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Compare Stocks › IDXX vs LLY

IDEXX Laboratories, Inc. (IDXX) vs Eli Lilly and Company (LLY): Which Is the Better Buy in 2026?

As of 2026-08-03, IDXX is overvalued at $569, with a DCF intrinsic value of $375 and a margin of safety of -52%. LLY is undervalued at $1126, with an intrinsic value of $1529604356065 and a margin of safety of 100%. Of the two, LLY has the wider margin of safety.

IDXX
IDEXX Laboratories, Inc.
$568.74
VS
LLY
Eli Lilly and Company
$1125.57

Rewards

IDXX
  • ★IDEXX Laboratories, Inc. has maintained ROIC above 15% for 4 consecutive years, indicating a durable competitive advantage.
  • ★Gross margin of 62.1% indicates strong pricing power — typical of businesses with significant intellectual property or brand strength.
  • ★IDEXX Laboratories, Inc. scores 99/100 on the Economic Moat Score (Wide Moat), with roic consistency as the strongest competitive dimension.
LLY
  • ★Eli Lilly and Company has maintained ROIC above 15% for 4 consecutive years, indicating a durable competitive advantage.
  • ★Gross margin of 82.8% indicates strong pricing power — typical of businesses with significant intellectual property or brand strength.
  • ★Eli Lilly and Company scores 73/100 on the Economic Moat Score (Wide Moat), with roic consistency as the strongest competitive dimension.

Risks

IDXX
  • ⚠FCF yield of 2.3% is below 3%, meaning the market is pricing in substantial future growth to justify the current price.
  • ⚠PEG ratio of 3.58 indicates the stock is expensive relative to its expected growth — the market may be pricing in more growth than analysts project.
  • ⚠14 insider sales with no purchases over the past 12 months — a persistent pattern of insider selling.
LLY
  • ⚠Insiders have sold $18.6M worth of stock in the past 3 months — significant insider liquidation.

Key Valuation Metrics

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IDXX
LLY
Valuation
$1.04B
Free Cash Flow
$9.16B
2.33%
FCF Yield
N/A
41.85
Trailing P/E
39.98
34.43
Forward P/E
24.97
Quality & Moat
41.94%
ROIC
37.80%
72.91%
ROE
107.46%
62.05%
Gross Margin
82.83%
3.58
PEG Ratio
1.61
Balance Sheet Safety
0.58
Net Debt / Equity
1.22
N/A
Interest Coverage
N/A
0.59
Net Debt / EBITDA
1.05
0.00%
Dividend Yield
0.60%
IDXX: 3Ties: 2LLY: 6
IDXXLLY

Historical Fundamentals

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IDXX

Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation. The dashed forward point is the forward P/E — today's price ÷ analyst consensus EPS.

LLY

Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation. The dashed forward point is the forward P/E — today's price ÷ analyst consensus EPS.

Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation. The dashed forward point is the forward P/E — today's price ÷ analyst consensus EPS.

$1 Retained Earnings Test

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IDXX
$7.20
created per $1 retained over 3 years
Exceptional Value Creator
Σ Retained
$2.79B
Δ Market Cap
+$20.11B
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
LLY
$0.00
created per $1 retained over 3 years
Value Destroyer
Σ Retained
$22.34B
Δ Market Cap
+$708.84
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

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

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IDXX
51.7% Overvalued
Price is 51.7% above estimated fair value
Current Price: $568.74
Fair Value: $374.97
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
LLY
100.0% Margin of Safety
Price is 100.0% below estimated fair value
Current Price: $1125.57
Fair Value: $1529604356065.14
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued

Reverse DCF — Market-Implied Growth

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IDXX

What growth rate is the market pricing in at $569?

+18.1%
Market-Implied Owner Earnings Growth
Standard FCF implies +18.4%

The market implies +18.1% Owner Earnings growth, above historical trends.

Standard FCF implies a demanding +18.4%, reflecting heavy growth investment.

LLY

What growth rate is the market pricing in at $1126?

-30.0%
Market-Implied Owner Earnings Growth
Standard FCF implies -15.1%

The market implies -30.0% Owner Earnings growth, below historical trends — potential opportunity.

