Compare Stocks › DGX vs QCOM
Quest Diagnostics Incorporated (DGX) vs QUALCOMM Incorporated (QCOM)
DGX
Quest Diagnostics Incorporated
$194.16
VS
QCOM
QUALCOMM Incorporated
$131.28
Rewards
DGX
- ★Each dollar of retained earnings has created $1.03 of market value — management is creating shareholder value.
QCOM
- ★QUALCOMM Incorporated has maintained ROIC above 15% for 4 consecutive years, indicating a durable competitive advantage.
- ★QUALCOMM Incorporated scores 73/100 on the Economic Moat Score (Wide Moat), with reinvestment efficiency as the strongest competitive dimension.
- ★Free cash flow has grown at a 23.3% CAGR over the past 4 years, demonstrating strong earnings power growth.
Risks
DGX
- ⚠FCF yield of 6.3% suggests reasonable valuation assuming continued moderate growth.
- ⚠PEG ratio of 2.01 indicates the stock is expensive relative to its expected growth — the market may be pricing in more growth than analysts project.
- ⚠Insiders have sold $10.7M worth of stock in the past 3 months — significant insider liquidation.
QCOM
- ⚠FCF yield of 7.4% suggests reasonable valuation assuming continued moderate growth.
- ⚠Trailing P/E of 26.5x is 28% above the historical average of 20.7x — the stock trades at a premium to its own history.
- ⚠18 insider sales with no purchases over the past 12 months — a persistent pattern of insider selling.
Key Valuation Metrics
Learn more →DGX
QCOM
Valuation
$1.36B
Free Cash Flow
$10.42B
6.29%
FCF Yield
7.43%
22.16
Trailing P/E
26.47
16.91
Forward P/E
11.77
Quality & Moat
8.78%
ROIC
25.70%
13.62%
ROE
24.02%
33.33%
Gross Margin
55.10%
2.01
PEG Ratio
N/A
Balance Sheet Safety
0.90
Debt / Equity
0.64
N/A
Interest Coverage
N/A
2.83
Net Debt / EBITDA
0.22
1.77%
Dividend Yield
2.71%
DGX: 1Ties: 1QCOM: 9
DGXQCOM
Historical Fundamentals
Learn more →DGX
Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation.
QCOM
Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation.
Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation.
$1 Retained Earnings Test
Learn more →DGX
$1.03
created per $1 retained over 3 years
Value Creator
Σ Retained
$1.72B
Δ Market Cap
+$1.77B
Buffett's "$1 Test": For every $1 of earnings retained, has management created at least $1 of market value?
> $1 created per $1 retained = Value Creator · < $1 created = Value Destroyer
> $1 created per $1 retained = Value Creator · < $1 created = Value Destroyer
QCOM
$5.06
created per $1 retained over 3 years
Exceptional Value Creator
Σ Retained
$11.96B
Δ Market Cap
+$60.46B
Buffett's "$1 Test": For every $1 of earnings retained, has management created at least $1 of market value?
> $1 created per $1 retained = Value Creator · < $1 created = Value Destroyer
> $1 created per $1 retained = Value Creator · < $1 created = Value Destroyer
Buffett's "$1 Test": For every $1 of earnings retained, has management created at least $1 of market value?
> $1 created per $1 retained = Value Creator · < $1 created = Value Destroyer
Discounted Cash Flow (DCF) Analysis
Learn more →DGX
40.6% Overvalued
Price is 40.6% above estimated fair value
Current Price: $194.16
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
Fair Value: $138.07
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
QCOM
71.3% Overvalued
Price is 71.3% above estimated fair value
Current Price: $131.28
Strongly undervalued
Fairly valued
Strongly overvalued
Fair Value: $76.62
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
Reverse DCF — Market-Implied Growth
Learn more →DGX
What growth rate is the market pricing in at $194?
+12.3%
Market-Implied Owner Earnings Growth
Standard FCF implies +8.0%
The market implies +12.3% Owner Earnings growth, above historical trends.
Standard FCF implies a demanding +8.0%, reflecting heavy growth investment.
QCOM
What growth rate is the market pricing in at $131?
+11.2%
Market-Implied Owner Earnings Growth
Standard FCF implies +2.6%
The market implies +11.2% Owner Earnings growth, above historical trends.
