 headline, average tone -99: 0 positive, 0 neutral and 1 negative. Showing all 1.
- www.medicaldaily.com · 1 outletQuest Diagnostics Confirms Unauthorized Access to Patient Records Through Quanum Lab Portal Used by Doctors NationwideNegative
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| Quest Diagnostics Confirms Unauthorized Access to Patient Records Through Quanum Lab Portal Used by Doctors Nationwide | www.medicaldaily.com | 1 | Negative |
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Headlines on Monday, October 26, 2026
12 headlines, average tone -70: 1 positive, 1 neutral and 10 negative. The 8 most widely carried stories are listed; the table holds all 12.
- www.troyrecord.com · 3 outletsQuest Diagnostics reports cyber breach affecting 'certain patient records'Negative
- www.klif.com · 2 outletsQuest Diagnostics Reports Patient-Record Intrusion As Labs Face Scrutiny Over Data SecurityNegative
- www.prnewswire.com · 2 outletsQuest Diagnostics Data Breach Investigation: Edelson Lechtzin LLP Probes Class Action Claims After Unauthorized Access to Patient RecordsNegative
- www.foxla.com · 1 outletIf you used Quest Diagnostics, your data may have been compromised: Here's what happenedNegative
- finchannel.com · 1 outletQuest Diagnostics raises 2026 outlook after Q3 growthPositive
- www.healthcaredive.com · 1 outletQuest Diagnostics hit by cyberattackNegative
- www.dailymail.com · 1 outletMajor attack on Quest Diagnostics used by 85m Americans exposes private patient recordsNegative
- www.investmentwatchblog.com · 1 outletQuest Diagnostics has been hacked. Patient data was exposed. They serve roughly half of U.S. hospitals and physicians. Investigation ongoing.Negative
Show the table · 12 rows, 4 columns
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| Quest Diagnostics reports cyber breach affecting 'certain patient records' | www.troyrecord.com | 3 | Negative |
| Quest Diagnostics Reports Patient-Record Intrusion As Labs Face Scrutiny Over Data Security | www.klif.com | 2 | Negative |
| Quest Diagnostics Data Breach Investigation: Edelson Lechtzin LLP Probes Class Action Claims After Unauthorized Access to Patient Records | www.prnewswire.com | 2 | Negative |
| If you used Quest Diagnostics, your data may have been compromised: Here's what happened | www.foxla.com | 1 | Negative |
| Quest Diagnostics raises 2026 outlook after Q3 growth | finchannel.com | 1 | Positive |
| Quest Diagnostics hit by cyberattack | www.healthcaredive.com | 1 | Negative |
| Major attack on Quest Diagnostics used by 85m Americans exposes private patient records | www.dailymail.com | 1 | Negative |
| Quest Diagnostics has been hacked. Patient data was exposed. They serve roughly half of U.S. hospitals and physicians. Investigation ongoing. | www.investmentwatchblog.com | 1 | Negative |
| Lab testing giant Quest Diagnostics confirms patients' personal and health data was compromised during breach | techcrunch.com | 1 | Negative |
| Quest Diagnostics Breach: What Patients Should Know | www.esecurityplanet.com | 1 | Negative |
| Quest Diagnostics confirms patient records were stolen in a data breach. | www.theverge.com | 1 | Negative |
| Quest Diagnostics reports 'unauthorized access' to its Quanum Lab Services Manager | www.valleynewslive.com | 1 | Neutral |
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Headlines on Friday, October 23, 2026
16 headlines, average tone -42: 2 positive, 5 neutral and 9 negative. The 8 most widely carried stories are listed; the table holds all 16.
