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The Screen · Healthcare · Diagnostics & Research

Quest Diagnostics logoQuest Diagnostics

DGX · a US exchange · USD · Market cap $27.8B · 57,000 employees

Quest Diagnostics Incorporated provides diagnostic testing and services in the United States.

FAIL · Does not pass the screen
255.63 USD

Price as of 6 Nov 2026Daily close, not a live quote

Screened 2026-11-06 · the tape above runs as of 20:08 UTC · two dates, stated on purpose · verdict and workings shown in full · never trimmed

Key facts today

  • Price255.63 USD at the 6 Nov 2026 close
  • Our value readFair vs our fair value, as of 6 Nov 2026
  • Our regime readMarkup, as of 7 Nov 2026
  • Ethical screenDoes not pass
  • OptionsOpen interest leans to puts (put/call 1.44)
  • Last reviewed6 Nov 2026 (1 days ago)
  • Release timesRelease and earnings times on your chart: Event Guard Mentor

A summary of the dated readings below, not a live quote and not advice.

PRICE · ONE YEAR

Our fair-value range: $211.50 to $322.07, base estimate $258.83 (screen dated 2026-11-06).

Current read
Markup ?
Fair · screened 2026-11-06
  • Trend Markup
  • Insiders insiders sold, $292,329, latest filing 2026-10-26
  • Positioning no disclosures inside 60 days, left as found
  • Options put/call open interest 1.44, read 2026-11-02
  • Ethical does not pass the values gate
Price255.63 USD
Fair value258.83
Ethical score10.0/100
Value readFairas of 6 Nov 2026
Our investment reviews on this name
2026-10-29Read Accumulation241.89+5.7% to today ✓Distribution gives way to Accumulation
2026-10-15Read Distribution230.97+10.7% to today Markup gives way to Distribution first Distribution read since October
2026-10-11Read Markup237.62+7.6% to today ✓Distribution gives way to Markup
2026-10-02Read Distribution237.62+7.6% to today Accumulation gives way to Distribution

Our analytic regime reads on this name, dated and marked against the screened price. Small sample per name, and separate from the daily-framework accuracy on the Track Record page.

The full research record, in depth, below
The Label · The Season, Not the Day

This name holds its markup label.

Quest Diagnostics holds its Markup at $255.63. Consolidating, no directional conviction, held for 69 days.

As held on the ledger · 2026-11-06
PhaseMarkup
Quantitative stateConsolidating, no directional conviction, held for 69 days
Price at the screen$255.63
Valuation25.08 trailing · 21.02 forward price to earnings
Values screenFAIL · score 10.0
Beta0.54
The Workings

Five Screens, Shown in Full

Does not pass. Debt ratio

TestFigureLimitWhat it meansStatus
Business activity Permissible Core business clean Its core business isn't built on prohibited lines: no gambling, alcohol, tobacco, weapons, or interest-based lending. Pass
Debt load 40.59% Below 33% Interest-bearing debt is 40.6% of its assets, above the one-third ceiling the screen allows. Fail
Interest-bearing cash 0.84% Below 33% Cash held in interest-bearing accounts and securities is 0.8% of assets, under the one-third limit. Pass
Receivables 11.27% Below 49% Money owed to the company is 11.3% of assets, under the 49% limit. Pass
Revenue purity 0.12% Below 5% Only 0.1% of revenue comes from non-compliant sources, under the 5% line. Pass

Five checks adapted from AAOIFI screening standards: business activity plus four balance-sheet ratios. All five must pass for ethical clearance. Every figure is arithmetic on public accounts, not judgement.

The Ethical Read

Why It Falls Short, in Plain English

Quest Diagnostics's business is in a permissible area, but its interest-bearing debt is about 41% of the company, well over the ~33% line, so it does not pass on the financial screens.

Read as at 2026-11-07. It updates when the underlying figures move, and past reads are kept below.

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Today DGX does not pass the screen. If new figures move it to a pass, we send you one short email with the before and after. Verdicts change rarely, so you may not hear from us for a long time.

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What the Numbers Say It Is Worth

The Fair Value Range

Our analysis reads Fair vs our fair value, as of 6 Nov 2026: it trades at roughly a 1% discount to our $258.83 fair value, narrow competitive moat, 10.00% revenue growth.

