Compare Stocks › ORCL vs WDC
Oracle Corporation (ORCL) vs Western Digital Corporation (WDC)
ORCL
Oracle Corporation
$155.52
VS
WDC
Western Digital Corporation
$316.93
Rewards
ORCL
- ★Oracle Corporation has maintained ROIC above 10% for 4 consecutive years, suggesting solid business economics.
- ★Gross margin of 67.1% indicates strong pricing power — typical of businesses with significant intellectual property or brand strength.
- ★Oracle Corporation scores 71/100 on the Economic Moat Score (Wide Moat), with revenue predictability as the strongest competitive dimension.
WDC
- ★Free cash flow has grown at a 19.1% CAGR over the past 4 years, demonstrating strong earnings power growth.
- ★Altman Z-Score of 5.53 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 (4.15x debt/equity) combined with thin interest coverage (-1.0x) poses financial risk.
- ⚠Net debt/EBITDA of 4.5x indicates heavy leverage — it would take over 4 years of EBITDA to pay off net debt.
WDC
- ⚠Despite buyback spending, shares outstanding increased in 2 out of 2 years — stock-based compensation is offsetting repurchases.
- ⚠10 insider sales totaling $19.1M with no purchases in the past 3 months — insiders are reducing their exposure.
Key Valuation Metrics
Learn more →ORCL
WDC
Valuation
$-22.30B
Free Cash Flow
$3.90B
-4.99%
FCF Yield
3.60%
27.92
Trailing P/E
29.93
19.51
Forward P/E
23.57
Quality & Moat
8.22%
ROIC
N/A
31.86%
ROE
N/A
67.08%
Gross Margin
42.72%
1.14
PEG Ratio
N/A
Balance Sheet Safety
4.15
Debt / Equity
N/A
N/A
Interest Coverage
No debt
4.48
Net Debt / EBITDA
0.00
1.29%
Dividend Yield
0.16%
ORCL: 4WDC: 3
ORCLWDC
Historical Fundamentals
Learn more →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.
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.
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 →ORCL
$17.69
created per $1 retained over 3 years
Exceptional Value Creator
Σ Retained
$18.61B
Δ Market Cap
+$329.28B
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
WDC
N/A
Net losses over 3 years — test not applicable
Company had negative cumulative retained earnings
Σ Retained
$-665.0M
Δ Market Cap
+$52.27B
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
> $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 →ORCL
235.9% Overvalued
Price is 235.9% above estimated fair value
Current Price: $155.52
Strongly undervalued
Strongly overvalued
Fair Value: $46.30
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
WDC
19.9% Margin of Safety
Price is 19.9% below estimated fair value
Current Price: $316.93
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
Fair Value: $395.74
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
Reverse DCF — Market-Implied Growth
Learn more →ORCL
Requires positive FCF to compute implied growth rate.
WDC
What growth rate is the market pricing in at $317?
+22.3%
Market-Implied Owner Earnings Growth
Standard FCF implies +12.2%
The market implies +22.3% Owner Earnings growth, roughly in line with history — reasonably priced.
Standard FCF implies +12.2%, reflecting ongoing growth investment.
Economic Moat Score
Learn more →ORCL
71/100
Wide Moat
70+ Wide · 40-69 Narrow · <40 None
Wide moat driven primarily by revenue predictability. 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 4 years of fundamental data.
WDC
30/100
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 5 years of fundamental data.
Forensic Accounting
Learn more →ORCL
-2.57
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
-2.33
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 →ORCL
Insiders 40.5%Institutions 44.3%Retail & Other 15.1%
No. of Institutional Holders4,769
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 103.5%
No. of Institutional Holders1,636
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 →ORCL
0
Buys (3M)
1
Buys (12M)
Total value (12M): $112,258
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
Learn more →ORCL
4
Sells (3M)
22
Sells (12M)
Total value (12M): $1.90B
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
CONRADES GEORGE HENRY
Director
$1.74M
@ $213.49 · 2025-06-17
MAGOUYRK CLAYTON M
Officer
$3.21M
@ $214.10 · 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
SMITH MARIA
Officer
$1.04M
@ $165.00 · 2024-09-16
ELLISON LAWRENCE JOSEPH
Chief Technology Officer
$322.05M
@ $143.13 · 2024-07-16
SCREVEN EDWARD LLOYD
Officer
$60.58M
@ $141.91 · 2024-07-10
SCREVEN EDWARD LLOYD
Officer
$5.22M
@ $140.19 · 2024-06-26
SCREVEN EDWARD LLOYD
Officer
$34.04M
@ $144.30 · 2024-06-20
BOSKIN MICHAEL J
Director
$5.30M
@ $117.74 · 2024-05-07
CONRADES GEORGE HENRY
Director
$2.32M
@ $116.00 · 2024-05-03
CONRADES GEORGE HENRY
Director
$2.90M
@ $116.13 · 2024-05-01
CATZ SAFRA A
Chief Executive Officer
$346.77M
@ $126.10 · 2024-03-27
Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives
WDC
10
Sells (3M)
28
Sells (12M)
Total value (12M): $34.30M
GUBBI VIDYADHARA K
Officer
$2.17M
@ $255.32 · 2026-03-06
GUBBI VIDYADHARA K
Officer
$2.74M
@ $270.31 · 2026-03-04
TREGILLIS CYNTHIA LOCK
Officer
$2.50M
@ $268.27 · 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
TAN IRVING
Chief Executive Officer
$654,334
@ $75.90 · 2025-08-19
GUBBI VIDYADHARA K
Officer
$722,359
@ $75.69 · 2025-08-13
ZAMISKA GENE M
Officer
$14,212
@ $58.01 · 2025-06-17
ZAMISKA GENE M
Officer
$94,888
@ $54.88 · 2025-06-05
TAN IRVING
Chief Executive Officer
$548,354
@ $48.19 · 2025-05-13
ZAMISKA GENE M
Officer
$19,777
@ $43.37 · 2025-03-12
ZAMISKA GENE M
Officer
$68,616
@ $41.36 · 2025-03-07
ZAMISKA GENE M
Officer
$22,733
@ $72.63 · 2024-11-29
ZAMISKA GENE M
Officer
$46,053
@ $69.99 · 2024-11-26
ZAMISKA GENE M
Officer
$24,241
@ $64.47 · 2024-11-21
SODERBERY ROBERT
Officer
$2.09M
@ $68.01 · 2024-10-29
ZAMISKA GENE M
Officer
$139,390
@ $69.94 · 2024-10-28
GOECKELER DAVID V
Chief Executive Officer
$5.44M
@ $72.58 · 2024-10-25
GOECKELER DAVID V
Chief Executive Officer
$5.27M
@ $70.32 · 2024-09-26
ZAMISKA GENE M
Officer
$134,391
@ $61.96 · 2024-09-04
ZAMISKA GENE M
Officer
$19,946
@ $63.32 · 2024-08-29
ZAMISKA GENE M
Officer
$178,287
@ $61.48 · 2024-08-27
ZAMISKA GENE M
Officer
$27,059
@ $64.89 · 2024-08-21
SODERBERY ROBERT
Officer
$693,860
@ $57.09 · 2024-08-05
ZAMISKA GENE M
Officer
$17,082
@ $78.00 · 2024-06-17
SODERBERY ROBERT
Officer
$1.97M
@ $73.48 · 2024-06-04
ZAMISKA GENE M
Officer
$29,902
@ $71.88 · 2024-05-21
ZAMISKA GENE M
Officer
$33,225
@ $75.00 · 2024-04-08
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 →ORCL
😨Fear(39/100)
"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
😐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
Learn more →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 (39)
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: Neutral (59)