- www.chicagotribune.com · 72 outletsQuest Diagnostics reports cyber breach affecting 'certain patient records'Negative
- www.fox4news.com · 14 outletsIf you used Quest Diagnostics, your data may have been compromised: Here's what happenedNegative
- www.wbay.com · 13 outletsQuest Diagnostics reports 'unauthorized access' to its Quanum Lab Services ManagerNeutral
- www.govinfosecurity.com · 2 outletsQuest Diagnostics Reports Hack on IT System Used by ClientsNeutral
- www.dailypolitical.com · 1 outletQuest Diagnostics (NYSE: DGX) lifts guidance after revenue jumps 10%Positive
- www.investors.com · 1 outletWhy Quest Diagnostics' 'Good Enough' Third Quarter Didn't Save It From A Muddy MacroNegative
- www.themarketsdaily.com · 1 outletQuest Diagnostics (NYSE:DGX) Releases Earnings Results, Beats Expectations By $0.13 EPSPositive
- econotimes.com · 1 outletQuest Diagnostics Pauses Quanum System After Suspected Patient Data AccessNegative
Show the table · 16 rows, 4 columns
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| Quest Diagnostics reports cyber breach affecting 'certain patient records' | www.chicagotribune.com | 72 | Negative |
| If you used Quest Diagnostics, your data may have been compromised: Here's what happened | www.fox4news.com | 14 | Negative |
| Quest Diagnostics reports 'unauthorized access' to its Quanum Lab Services Manager | www.wbay.com | 13 | Neutral |
| Quest Diagnostics Reports Hack on IT System Used by Clients | www.govinfosecurity.com | 2 | Neutral |
| Quest Diagnostics (NYSE: DGX) lifts guidance after revenue jumps 10% | www.dailypolitical.com | 1 | Positive |
| Why Quest Diagnostics' 'Good Enough' Third Quarter Didn't Save It From A Muddy Macro | www.investors.com | 1 | Negative |
| Quest Diagnostics (NYSE:DGX) Releases Earnings Results, Beats Expectations By $0.13 EPS | www.themarketsdaily.com | 1 | Positive |
| Quest Diagnostics Pauses Quanum System After Suspected Patient Data Access | econotimes.com | 1 | Negative |
| Quest Diagnostics Reports Unauthorized Access of Patient Records | gizmodo.com | 1 | Negative |
| Quest Diagnostics Data Breach Quanum Lsm Exposes Patient Records | www.el-balad.com | 1 | Negative |
| Major US medical lab operator, Quest Diagnostics, reports cyber breach exposed patient records | www.hindustantimes.com | 1 | Negative |
| Quest Diagnostics confirms patient data accessed in cyberattack | www.foxbusiness.com | 1 | Negative |
| As Quest Diagnostics experiences major data breach, Alvernia professor offers cyber safety tips | www.wfmz.com | 1 | Negative |
| What Quest Diagnostics (DGX) Said on Its Q3 Earnings Call | www.tickerreport.com | 1 | Neutral |
| Quest Diagnostics: 3 Key Takeaways for Long-Term Investors | www.fool.com | 1 | Neutral |
| Quest Diagnostics (DGX) Q3 2026 Earnings Call Transcript | www.fool.com | 1 | Neutral |
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Headlines on Thursday, October 22, 2026
3 headlines, average tone +100: 3 positive, 0 neutral and 0 negative. Showing all 3.
- www.rttnews.com · 2 outletsQuest Diagnostics Boosts FY26 OutlookPositive
- www.prnewswire.com · 2 outletsQuest Diagnostics Reports Third Quarter 2026 Financial Results; Raises Revenue and EPS Guidance for Full Year 2026Positive
- markets.financialcontent.com · 1 outletFinancialContent - Quest's (NYSE:DGX) Q3 2026: beats on revenuePositive
Show the table · 3 rows, 4 columns
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| Quest Diagnostics Boosts FY26 Outlook | www.rttnews.com | 2 | Positive |
| Quest Diagnostics Reports Third Quarter 2026 Financial Results; Raises Revenue and EPS Guidance for Full Year 2026 | www.prnewswire.com | 2 | Positive |
| FinancialContent - Quest's (NYSE:DGX) Q3 2026: beats on revenue | markets.financialcontent.com | 1 | Positive |
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Headlines on Wednesday, October 21, 2026
2 headlines, average tone 0: 0 positive, 2 neutral and 0 negative. Showing all 2.
- www.dailypolitical.com · 1 outletQuest Diagnostics Incorporated $DGX Stock Sold by Willis Investment CounselNeutral
- www.insidermonkey.com · 1 outletQuest Diagnostics (DGX): Is Rapid Test Growth Translating Into Better Customer Economics?Neutral
Show the table · 2 rows, 4 columns
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| Quest Diagnostics Incorporated $DGX Stock Sold by Willis Investment Counsel | www.dailypolitical.com | 1 | Neutral |
| Quest Diagnostics (DGX): Is Rapid Test Growth Translating Into Better Customer Economics? | www.insidermonkey.com | 1 | Neutral |
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How the score works
A headline's tone is not a forecast of the share price. Read the headlines themselves before acting on an average.
Which headlines count
Headlines come from the GDELT global news feed from 2019-09-23 on. A headline counts only when a model judges it to be about Quest Diagnostics Inc., not a passing mention.
How each headline is scored
The model calls each headline positive, neutral or negative news for the company. A period's tone is the share of positive minus negative headlines, from -100 (all negative) to +100 (all positive).
When a headline counts
Headlines published by 9:15 a.m. New York time belong to that day's session. Later and weekend headlines move to the next trading session.
Repeated stories
When several outlets carry the same headline, it counts once per session.