SafetyMargin.ioSafetyMargin.io
BlogWatchlistCompare
Compare Stocks › LLY vs SNDK

Eli Lilly and Company (LLY) vs Sandisk Corporation (SNDK): Which Is the Better Buy in 2026?

As of 2026-11-01, LLY is fairly valued at $1418, with a DCF intrinsic value of $1710 and a margin of safety of 17%. SNDK is undervalued at $1151, with an intrinsic value of $4891 and a margin of safety of 76%. Of the two, SNDK has the wider margin of safety.

LLY
Eli Lilly and Company
$1417.54
VS
SNDK
Sandisk Corporation
$1150.89

Rewards

LLY
  • ★Eli Lilly and Company has maintained ROIC above 15% for 4 consecutive years, indicating a durable competitive advantage.
  • ★Gross margin of 83.6% 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.
SNDK
  • ★Gross margin of 80.0% indicates strong pricing power — typical of businesses with significant intellectual property or brand strength.
  • ★Each dollar of retained earnings has created $16.26 of earning power — management is an exceptional capital allocator.
  • ★Altman Z-Score of 18.60 indicates very low bankruptcy risk — the company is firmly in the safe zone.

Risks

LLY
  • ⚠FCF yield of 0.7% is below 3%, meaning the market is pricing in substantial future growth to justify the current price.
  • ⚠Insiders have sold $10.0M worth of stock in the past 3 months — significant insider liquidation.
SNDK
  • ⚠FCF yield of 6.9% suggests reasonable valuation assuming continued moderate growth.
  • ⚠7 insider sales totaling $119.4M with no purchases in the past 3 months — insiders are reducing their exposure.

Key Valuation Metrics

Learn more →
LLY
SNDK
Valuation
$9.34B
Free Cash Flow
$11.24B
0.74%
FCF Yield
6.86%
46.01
Trailing P/E
9.20
28.66
Forward P/E
4.03
Quality & Moat
40.83%
ROIC
99.32%
86.02%
ROE
141.17%
83.63%
Gross Margin
79.95%
1.36
PEG Ratio
N/A
Balance Sheet Safety
1.11
Net Debt / Equity
Net cash
N/A
Interest Coverage
N/A
0.96
Net Debt / EBITDA
-0.24
0.49%
Dividend Yield
0.00%
LLY: 1Ties: 2SNDK: 8
LLYSNDK

Historical Fundamentals

Learn more →
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.

SNDK

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

Learn more →
LLY
$27.49
created per $1 retained over 3 years
Exceptional Value Creator
Σ Retained
$22.34B
Δ Market Cap
+$614.01B
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
SNDK
$11.67
created per $1 retained over 1 year
Exceptional Value Creator
Σ Retained
$11.43B
Δ Market Cap
+$133.37B
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

Learn more →
LLY
17.1% Margin of Safety
Price is 17.1% below estimated fair value
Current Price: $1417.54
Fair Value: $1709.89
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
SNDK
76.5% Margin of Safety
Price is 76.5% below estimated fair value
Current Price: $1150.89
Fair Value: $4891.46
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued

Reverse DCF — Market-Implied Growth

Learn more →
LLY

What growth rate is the market pricing in at $1418?

+23.5%
Market-Implied Owner Earnings Growth
Standard FCF implies +34.7%

The market implies +23.5% Owner Earnings growth, below historical trends — potential opportunity.

Standard FCF implies a more demanding +34.7%, reflecting heavy growth investment expected to generate future returns.

SNDK

What growth rate is the market pricing in at $1151?

+2.7%
Market-Implied Owner Earnings Growth
Standard FCF implies +3.0%

Economic Moat Score

Learn more →
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.
SNDK
33/100
No Moat
70+ Wide · 40-69 Narrow · <40 None

No durable moat detected, though reinvestment efficiency shows some competitive positioning. The business lacks consistent evidence of sustainable advantages.

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 →
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.
SNDK

Insufficient data for Beneish M-Score calculation (requires 2+ years).

