Compare StocksORCL vs WDC

Oracle Corporation (ORCL) vs Western Digital Corporation (WDC): Which Is the Better Buy in 2026?

As of 2026-09-17, ORCL is undervalued at $151, with a DCF intrinsic value of $386 and a margin of safety of 61%. WDC is undervalued at $419, with an intrinsic value of $1960 and a margin of safety of 79%. Of the two, WDC has the wider margin of safety.

ORCL
Oracle Corporation
$150.80
VS
WDC
Western Digital Corporation
$419.42

Rewards

ORCL
  • Gross margin of 64.0% indicates strong pricing power — typical of businesses with significant intellectual property or brand strength.
  • Return on equity has consistently exceeded 20% over 4 years, indicating efficient use of shareholder capital.
  • Each dollar of retained earnings has created $3.80 of earning power — management is an exceptional capital allocator.
WDC
  • Each dollar of retained earnings has created $12.03 of earning power — management is an exceptional capital allocator.
  • PEG ratio of 0.81 suggests the stock is undervalued relative to its growth rate — paying less than 1x for each unit of earnings growth.
  • Altman Z-Score of 21.34 indicates very low bankruptcy risk — the company is firmly in the safe zone.

Risks

ORCL
  • Despite buyback spending, shares outstanding increased in 3 out of 4 years — stock-based compensation is offsetting repurchases.
  • High leverage (1.97x net debt/equity) combined with thin interest coverage (-1.0x) poses financial risk.
  • Altman Z-Score of 1.73 places the company in the distress zone — financial patterns resemble those of companies that experienced bankruptcy.
WDC
  • Share count has increased by 12% over the past 4 years, diluting existing shareholders.
  • Despite buyback spending, shares outstanding increased in 3 out of 3 years — stock-based compensation is offsetting repurchases.
  • FCF yield of 2.3% is below 3%, meaning the market is pricing in substantial future growth to justify the current price.

Key Valuation Metrics

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ORCL
WDC
Valuation
$-45.85B
Free Cash Flow
$3.51B
-10.06%
FCF Yield
2.32%
23.64
Trailing P/E
15.57
13.72
Forward P/E
13.21
Quality & Moat
8.55%
ROIC
44.26%
41.19%
ROE
130.85%
63.96%
Gross Margin
48.85%
0.80
PEG Ratio
0.81
Balance Sheet Safety
1.97
Net Debt / Equity
Net cash
N/A
Interest Coverage
N/A
3.84
Net Debt / EBITDA
-0.08
1.40%
Dividend Yield
0.14%
ORCL: 2Ties: 3WDC: 7
ORCLWDC

Historical Fundamentals

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ORCL

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.

WDC

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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ORCL
$5.91
created per $1 retained over 3 years
Exceptional Value Creator
Σ Retained
$25.08B
Δ Market Cap
+$148.27B
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
WDC
$13.68
created per $1 retained over 3 years
Exceptional Value Creator
Σ Retained
$10.13B
Δ Market Cap
+$138.66B
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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ORCL
60.9% Margin of Safety
Price is 60.9% below estimated fair value
Current Price: $150.80
Fair Value: $385.54
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
WDC
78.6% Margin of Safety
Price is 78.6% below estimated fair value
Current Price: $419.42
Fair Value: $1959.86
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued

Reverse DCF — Market-Implied Growth

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ORCL

Requires positive FCF to compute implied growth rate.

WDC

What growth rate is the market pricing in at $419?

+4.8%
Market-Implied Owner Earnings Growth
Standard FCF implies +18.1%

Economic Moat Score

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ORCL
67/100
Narrow Moat
70+ Wide · 40-69 Narrow · <40 None

Narrow moat with revenue predictability as the key competitive advantage. Improving reinvestment efficiency 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.
WDC
40/100
Narrow Moat
70+ Wide · 40-69 Narrow · <40 None

Narrow moat with reinvestment efficiency as the key competitive advantage. Improving margin stability 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.