How a fair value is estimated: discounted cash flow (DCF).

211.50Conservative258.83Base case322.07Growth case 255.63Price

Fair value range in USD, drawn from the 2026-11-06 screen. The gold marker is the market price at the same screen. A 1.2% discount to the base estimate.

The Street's Range
235.00Street low 260.00Street average 279.00Street high 255.63Price

Third-party analyst targets: 15 covering, consensus Buy. The average target sits +2% from the screen price.

Reading the gap · Our model and the Street both land near the screened price: fairly valued, with no strong edge either way.

Price History & Projections

Where our models see it going: fair-value estimate $258.83, with a range of $211.50 to $322.07, dated to the 2026-11-06 screen.

Fair value and rating are our own model estimates; the Street's range reflects third-party analyst estimates. Analysis, not advice.

The Business, in Plain Words

Quest Diagnostics trips on its own debt

Picture a routine blood test or cancer screen, the kind millions rely on each year. Quest runs those labs across the US and pulls in steady demand, yet the business still fails our ethical screen on debt ratio. That single red flag is enough to keep us away even though revenue is growing 9 percent and ROE sits at 15 percent.

We pass because the ethical test comes first. A narrow moat and forward P/E of 18.1 times do not change the fact that leverage sits outside our limits. Analyst chatter and a modest gap to fair value cannot override that hard rule.

The real risk is that high debt leaves little room if volumes soften or reimbursement rates tighten. A 9 percent profit margin offers thin protection in a sector where pricing pressure never really goes away. Analysis, not advice.

The fundamentals · plain-English read
Forward P/E21.0xexpensive even after accounting for its growth
Trailing P/E25.1xa premium valuation
EPS, trailing10.04
EPS, forward11.98
Revenue growth+10.0%steady growth
Profit margin9.5%thin but positive margins
Return on equity15.3%a solid return on shareholder capital
FCF yield3.14%
Dividend yield184.00%
Debt to equity0.80moderate, manageable leverage
Current ratio1.70healthy short-term liquidity
Beta0.54steadier than the market
Short interest, float0.03%
52-week range171.18 - 256.99
MoatNARROW
Market cap$27.8B
Employees57,000

Another profit measure, before interest, tax and non-cash costs: EBITDA.

The risks · The main risks here are ordinary market swings and the chance our fair-value read proves too optimistic.

Plain-English interpretation of our own screen data. Analysis, not advice.

Where & How to Trade

DGX trades on a US exchange. As a listed security it is accessible through almost any international broker offering its home market. New to this, or investing from abroad? Our guide to accessing global markets covers brokers, currencies and the practical steps.

The Dated Journal · Newest First, Never Edited

Every Entry, As Written

2026-11-05 Accumulation $255.68 +5.7% Entry 17

The analysis reads accumulation. Smart money appears to be quietly building positions. This typically precedes a markup phase. Price has moved up 5.7% since our last review. Ethical screening: FAIL. This security does not pass our values-based screening criteria. The risk-adjusted return profile shows excellent risk-adjusted returns. Our composite framework grades it B, carrying a low risk profile. Technically it is holding around 17% above its long-term trend line with momentum reading bullish. Over the past year the shares are up 17%. Our forward projection puts the odds of a 10% gain over the next month near 16%. The street (16 analysts) rates it buy, with a mean price target of $223.

2026-10-29 Accumulation · changed $241.89 +2.9% Entry 16

The framework has shifted from distribution to accumulation since the last review. Smart money appears to be quietly building positions. This typically precedes a markup phase. Price has moved up 2.9% since our last review. Ethical screening: FAIL. This security does not pass our values-based screening criteria. The risk-adjusted return profile shows excellent risk-adjusted returns. Our composite framework grades it B, carrying a low risk profile. Technically it is holding around 17% above its long-term trend line with momentum reading bullish. Over the past year the shares are up 17%. Our forward projection puts the odds of a 10% gain over the next month near 16%. The street (16 analysts) rates it buy, with a mean price target of $223.