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 →
LLY
Insiders 0.2%Institutions 85.5%Retail & Other 14.4%
No. of Institutional Holders5,906
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.
SNDK
Insiders 1.1%Institutions 82.8%Retail & Other 16.1%
No. of Institutional Holders2,370
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 →
LLY
0
Buys (3M)
0
Buys (12M)
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
Open market purchases · includes direct & indirect ownership · excludes option exercises
SNDK
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 →
LLY
2
Sells (3M)
27
Sells (12M)
Total value (12M): $2.40B
JONSSON PATRIK
Officer
$7.64M
@ $1175.10 · 2026-08-17
ZAKROWSKI DONALD A
Officer
$2.37M
@ $1185.01 · 2026-08-10
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
LILLY ENDOWMENT, INC.
Beneficial Owner of more than 10% of a Class of Security
$48.02M
@ $1030.26 · 2025-11-13
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
$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
$38.47M
@ $951.56 · 2025-11-05
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
$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
Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives
SNDK
7
Sells (3M)
15
Sells (12M)
Total value (12M): $132.73M
GOECKELER DAVID V
Chief Executive Officer
$53.27M
@ $1574.21 · 2026-09-17
VISOSO LOMELIN LUIS FELIPE
Chief Financial Officer
$1.57M
@ $1568.83 · 2026-09-15
GOECKELER DAVID V
Chief Executive Officer
$51.70M
@ $1527.87 · 2026-09-14
SHEK BERNARD
Officer
$4.08M
@ $1767.33 · 2026-09-08
ILKBAHAR ALPER
Chief Technology Officer
$7.26M
@ $1540.58 · 2026-09-03
ILKBAHAR ALPER
Chief Technology Officer
$625,557
@ $1563.89 · 2026-09-03
SHEK BERNARD
Officer
$915,360
@ $1525.60 · 2026-09-01
SHEK BERNARD
Officer
$697,296
@ $1162.16 · 2026-08-03
SHEK BERNARD
Officer
$1.25M
@ $2088.00 · 2026-07-01
SHEK BERNARD
Officer
$1.04M
@ $1736.00 · 2026-06-03
ILKBAHAR ALPER
Chief Technology Officer
$3.51M
@ $1756.58 · 2026-06-01
POKORNY MICHAEL
Officer
$3.49M
@ $1426.18 · 2026-05-12
SAYINER NECIP
Director
$870,301
@ $1503.11 · 2026-05-08
SUZUKI MIYUKI
Director
$2.20M
@ $627.53 · 2026-02-25
SAYINER NECIP
Director
$248,027
@ $195.14 · 2025-12-03
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 →
LLY
FearGreed
😏Greed(73/100)

"Market is optimistic — be cautious and ensure you have a margin of safety"

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.
SNDK
FearGreed
😨Fear(34/100)

"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 →
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: Greed (73)
SNDK
⚪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 (34)
View LLY Full AnalysisView SNDK Full Analysis

Frequently Asked Questions: LLY vs SNDK

Is Eli Lilly and Company or Sandisk Corporation more undervalued in 2026?▼

Based on our discounted cash flow model, SNDK trades at a 76.5% margin of safety (intrinsic value $4891 vs. price $1151), compared to LLY's 17.1% margin of safety (intrinsic $1710 vs. $1418).

Which stock has a wider economic moat, Eli Lilly and Company or Sandisk Corporation?▼

LLY scores 73/100 (Wide moat), while SNDK scores 33/100 (None moat). The moat score measures competitive advantage durability across ROIC consistency, margin stability, revenue predictability, and reinvestment efficiency.

Which company has better free cash flow, Eli Lilly and Company or Sandisk Corporation?▼

Sandisk Corporation (SNDK) generates a 6.9% free cash flow yield, compared to Eli Lilly and Company's 0.7%. A higher FCF yield means the business converts more of its market value into cash that can be returned to shareholders or reinvested.

Which stock has higher return on invested capital, Eli Lilly and Company or Sandisk Corporation?▼

SNDK earns 99.3% ROIC versus LLY's 40.8%. A higher ROIC means the company generates more profit per dollar of capital employed, a hallmark of durable competitive advantage in Buffett-style analysis.