Forensic Accounting

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ORCL
-2.58
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.
WDC
-0.12
Likely Manipulator
Above -1.78 = likely manipulator · -2.22 to -1.78 = grey zone
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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ORCL
Insiders 38.6%Institutions 43.6%Retail & Other 17.8%
No. of Institutional Holders4,570
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.
WDC
Insiders 0.5%Institutions 91.9%Retail & Other 7.6%
No. of Institutional Holders2,460
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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ORCL
0
Buys (3M)
0
Buys (12M)
FAIRHEAD RONA ALISON
Director
$112,258
@ $233.87 · 2025-07-07
MOORMAN CHARLES W IV
Director
$947,913
@ $172.35 · 2025-02-12
Open market purchases · includes direct & indirect ownership · excludes option exercises
WDC
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

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ORCL
1
Sells (3M)
12
Sells (12M)
Total value (12M): $111.30M
HENLEY JEFFREY O
Officer and Director
$63.66M
@ $159.16 · 2026-06-24
LEVEY STUART A
Officer
$2.64M
@ $176.19 · 2026-04-16
MAGOUYRK CLAYTON M
Chief Executive Officer
$1.55M
@ $155.23 · 2026-02-09
KEHRING DOUGLAS A
Officer
$6.82M
@ $194.89 · 2026-01-15
HURA MARK
Officer
$2.95M
@ $196.89 · 2025-12-24
SELIGMAN NAOMI O
Director
$437,064
@ $196.61 · 2025-12-23
MAGOUYRK CLAYTON M
Chief Executive Officer
$1.93M
@ $192.52 · 2025-12-19
SMITH MARIA
Officer
$2.80M
@ $280.31 · 2025-10-23
MAGOUYRK CLAYTON M
Chief Executive Officer
$11.07M
@ $276.64 · 2025-10-21
LEVEY STUART A
Officer
$5.93M
@ $300.00 · 2025-10-10
SELIGMAN NAOMI O
Director
$641,958
@ $288.91 · 2025-09-26
SICILIA MICHAEL D
Officer
$10.87M
@ $321.16 · 2025-09-23
SICILIA MICHAEL D
Officer
$5.12M
@ $313.60 · 2025-09-16
MAGOUYRK CLAYTON M
President
$6.31M
@ $297.11 · 2025-09-12
SICILIA MICHAEL D
Officer
$4.04M
@ $254.48 · 2025-08-05
SELIGMAN NAOMI O
Director
$770,656
@ $233.32 · 2025-07-16
SMITH MARIA
Officer
$2.33M
@ $232.99 · 2025-07-03
CATZ SAFRA A
Chief Executive Officer
$267.24M
@ $212.01 · 2025-06-27
CATZ SAFRA A
Chief Executive Officer
$794.64M
@ $212.50 · 2025-06-26
CATZ SAFRA A
Chief Executive Officer
$764.01M
@ $206.77 · 2025-06-23
MAGOUYRK CLAYTON M
Officer
$3.21M
@ $214.10 · 2025-06-17
CONRADES GEORGE HENRY
Director
$1.74M
@ $213.49 · 2025-06-17
SELIGMAN NAOMI O
Director
$428,562
@ $149.53 · 2025-05-05
SELIGMAN NAOMI O
Director
$291,620
@ $145.81 · 2025-04-02
CATZ SAFRA A
Chief Executive Officer
$705.46M
@ $185.40 · 2025-01-24
Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives
WDC
8
Sells (3M)
37
Sells (12M)
Total value (12M): $62.81M
GUBBI VIDYADHARA K
Officer
$825,472
@ $459.87 · 2026-09-04
TREGILLIS CYNTHIA LOCK
Officer
$194,918
@ $451.20 · 2026-09-04
TREGILLIS CYNTHIA LOCK
Officer
$696,280
@ $469.51 · 2026-08-27
TREGILLIS CYNTHIA LOCK
Officer
$417,339
@ $454.12 · 2026-08-24
TAN IRVING
Chief Executive Officer
$8.90M
@ $444.97 · 2026-08-11
COLE MARTIN I
Director
$1.71M
@ $448.66 · 2026-07-28
COLE MARTIN I
Director
$88,852
@ $462.77 · 2026-07-28
TREGILLIS CYNTHIA LOCK
Officer
$427,941
@ $529.63 · 2026-07-21
COLE MARTIN I
Director
$1.68M
@ $511.16 · 2026-06-09
COLE MARTIN I
Director
$385,924
@ $536.01 · 2026-06-09
TREGILLIS CYNTHIA LOCK
Officer
$235,699
@ $545.60 · 2026-06-05
GUBBI VIDYADHARA K
Officer
$1.38M
@ $556.24 · 2026-06-01
KIDDOO BRUCE E
Director
$396,390
@ $528.52 · 2026-05-28
TREGILLIS CYNTHIA LOCK
Officer
$265,973
@ $509.53 · 2026-05-27
TREGILLIS CYNTHIA LOCK
Officer
$48,640
@ $458.87 · 2026-05-21
DAVIS BRIAN SCOTT
Officer
$5.01M
@ $500.69 · 2026-05-11
GUBBI VIDYADHARA K
Officer
$2.07M
@ $443.19 · 2026-05-04
TAN IRVING
Chief Executive Officer
$8.24M
@ $411.84 · 2026-05-01
TREGILLIS CYNTHIA LOCK
Officer
$136,884
@ $377.09 · 2026-04-21
GUBBI VIDYADHARA K
Officer
$2.17M
@ $255.32 · 2026-03-06
TREGILLIS CYNTHIA LOCK
Officer
$2.50M
@ $268.27 · 2026-03-04
GUBBI VIDYADHARA K
Officer
$2.74M
@ $270.31 · 2026-03-04
COLE MARTIN I
Director
$1.63M
@ $271.67 · 2026-03-02
TREGILLIS CYNTHIA LOCK
Officer
$61,228
@ $286.11 · 2026-02-26
TREGILLIS CYNTHIA LOCK
Officer
$123,662
@ $282.33 · 2026-02-24
DAVIS BRIAN SCOTT
Officer
$2.79M
@ $279.16 · 2026-02-17
TREGILLIS CYNTHIA LOCK
Officer
$1.83M
@ $270.49 · 2026-02-06
TAN IRVING
Chief Executive Officer
$5.11M
@ $255.44 · 2026-02-02
TREGILLIS CYNTHIA LOCK
Officer
$102,363
@ $229.00 · 2026-01-21
GUBBI VIDYADHARA K
Officer
$3.72M
@ $163.16 · 2025-12-05
ALEXY KIMBERLY E.
Director
$320,165
@ $160.08 · 2025-12-04
TREGILLIS CYNTHIA LOCK
Officer
$449,752
@ $160.57 · 2025-12-02
COLE MARTIN I
Director
$975,696
@ $162.62 · 2025-12-01
OULMAN ROXANNE M
Director
$277,956
@ $154.42 · 2025-11-25
ALEXY KIMBERLY E.
Director
$272,272
@ $154.00 · 2025-11-25
COLE MARTIN I
Director
$1.61M
@ $161.32 · 2025-11-05
TAN IRVING
Chief Executive Officer
$3.01M
@ $150.69 · 2025-11-03
GUBBI VIDYADHARA K
Officer
$1.02M
@ $90.29 · 2025-09-04
ZAMISKA GENE M
Officer
$28,558
@ $80.90 · 2025-08-28
ZAMISKA GENE M
Officer
$64,387
@ $79.10 · 2025-08-26
TREGILLIS CYNTHIA LOCK
Officer
$1.05M
@ $74.78 · 2025-08-22
ZAMISKA GENE M
Officer
$375,847
@ $75.35 · 2025-08-22
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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ORCL
FearGreed
😨Fear(35/100)