Standard FCF implies a demanding +2.6%, reflecting heavy growth investment.
Economic Moat Score
Learn more →DGX
56/100
Narrow Moat
70+ Wide · 40-69 Narrow · <40 None
Narrow moat with margin stability as the key competitive advantage. Improving roic consistency would strengthen the moat.
Composite score measuring competitive advantage durability across four dimensions: returns above cost of capital, pricing power stability, revenue predictability, and capital efficiency. Based on 4 years of fundamental data.
QCOM
73/100
Wide Moat
70+ Wide · 40-69 Narrow · <40 None
Wide moat driven primarily by reinvestment efficiency. Revenue Predictability is the area most vulnerable to competitive pressure.
Composite score measuring competitive advantage durability across four dimensions: returns above cost of capital, pricing power stability, revenue predictability, and capital efficiency. Based on 4 years of fundamental data.
Forensic Accounting
Learn more →DGX
-2.66
Unlikely Manipulator
Above -1.78 = likely manipulator · -2.22 to -1.78 = grey zone
M-Score Trend
Beneish's 8-variable model estimates the probability of earnings manipulation. An M-Score above -1.78 signals elevated risk — companies in this range have historically been 3-5× more likely to be manipulating earnings. Scores between -2.22 and -1.78 fall in a grey zone warranting further investigation.
QCOM
-3.16
Unlikely Manipulator
Above -1.78 = likely manipulator · -2.22 to -1.78 = grey zone
M-Score Trend
Beneish's 8-variable model estimates the probability of earnings manipulation. An M-Score above -1.78 signals elevated risk — companies in this range have historically been 3-5× more likely to be manipulating earnings. Scores between -2.22 and -1.78 fall in a grey zone warranting further investigation.
Beneish's 8-variable model estimates the probability of earnings manipulation. An M-Score above -1.78 signals elevated risk — companies in this range have historically been 3-5× more likely to be manipulating earnings. Scores between -2.22 and -1.78 fall in a grey zone warranting further investigation.
Ownership Breakdown
Learn more →DGX
Insiders 0.4%Institutions 100.0%
No. of Institutional Holders1,438
High insider ownership aligns management incentives with shareholders — a key signal in Buffett-style analysis. Institutional concentration can indicate smart-money conviction but also crowding risk.
QCOM
Insiders 0.1%Institutions 81.6%Retail & Other 18.2%
No. of Institutional Holders3,852
High insider ownership aligns management incentives with shareholders — a key signal in Buffett-style analysis. Institutional concentration can indicate smart-money conviction but also crowding risk.
High insider ownership aligns management incentives with shareholders. Institutional concentration can indicate smart-money conviction but also crowding risk.
Insider Buying Activity
Learn more →DGX
5
Buys (3M)
14
Buys (12M)
Total value (12M): $88,239
CARTER ROBERT B
Director
$1,101
@ $183.50 · 2026-01-28
GREGG VICKY B
Director
$12,295
@ $183.51 · 2026-01-28
LASSITER WRIGHT III
Director