Standard FCF implies a more demanding -15.1%, reflecting heavy growth investment expected to generate future returns.

Economic Moat Score

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IDXX
99/100
Wide Moat
70+ Wide · 40-69 Narrow · <40 None

Wide moat with strength across all dimensions. ROIC Consistency is the standout factor.

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.
LLY
73/100
Wide Moat
70+ Wide · 40-69 Narrow · <40 None

Wide moat driven primarily by roic consistency. Reinvestment Efficiency 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 5 years of fundamental data.

Forensic Accounting

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IDXX
-2.50
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.
LLY
-1.83
Possible 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

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IDXX
Insiders 0.2%Institutions 96.0%Retail & Other 3.7%
No. of Institutional Holders1,846
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.
LLY
Insiders 0.2%Institutions 85.1%Retail & Other 14.8%
No. of Institutional Holders5,685
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

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IDXX
0
Buys (3M)
0
Buys (12M)
No open market insider purchases found.
Open market purchases · includes direct & indirect ownership · excludes option exercises
LLY
0
Buys (3M)
8
Buys (12M)
Total value (12M): $4.54M
MONTARCE LUCAS E
Chief Financial Officer
$494,627
@ $691.79 · 2025-08-15
ALVAREZ RALPH
Director
$500,473
@ $660.25 · 2025-08-13
VAN NAARDEN JACOB S.
Officer
$647,360
@ $647.36 · 2025-08-13
SULZBERGER GABRIELLE
Director
$75,018
@ $641.18 · 2025-08-12
FYRWALD J. ERIK
Director
$1.01M
@ $642.33 · 2025-08-12
RICKS DAVID A
Chief Executive Officer
$1.05M
@ $644.77 · 2025-08-12
SKOVRONSKY DANIEL
Officer
$634,405
@ $634.40 · 2025-08-12
JACKSON JAMERE
Director
$127,913
@ $639.57 · 2025-08-08
Open market purchases · includes direct & indirect ownership · excludes option exercises

Open market purchases · includes direct & indirect ownership · excludes option exercises.