"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.
WDC
FearGreed
😨Fear(33/100)

"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

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ORCL
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 (35)
WDC
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 (33)
View ORCL Full AnalysisView WDC Full Analysis

Frequently Asked Questions: ORCL vs WDC

Is Oracle Corporation or Western Digital Corporation more undervalued in 2026?

Based on our discounted cash flow model, WDC trades at a 78.6% margin of safety (intrinsic value $1960 vs. price $419), compared to ORCL's 60.9% margin of safety (intrinsic $386 vs. $151).

Which stock has a wider economic moat, Oracle Corporation or Western Digital Corporation?

ORCL scores 67/100 (Narrow moat), while WDC scores 40/100 (Narrow moat). The moat score measures competitive advantage durability across ROIC consistency, margin stability, revenue predictability, and reinvestment efficiency.

Is Oracle Corporation in financial distress?

ORCL's Altman Z-Score of 1.7 places it in the Distress zone, signaling elevated bankruptcy risk. WDC scores 21.3 (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 company has better free cash flow, Oracle Corporation or Western Digital Corporation?

Western Digital Corporation (WDC) generates a 2.3% free cash flow yield, compared to Oracle Corporation's -10.1%. 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, Oracle Corporation or Western Digital Corporation?

WDC earns 44.3% ROIC versus ORCL's 8.5%. 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, Oracle Corporation's or Western Digital Corporation's?

WDC's dividend earns a safety score of 88/100 (Very Safe), compared to ORCL's 79/100 (Safe). WDC has raised its dividend for 1 consecutive years.

Does Western Digital Corporation have accounting red flags?

WDC's Beneish M-Score of -0.1 flags it as a likely earnings manipulator (above the -1.78 threshold). By contrast, ORCL scores -2.6, within the normal range. The Beneish model detects aggressive accounting through eight financial ratios.

ORCL vs WDC: Which Is the Better Buy in 2026? | SafetyMargin.io