$1,285
@ $183.57 · 2026-01-28
KUPPUSAMY KARTHIK
Officer
$2,936
@ $183.50 · 2026-01-28
DELANEY MARK E
Officer
$2,753
@ $183.53 · 2026-01-28
GREGG VICKY B
Director
$13,232
@ $167.49 · 2025-07-21
SAMAD SAMER ABDUL
Chief Financial Officer
$12,060
@ $167.50 · 2025-07-21
LASSITER WRIGHT III
Director
$1,173
@ $167.57 · 2025-07-21
KUPPUSAMY KARTHIK
Officer
$4,522
@ $167.48 · 2025-07-21
DELANEY MARK E
Officer
$2,847
@ $167.47 · 2025-07-21
PLEWMAN PATRICK
Officer
$13,318
@ $164.42 · 2025-04-21
SAMAD SAMER ABDUL
Chief Financial Officer
$12,167
@ $164.42 · 2025-04-21
KUPPUSAMY KARTHIK
Officer
$4,439
@ $164.41 · 2025-04-21
DELANEY MARK E
Officer
$4,111
@ $164.44 · 2025-04-21
PLEWMAN PATRICK
Officer
$9,008
@ $158.04 · 2025-01-29
GREGG VICKY B
Director
$11,379
@ $158.04 · 2025-01-29
SAMAD SAMER ABDUL
Chief Financial Officer
$5,531
@ $158.03 · 2025-01-29
KUPPUSAMY KARTHIK
Officer
$1,896
@ $158.00 · 2025-01-29
DELANEY MARK E
Officer
$632.00
@ $158.00 · 2025-01-29
PLEWMAN PATRICK
Officer
$8,962
@ $149.37 · 2024-10-21
GREGG VICKY B
Director
$11,352
@ $149.37 · 2024-10-21
SAMAD SAMER ABDUL
Chief Financial Officer
$5,527
@ $149.38 · 2024-10-21
KUPPUSAMY KARTHIK
Officer
$3,137
@ $149.38 · 2024-10-21
DELANEY MARK E
Officer
$598.00
@ $149.50 · 2024-10-21
PLEWMAN PATRICK
Officer
$8,818
@ $146.97 · 2024-07-22
GREGG VICKY B
Director
$11,317
@ $146.97 · 2024-07-22
SAMAD SAMER ABDUL
Chief Financial Officer
$3,086
@ $146.95 · 2024-07-22
KUPPUSAMY KARTHIK
Officer
$4,556
@ $146.97 · 2024-07-22
DELANEY MARK E
Officer
$882.00
@ $147.00 · 2024-07-22
Open market purchases · includes direct & indirect ownership · excludes option exercises
QCOM
0
Buys (3M)
0
Buys (12M)
No open market insider purchases found.
Open market purchases · includes direct & indirect ownership · excludes option exercises
Open market purchases · includes direct & indirect ownership · excludes option exercises.
Insider Selling Activity
Learn more →DGX
12
Sells (3M)
26
Sells (12M)
Total value (12M): $40.24M
PREVOZNIK MICHAEL E
General Counsel
$799,682
@ $206.21 · 2026-03-05
PLEWMAN PATRICK
Officer
$588,730
@ $206.21 · 2026-03-05
DOHERTY CATHERINE T
Officer
$1.15M
@ $206.21 · 2026-03-05
KUPPUSAMY KARTHIK
Officer
$538,372
@ $204.86 · 2026-03-04
PREVOZNIK MICHAEL E
General Counsel
$109,266
@ $207.73 · 2026-03-03
PLEWMAN PATRICK
Officer
$85,169
@ $207.73 · 2026-03-03
DOHERTY CATHERINE T
Officer
$131,285
@ $207.73 · 2026-03-03
PREVOZNIK MICHAEL E
General Counsel
$227,566
@ $204.83 · 2026-02-19
PLEWMAN PATRICK
Officer
$196,227
@ $204.83 · 2026-02-19
DOHERTY CATHERINE T
Officer
$293,521
@ $204.83 · 2026-02-19
DOHERTY CATHERINE T
Officer
$5.39M
@ $206.15 · 2026-02-13
PLEWMAN PATRICK
Officer
$1.16M
@ $204.00 · 2026-02-10
DAVIS J E CAUSEY
Chief Executive Officer
$10.59M
@ $192.22 · 2025-11-25
GREGG VICKY B
Director
$239,700
@ $191.76 · 2025-11-25
DELANEY MARK E
Officer
$1.49M
@ $187.35 · 2025-11-18
PFEIFFER GARY M
Director
$270,317
@ $182.40 · 2025-10-22
PREVOZNIK MICHAEL E
General Counsel
$42,706
@ $188.13 · 2025-09-26
PREVOZNIK MICHAEL E
General Counsel
$5.33M
@ $187.12 · 2025-09-24