2026-10-22 Distribution $235.00 +0.0% Entry 15

The analysis reads distribution. Smart money appears to be selling into strength. Institutional holders may be rotating out. Price has moved down 0.0% since our last review. Ethical screening: FAIL. This security does not pass our values-based screening criteria. The risk-adjusted return profile shows excellent risk-adjusted returns. Our composite framework grades it C, carrying a low risk profile. Technically it is holding around 17% above its long-term trend line with momentum reading neutral. Over the past year the shares are up 17%. Our forward projection puts the odds of a 10% gain over the next month near 16%. The street (16 analysts) rates it buy, with a mean price target of $223. It reported earnings in this window, a natural checkpoint for the thesis.

2026-10-21 Distribution $235.00 +0.0% Entry 14

The analysis reads distribution. Smart money appears to be selling into strength. Institutional holders may be rotating out. Price has moved down 0.0% since our last review. Ethical screening: FAIL. This security does not pass our values-based screening criteria. The risk-adjusted return profile shows excellent risk-adjusted returns. Our composite framework grades it C, carrying a low risk profile. Technically it is holding around 17% above its long-term trend line with momentum reading neutral. Over the past year the shares are up 17%. Our forward projection puts the odds of a 10% gain over the next month near 16%. The street (16 analysts) rates it buy, with a mean price target of $223. It reported earnings in this window, a natural checkpoint for the thesis.

2026-10-20 Distribution $235.00 +0.0% Entry 13

The analysis reads distribution. Smart money appears to be selling into strength. Institutional holders may be rotating out. Price has moved down 0.0% since our last review. Ethical screening: FAIL. This security does not pass our values-based screening criteria. The risk-adjusted return profile shows excellent risk-adjusted returns. Our composite framework grades it C, carrying a low risk profile. Technically it is holding around 17% above its long-term trend line with momentum reading neutral. Over the past year the shares are up 17%. Our forward projection puts the odds of a 10% gain over the next month near 16%. The street (16 analysts) rates it buy, with a mean price target of $223. It reported earnings in this window, a natural checkpoint for the thesis.

2026-10-19 Distribution $235.00 +0.0% Entry 12

The analysis reads distribution. Smart money appears to be selling into strength. Institutional holders may be rotating out. Price has moved down 0.0% since our last review. Ethical screening: FAIL. This security does not pass our values-based screening criteria. The risk-adjusted return profile shows excellent risk-adjusted returns. Our composite framework grades it C, carrying a low risk profile. Technically it is holding around 17% above its long-term trend line with momentum reading neutral. Over the past year the shares are up 17%. Our forward projection puts the odds of a 10% gain over the next month near 16%. The street (16 analysts) rates it buy, with a mean price target of $223. It reported earnings in this window, a natural checkpoint for the thesis.

2026-10-18 Distribution $235.00 +0.0% Entry 11

The analysis reads distribution. Smart money appears to be selling into strength. Institutional holders may be rotating out. Price has moved down 0.0% since our last review. Ethical screening: FAIL. This security does not pass our values-based screening criteria. The risk-adjusted return profile shows excellent risk-adjusted returns. Our composite framework grades it B, carrying a low risk profile. Technically it is holding around 3% above its long-term trend line with momentum reading neutral. Over the past year the shares are up 17%. Our forward projection puts the odds of a 10% gain over the next month near 16%. The street (16 analysts) rates it buy, with a mean price target of $223. It reported earnings in this window, a natural checkpoint for the thesis.

2026-10-17 Distribution $235.00 -1.7% Entry 10

The analysis reads distribution. Smart money appears to be selling into strength. Institutional holders may be rotating out. Price has moved down 1.7% since our last review. Ethical screening: FAIL. This security does not pass our values-based screening criteria. The risk-adjusted return profile shows excellent risk-adjusted returns. Our composite framework grades it B, carrying a low risk profile. Technically it is holding around 3% above its long-term trend line with momentum reading neutral. Over the past year the shares are up 17%. Our forward projection puts the odds of a 10% gain over the next month near 16%. The street (16 analysts) rates it buy, with a mean price target of $223. It reported earnings in this window, a natural checkpoint for the thesis.

