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Compare Stocks › DAL vs LLY

Delta Air Lines, Inc. (DAL) vs Eli Lilly and Company (LLY): Which Is the Better Buy in 2026?

As of 2026-08-03, DAL is undervalued at $87, with a DCF intrinsic value of $289903832726 and a margin of safety of 100%. LLY is undervalued at $1149, with an intrinsic value of $1529604356065 and a margin of safety of 100%. Of the two, DAL has the wider margin of safety.

DAL
Delta Air Lines, Inc.
$87.44
VS
LLY
Eli Lilly and Company
$1148.84

Rewards

DAL
  • ★Return on equity has consistently exceeded 20% over 4 years, indicating efficient use of shareholder capital.
  • ★Each dollar of retained earnings has created $3.36 of earning power — management is an exceptional capital allocator.
  • ★PEG ratio of 0.21 suggests the stock is undervalued relative to its growth rate — paying less than 1x for each unit of earnings growth.
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

DAL
  • ⚠Gross margin of 18.7% is low, suggesting a competitive or commodity-like market with limited pricing power.
  • ⚠Trailing P/E of 14.5x is 39% above the historical average of 10.4x — the stock trades at a premium to its own history.
  • ⚠Altman Z-Score of 1.00 places the company in the distress zone — financial patterns resemble those of companies that experienced bankruptcy.
LLY
  • ⚠Insiders have sold $18.6M worth of stock in the past 3 months — significant insider liquidation.

Key Valuation Metrics

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DAL
LLY
Valuation
$3.84B
Free Cash Flow
$9.16B
0.00%
FCF Yield
N/A
14.50
Trailing P/E
40.81
9.87
Forward P/E
25.48
Quality & Moat
9.96%
ROIC
37.80%
20.13%
ROE
107.46%
18.70%
Gross Margin
82.83%
0.21
PEG Ratio
1.61
Balance Sheet Safety
0.75
Net Debt / Equity
1.22
N/A
Interest Coverage
N/A
2.19
Net Debt / EBITDA
1.05
0.89%
Dividend Yield
0.60%
DAL: 5Ties: 1LLY: 5
DALLLY

Historical Fundamentals

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DAL

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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DAL
$0.00
created per $1 retained over 3 years
Value Destroyer
Σ Retained
$12.18B
Δ Market Cap
+$36.54
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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DAL
100.0% Margin of Safety
Price is 100.0% below estimated fair value
Current Price: $87.44
Fair Value: $363731205332.55
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
LLY
100.0% Margin of Safety
Price is 100.0% below estimated fair value
Current Price: $1148.84
Fair Value: $1529604356065.14
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued

Reverse DCF — Market-Implied Growth

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DAL

What growth rate is the market pricing in at $87?

-19.1%
Market-Implied Owner Earnings Growth
Standard FCF implies -14.6%

The market implies -19.1% Owner Earnings growth, below historical trends — potential opportunity.

Standard FCF implies a more demanding -14.6%, reflecting heavy growth investment expected to generate future returns.

LLY

What growth rate is the market pricing in at $1149?

-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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DAL
65/100
Narrow Moat
70+ Wide · 40-69 Narrow · <40 None