PLEWMAN PATRICK
Officer
$365,375
@ $185.00 · 2025-08-21
PLEWMAN PATRICK
Officer
$829,356
@ $183.00 · 2025-08-19
PLEWMAN PATRICK
Officer
$355,500
@ $180.00 · 2025-08-15
PLEWMAN PATRICK
Officer
$968,625
@ $175.00 · 2025-08-06
KUPPUSAMY KARTHIK
Officer
$1.76M
@ $167.95 · 2025-07-31
DELANEY MARK E
Officer
$306,800
@ $175.51 · 2025-05-13
KUPPUSAMY KARTHIK
Officer
$434,350
@ $170.00 · 2025-04-02
DAVIS JAMES E
Chief Executive Officer
$6.60M
@ $168.46 · 2025-04-02
PREVOZNIK MICHAEL E
General Counsel
$789,310
@ $170.00 · 2025-03-17
DOHERTY CATHERINE T
Officer
$935,078
@ $174.13 · 2025-03-05
PREVOZNIK MICHAEL E
General Counsel
$104,068
@ $175.79 · 2025-03-04
DOHERTY CATHERINE T
Officer
$125,866
@ $175.79 · 2025-03-04
PREVOZNIK MICHAEL E
General Counsel
$91,138
@ $172.61 · 2025-02-27
DOHERTY CATHERINE T
Officer
$142,231
@ $172.61 · 2025-02-27
PREVOZNIK MICHAEL E
General Counsel
$103,278
@ $170.99 · 2025-02-20
DOHERTY CATHERINE T
Officer
$244,515
@ $170.51 · 2025-02-20
PLEWMAN PATRICK
Officer
$54,307
@ $169.71 · 2025-02-19
GREGG VICKY B
Director
$205,710
@ $164.57 · 2025-02-05
DELANEY MARK E
Officer
$66,214
@ $164.30 · 2025-02-05
PREVOZNIK MICHAEL E
General Counsel
$5.73M
@ $163.07 · 2024-11-29
DOHERTY CATHERINE T
Officer
$5.40M
@ $162.99 · 2024-11-27
DEPPE MICHAEL J
Officer
$2.89M
@ $154.05 · 2024-11-06
KUPPUSAMY KARTHIK
Officer
$278,525
@ $156.92 · 2024-10-28
PREVOZNIK MICHAEL E
General Counsel
$5.04M
@ $154.97 · 2024-08-29
KUPPUSAMY KARTHIK
Officer
$304,990
@ $153.26 · 2024-08-28
DELANEY MARK E
Officer
$60,094
@ $143.08 · 2024-07-24
KUPPUSAMY KARTHIK
Officer
$246,400
@ $140.00 · 2024-04-29
Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives
QCOM
3
Sells (3M)
18
Sells (12M)
Total value (12M): $12.83M
PALKHIWALA AKASH J
Chief Operating Officer
$330,815
@ $132.33 · 2026-03-12
PALKHIWALA AKASH J
Chief Operating Officer
$458,799
@ $137.65 · 2026-02-06
PALKHIWALA AKASH J
Chief Operating Officer
$577,620
@ $173.30 · 2026-01-02
PALKHIWALA AKASH J
Chief Operating Officer
$2.20M
@ $175.29 · 2025-12-19
ROGERS ALEXANDER H
Officer
$2.83M
@ $178.01 · 2025-12-16
CHAPLIN ANN C
General Counsel
$1.28M
@ $178.03 · 2025-12-16
PALKHIWALA AKASH J
Chief Operating Officer
$567,702
@ $170.33 · 2025-11-07
PALKHIWALA AKASH J
Chief Operating Officer
$1.38M
@ $166.06 · 2025-10-20
PALKHIWALA AKASH J
Chief Operating Officer
$522,808
@ $156.86 · 2025-09-02
MARTIN NEIL A
Officer
$122,463
@ $154.82 · 2025-08-21
PALKHIWALA AKASH J
Chief Operating Officer
$493,610
@ $148.10 · 2025-08-04
PALKHIWALA AKASH J
Chief Operating Officer
$537,560
@ $161.28 · 2025-07-02
PALKHIWALA AKASH J
Chief Operating Officer
$486,965
@ $146.10 · 2025-06-02
MARTIN NEIL A
Officer
$120,808
@ $153.70 · 2025-05-21
PALKHIWALA AKASH J
Chief Operating Officer
$465,846
@ $139.77 · 2025-05-05
PALKHIWALA AKASH J
Chief Operating Officer
$91,442
@ $141.11 · 2025-04-09
PALKHIWALA AKASH J
Chief Operating Officer
$119,900
@ $132.63 · 2025-04-08
PALKHIWALA AKASH J
Chief Operating Officer
$235,262
@ $132.10 · 2025-04-04
PALKHIWALA AKASH J
Chief Operating Officer
$523,292
@ $156.82 · 2025-03-03