2026-10-16 Distribution $239.15 +3.5% Entry 9

The analysis reads distribution. Smart money appears to be selling into strength. Institutional holders may be rotating out. Price has moved up 3.5% since our last review. Ethical screening: FAIL. This security does not pass our values-based screening criteria. The risk-adjusted return profile shows excellent risk-adjusted returns. Our composite framework grades it B, carrying a low risk profile. Technically it is holding around 3% above its long-term trend line with momentum reading neutral. Over the past year the shares are up 17%. Our forward projection puts the odds of a 10% gain over the next month near 16%. The street (16 analysts) rates it buy, with a mean price target of $223. It reported earnings in this window, a natural checkpoint for the thesis.

2026-10-15 Distribution · changed $230.97 -2.8% Entry 8

The framework has shifted from markup to distribution since the last review. Smart money appears to be selling into strength. Institutional holders may be rotating out. Price has moved down 2.8% since our last review. Ethical screening: FAIL. This security does not pass our values-based screening criteria. The risk-adjusted return profile shows excellent risk-adjusted returns. Our composite framework grades it B, carrying a low risk profile. Technically it is holding around 3% above its long-term trend line with momentum reading neutral. Over the past year the shares are up 17%. Our forward projection puts the odds of a 10% gain over the next month near 16%. The street (16 analysts) rates it buy, with a mean price target of $223. It reported earnings in this window, a natural checkpoint for the thesis.

Each entry above was written on its date, before the outcome. A journal you can prune is not a journal.

Latest News · What the Market Is Reading on DGX

Headlines from third-party outlets, linked for reference: not our reporting, not advice.

Related Securities · Others in DGX's Space

Screened names in the same industry · explore each on its own page.

The Insider Ledger · Form 4 Filings, As Filed
Most recent filings · DGX
DateInsiderTitleTypeSharesValue
2026-10-26 Pfeiffer Gary M Dir S - Sale 1,203 $292,329
2026-04-20 PLEWMAN PATRICK Officer 49 $9,540
2026-04-20 LASSITER WRIGHT III Director 6 $1,168
2026-04-20 KUPPUSAMY KARTHIK Officer 39 $7,593
2026-04-20 DELANEY MARK E Officer 37 $7,204
2026-04-20 GREGG VICKY B Director 68 $13,239
2026-04-20 SAMAD SAMER ABDUL Chief Financial Officer 108 $21,027
2026-03-09 WENTWORTH TIMOTHY CHARLES Director 215 ·
2026-03-05 PREVOZNIK MICHAEL E General Counsel 3,878 $799,682
2026-03-05 DOHERTY CATHERINE T Officer 5,558 $1,146,115

Public filings, recorded as found. The full tape lives at Insider Intelligence.

The Political Ledger · Congressional Disclosures
Disclosures naming DGX
DatePoliticianPartyTypeAmount
2026-09-04 Ro Khanna Democrat buy 1K–15K
2026-09-04 Ro Khanna Democrat buy 1K–15K
2026-03-27 Alan Armstrong Republican buy 1K–15K
2025-10-30 Julie Johnson Democrat sell 1K–15K
2025-10-30 Julie Johnson Democrat buy 1K–15K
What Holding Actually Paid · Price Plus Dividends
If $1,000 had been placed · historical, not a promise
PeriodPrice thenPrice returnDivs per share$1,000 becameTotal return
1 month $189.81 +7.0% · $1,070 +7.0%
2 months $191.51 +6.1% · $1,061 +6.1%
3 months $200.01 +1.6% $0.86 $1,020 +2.0%
6 months $179.96 +12.9% $1.66 $1,138 +13.8%
1 year $174.30 +16.5% $3.26 $1,184 +18.4%
2 years $136.20 +49.1% $6.31 $1,538 +53.8%
3 years $126.73 +60.3% $9.19 $1,675 +67.5%
5 years $115.43 +76.0% $14.40 $1,884 +88.4%

Historical returns from market close data. Past performance does not guarantee future results.

The Ledger's Promise

This entry now belongs to the ledger. Whatever DGX does next, these words stay.

Quest Diagnostics · DGX · Markup · $255.63
Recorded 2026-11-06 · before the outcome · scored mechanically

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