Narrow moat with revenue predictability 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 5 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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DAL
-2.67
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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DAL
Insiders 6.5%Institutions 83.6%Retail & Other 9.9%
No. of Institutional Holders1,822
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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DAL
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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DAL
4
Sells (3M)
25
Sells (12M)
Total value (12M): $92.17M
BELLEMARE ALAIN
Officer
$2.04M
@ $81.44 · 2026-05-27
AUSBAND ALLISON C
Officer
$799,500
@ $79.95 · 2026-05-27
AUSBAND ALLISON C
Officer
$1.11M
@ $75.15 · 2026-05-22
BELLEMARE ALAIN
Officer
$1.50M
@ $72.75 · 2026-05-07
LAUGHTER JOHN E.
Chief Operating Officer
$1.07M
@ $71.61 · 2026-04-14
LAUGHTER JOHN E.
Officer
$4.72M
@ $68.15 · 2026-04-10
BASTIAN EDWARD H
Chief Executive Officer
$7.03M
@ $70.26 · 2026-02-26
HAUENSTEIN GLEN W
President
$31.37M
@ $73.47 · 2026-02-09
BELLEMARE ALAIN
Officer
$2.65M
@ $75.20 · 2026-02-09
SEAR STEVEN M
Officer
$2.90M
@ $75.05 · 2026-02-09
CARTER PETER W
Officer
$2.02M
@ $74.82 · 2026-02-06
HAUENSTEIN GLEN W
President
$963,896
@ $71.00 · 2026-02-05
SAMANT RAHUL D
Chief Technology Officer
$4.39M
@ $70.18 · 2026-02-05
CARROLL WILLIAM C
Officer
$406,329
@ $68.10 · 2026-02-02
SNELL ERIK STOREY
Officer
$2.80M
@ $71.01 · 2026-01-16
BELLEMARE ALAIN
Officer
$2.49M
@ $69.21 · 2026-01-15
CARTER PETER W
Officer
$1.01M
@ $70.30 · 2026-01-15
BASTIAN EDWARD H
Chief Executive Officer
$12.30M
@ $71.00 · 2026-01-15
HAUENSTEIN GLEN W
President
$1.40M
@ $70.00 · 2026-01-14
SEAR STEVEN M
Officer
$2.18M
@ $69.69 · 2026-01-14
SAMANT RAHUL D
Chief Technology Officer
$3.97M
@ $69.57 · 2026-01-14
LAUGHTER JOHN E.
Chief Operating Officer
$1.45M
@ $62.33 · 2025-10-21
CARROLL WILLIAM C
Officer
$858,070
@ $61.25 · 2025-10-15
HAUENSTEIN GLEN W
President
$613,070
@ $61.31 · 2025-08-27
HUERTA MICHAEL P
Director
$151,762
@ $60.70 · 2025-08-19
BASTIAN EDWARD H
Chief Executive Officer
$1.97M
@ $56.28 · 2025-07-23
CARTER PETER W
Officer
$1.00M
@ $57.19 · 2025-07-15
SEAR STEVEN M
Officer
$1.01M
@ $55.96 · 2025-07-15
BELLEMARE ALAIN
Officer
$2.52M
@ $55.56 · 2025-07-11
SAMANT RAHUL D
Officer
$2.47M
@ $64.89 · 2025-02-11
SAMANT RAHUL D
Chief Technology Officer
$1.24M
@ $69.08 · 2025-02-05
CARROLL WILLIAM C
Officer
$447,285
@ $65.94 · 2025-02-03
BASTIAN EDWARD H
Chief Executive Officer
$6.41M
@ $69.85 · 2025-01-22
CARROLL WILLIAM C
Officer
$554,534
@ $66.02 · 2025-01-17
SMITH JOANNE D
Officer
$1.53M
@ $64.00 · 2024-11-21
CARROLL WILLIAM C
Officer
$1.31M
@ $60.62 · 2024-11-08
SAMANT RAHUL D
Officer
$1.16M
@ $62.13 · 2024-11-07
HAUENSTEIN GLEN W
President
$2.50M
@ $62.56 · 2024-11-06
AUSBAND ALLISON C
Officer
$470,306
@ $62.62 · 2024-11-06
SEAR STEVEN M
Officer
$603,542
@ $58.72 · 2024-11-01
HAUENSTEIN GLEN W
President
$4.37M
@ $58.30 · 2024-10-31
SAMANT RAHUL D
Officer
$585,330
@ $58.53 · 2024-10-30
BASTIAN EDWARD H
Chief Executive Officer
$3.83M
@ $56.33 · 2024-10-28
SAMANT RAHUL D
Officer
$554,800
@ $55.48 · 2024-10-17
BELLEMARE ALAIN
Officer
$1.08M
@ $55.26 · 2024-10-17
CARTER PETER W
Officer
$1.01M
@ $55.78 · 2024-10-16
SMITH JOANNE D
Officer
$173,132
@ $50.46 · 2024-10-11
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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DAL
FearGreed
😐Neutral(59/100)

"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(59/100)

"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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DAL
⚪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 (59)
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 (59)
View DAL Full AnalysisView LLY Full Analysis

Frequently Asked Questions: DAL vs LLY

Is Delta Air Lines, Inc. or Eli Lilly and Company more undervalued in 2026?▼

Based on our discounted cash flow model, DAL trades at a 100.0% margin of safety (intrinsic value $289903832726 vs. price $87), compared to LLY's 100.0% margin of safety (intrinsic $1529604356065 vs. $1149).

Which stock has a wider economic moat, Delta Air Lines, Inc. or Eli Lilly and Company?▼

LLY scores 73/100 (Wide moat), while DAL scores 65/100 (Narrow moat). The moat score measures competitive advantage durability across ROIC consistency, margin stability, revenue predictability, and reinvestment efficiency.

Is Delta Air Lines, Inc. in financial distress?▼

DAL's Altman Z-Score of 1.0 places it in the Distress zone, signaling elevated bankruptcy risk. LLY scores 2.0 (Grey 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, Delta Air Lines, Inc. or Eli Lilly and Company?▼

LLY earns 37.8% ROIC versus DAL's 10.0%. A higher ROIC means the company generates more profit per dollar of capital employed, a hallmark of durable competitive advantage in Buffett-style analysis.

Which dividend is safer, Delta Air Lines, Inc.'s or Eli Lilly and Company's?▼

DAL's dividend earns a safety score of 91/100 (Very Safe), compared to LLY's 64/100 (Safe). DAL has raised its dividend for 2 consecutive years.

DAL vs LLY: Which Is the Better Buy in 2026? | SafetyMargin.io