MARTIN NEIL A
Officer
$130,074
@ $174.83 · 2025-02-21
PALKHIWALA AKASH J
Chief Operating Officer
$509,397
@ $169.80 · 2025-02-12
ROGERS ALEXANDER H
Officer
$3.28M
@ $169.83 · 2025-02-10
PALKHIWALA AKASH J
Chief Operating Officer
$463,851
@ $154.62 · 2025-01-02
CHAPLIN ANN C
General Counsel
$409,056
@ $158.12 · 2024-12-16
ROGERS ALEXANDER H
Officer
$1.67M
@ $160.59 · 2024-12-10
CHAPLIN ANN C
General Counsel
$1.24M
@ $160.59 · 2024-12-10
PALKHIWALA AKASH J
Chief Operating Officer
$484,617
@ $161.54 · 2024-12-05
MARTIN NEIL A
Officer
$202,120
@ $155.00 · 2024-11-21
PALKHIWALA AKASH J
Chief Operating Officer
$491,349
@ $163.78 · 2024-11-14
THOMPSON JAMES H.
Chief Technology Officer
$1.38M
@ $172.09 · 2024-11-08
CHAPLIN ANN C
General Counsel
$313,779
@ $165.06 · 2024-11-04
ROGERS ALEXANDER H
Officer
$539,157
@ $166.15 · 2024-10-02
THOMPSON JAMES H.
Chief Technology Officer
$1.36M
@ $169.80 · 2024-10-01
PALKHIWALA AKASH J
Chief Operating Officer
$497,848
@ $165.95 · 2024-10-01
MARTIN NEIL A
Officer
$126,224
@ $163.08 · 2024-09-05
THOMPSON JAMES H.
Chief Technology Officer
$1.37M
@ $171.72 · 2024-09-03
PALKHIWALA AKASH J
Chief Operating Officer
$497,980
@ $165.99 · 2024-09-03
PALKHIWALA AKASH J
Chief Operating Officer
$488,662
@ $162.89 · 2024-08-08
THOMPSON JAMES H.
Chief Technology Officer
$1.28M
@ $160.50 · 2024-08-02
PALKHIWALA AKASH J
Chief Operating Officer
$616,815
@ $205.60 · 2024-07-05
THOMPSON JAMES H.
Chief Technology Officer
$1.60M
@ $199.47 · 2024-07-01
THOMPSON JAMES H.
Chief Technology Officer
$1.68M
@ $209.61 · 2024-06-03
PALKHIWALA AKASH J
Chief Operating Officer
$617,299
@ $205.77 · 2024-06-03
Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives
Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives.
🎭 Mr. Market's Mood
Learn more →DGX
😐Neutral(50/100)
"Market is pricing this stock without strong emotion in either direction"
Composite sentiment score based on 6 market signals. Inspired by Buffett's "Mr. Market" allegory — fear = potential opportunity, greed = potential risk. Must be used alongside fundamental analysis, not in isolation.
QCOM
😨Fear(30/100)
"Market is pessimistic — investigate whether fears are temporary or structural"
Composite sentiment score based on 6 market signals. Inspired by Buffett's "Mr. Market" allegory — fear = potential opportunity, greed = potential risk. Must be used alongside fundamental analysis, not in isolation.
Composite sentiment score based on market signals. Inspired by Buffett’s "Mr. Market" allegory — fear = potential opportunity, greed = potential risk. Must be used alongside fundamental analysis, not in isolation.
⚖️ Buffett Signal
Learn more →DGX
⚪Awaiting DCF Data
The Buffett Signal cross-references market sentiment with DCF valuation. Configure the DCF Analysis above to generate a signal.
DCF Margin of Safety: N/AMr. Market's Mood: Neutral (50)
QCOM
⚪Awaiting DCF Data
The Buffett Signal cross-references market sentiment with DCF valuation. Configure the DCF Analysis above to generate a signal.
DCF Margin of Safety: N/AMr. Market's Mood: Fear (30)