Insider Selling Activity

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IDXX
0
Sells (3M)
14
Sells (12M)
Total value (12M): $70.78M
HUNT NIMRATA K
Officer
$1.12M
@ $634.57 · 2026-03-03
MAZELSKY JONATHAN JAY
Chief Executive Officer
$15.34M
@ $657.55 · 2026-02-26
HUNT NIMRATA K
Officer
$1.78M
@ $661.54 · 2026-02-26
VANDEBROEK SOPHIE V
Director
$920,293
@ $628.62 · 2026-02-17
ERICKSON MICHAEL G
Officer
$3.37M
@ $627.38 · 2026-02-17
FENNELL GEORGE
Officer
$7.34M
@ $646.72 · 2026-02-10
HUNT NIMRATA K
Officer
$6.63M
@ $703.34 · 2025-11-07
SZOSTAK MARGARET ANNE
Director
$1.42M
@ $647.33 · 2025-08-22
ERICKSON MICHAEL G
Officer
$263,813
@ $651.39 · 2025-08-12
HUNT NIMRATA K
Officer
$787,840
@ $656.53 · 2025-08-11
UNDERBERG SHARON E
General Counsel
$3.55M
@ $651.60 · 2025-08-08
MAZELSKY JONATHAN JAY
Chief Executive Officer
$18.49M
@ $631.98 · 2025-08-06
LANE MICHAEL J
Officer
$5.28M
@ $627.74 · 2025-08-06
HUNT NIMRATA K
Officer
$4.50M
@ $630.43 · 2025-08-06
JUNIUS DANIEL M
Director
$1.36M
@ $506.41 · 2025-05-13
VANDEBROEK SOPHIE V
Director
$628,425
@ $491.34 · 2025-05-09
FENNELL GEORGE
Officer
$4.62M
@ $462.53 · 2025-02-10
VANDEBROEK SOPHIE V
Director
$144,630
@ $420.44 · 2024-11-27
Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives
LLY
2
Sells (3M)
40
Sells (12M)
Total value (12M): $3.63B
YUFFA ILYA
Officer
$2.88M
@ $1150.77 · 2026-06-10
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$15.75M
@ $995.36 · 2026-05-06
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$322.38M
@ $1103.48 · 2026-01-07
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$1.51M
@ $1085.01 · 2026-01-05
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$3.90M
@ $1085.04 · 2025-12-29
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$2.85M
@ $1085.17 · 2025-12-24
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$260,409
@ $1085.04 · 2025-12-23
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$161.08M
@ $1095.35 · 2025-11-25
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$17.34M
@ $1109.30 · 2025-11-25
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$152.06M
@ $1068.52 · 2025-11-24
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$111.50M
@ $1058.66 · 2025-11-21
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$39.07M
@ $1051.66 · 2025-11-20
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$176.10M
@ $1051.17 · 2025-11-19
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$62.31M
@ $1034.78 · 2025-11-18
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$10.19M
@ $1030.68 · 2025-11-17
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$183.80M
@ $1030.87 · 2025-11-14
ZAKROWSKI DONALD A
Officer
$1.01M
@ $1010.50 · 2025-11-13
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$48.02M
@ $1030.26 · 2025-11-13
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$308.41M
@ $1011.18 · 2025-11-12
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$279.35M
@ $986.64 · 2025-11-11
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$16.41M
@ $972.52 · 2025-11-10
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$167.09M
@ $933.26 · 2025-11-05
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$38.47M
@ $951.56 · 2025-11-05
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$479,038
@ $910.72 · 2025-11-04
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$266.65M
@ $888.83 · 2025-11-03
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$260.17M
@ $863.35 · 2025-10-31
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$3.16M
@ $863.24 · 2025-10-10
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$9.04M
@ $852.49 · 2025-10-09
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$86.23M
@ $850.27 · 2025-10-08
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$22.72M
@ $848.01 · 2025-10-07
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$137.04M
@ $850.22 · 2025-10-06
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$161.22M
@ $837.93 · 2025-10-03
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$92.50M
@ $821.55 · 2025-10-02
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$107.36M
@ $794.15 · 2025-10-01
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$177.29M
@ $821.47 · 2025-10-01
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$86.79M
@ $763.39 · 2025-09-30
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$18.06M
@ $763.09 · 2025-09-19
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$81.53M
@ $764.65 · 2025-09-18
ZAKROWSKI DONALD A
Officer
$734,930
@ $734.93 · 2025-08-28
YUFFA ILYA
Officer
$783,762
@ $627.01 · 2025-08-11
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$225.42M
@ $805.07 · 2025-07-24
ZAKROWSKI DONALD A
Officer
$716,410
@ $716.41 · 2025-05-27
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

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IDXX
FearGreed
😐Neutral(46/100)

"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.
LLY
FearGreed
😐Neutral(57/100)

"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.

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

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IDXX
⚪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 (46)
LLY
⚪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 (57)
View IDXX Full AnalysisView LLY Full Analysis

Frequently Asked Questions: IDXX vs LLY

Is IDEXX Laboratories, Inc. or Eli Lilly and Company more undervalued in 2026?▼

Based on our discounted cash flow model, LLY trades at a 100.0% margin of safety (intrinsic value $1529604356065 vs. price $1126), compared to IDXX's -51.7% margin of safety (intrinsic $375 vs. $569).

Which stock has a wider economic moat, IDEXX Laboratories, Inc. or Eli Lilly and Company?▼

IDXX scores 99/100 (Wide moat), while LLY scores 73/100 (Wide moat). The moat score measures competitive advantage durability across ROIC consistency, margin stability, revenue predictability, and reinvestment efficiency.

Is Eli Lilly and Company in financial distress?▼

LLY's Altman Z-Score of 2.0 places it in the Grey zone, signaling elevated bankruptcy risk. IDXX scores 23.9 (Safe zone). The Altman Z-Score is a five-factor model that predicts insolvency within two years; scores below 1.81 indicate significant distress.

Which stock has higher return on invested capital, IDEXX Laboratories, Inc. or Eli Lilly and Company?▼

IDXX earns 41.9% ROIC versus LLY's 37.8%. A higher ROIC means the company generates more profit per dollar of capital employed, a hallmark of durable competitive advantage in Buffett-style analysis.