Compare StocksBLK vs BRK-B

BlackRock, Inc. (BLK) vs Berkshire Hathaway Inc. (BRK-B)

BLK
BlackRock, Inc.
$1061.68
VS
BRK-B
Berkshire Hathaway Inc.
$473.01

Rewards

BLK
  • BlackRock, Inc. scores 73/100 on the Economic Moat Score (Wide Moat), with reinvestment efficiency as the strongest competitive dimension.
  • PEG ratio of 0.58 suggests the stock is undervalued relative to its growth rate — paying less than 1x for each unit of earnings growth.
BRK-B
  • Each dollar of retained earnings has created $3.95 of earning power — management is an exceptional capital allocator.
  • PEG ratio of 0.13 suggests the stock is undervalued relative to its growth rate — paying less than 1x for each unit of earnings growth.
  • Net debt/EBITDA of -2.3x means the company holds more cash than debt — a net cash position.

Risks

BLK
  • Altman Z-Score of 1.71 places the company in the distress zone — financial patterns resemble those of companies that experienced bankruptcy.
  • 5 insider sales totaling $112.1M with no purchases in the past 3 months — insiders are reducing their exposure.
  • Free cash flow has declined at a 7.0% CAGR over the past 4 years — a concerning trend.
BRK-B
  • FCF yield of 6.0% suggests reasonable valuation assuming continued moderate growth.
  • Trailing P/E of 15.2x is 72% above the historical average of 8.9x — the stock trades at a premium to its own history.

Key Valuation Metrics

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BLK
BRK-B
Valuation
N/A
Free Cash Flow
$61.23B
N/A
FCF Yield
6.00%
26.74
Trailing P/E
15.24
17.50
Forward P/E
21.95
Quality & Moat
9.43%
ROIC
4.96%
9.02%
ROE
9.18%
46.89%
Gross Margin
27.78%
0.58
PEG Ratio
0.13
Balance Sheet Safety
0.24
Debt / Equity
0.18
N/A
Interest Coverage
N/A
0.07
Net Debt / EBITDA
-2.28
2.16%
Dividend Yield
N/A
BLK: 3Ties: 2BRK-B: 4
BLKBRK-B

Historical Fundamentals

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BLK

Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation.

BRK-B

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

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BLK
$7.54
created per $1 retained over 3 years
Exceptional Value Creator
Σ Retained
$7.94B
Δ Market Cap
+$59.85B
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
BRK-B
$1.66
created per $1 retained over 3 years
Value Creator
Σ Retained
$252.19B
Δ Market Cap
+$417.89B
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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BLK
4.8% Margin of Safety
Price is 4.8% below estimated fair value
Current Price: $1061.68
Fair Value: $1115.49
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
BRK-B
31.0% Margin of Safety
Price is 31.0% below estimated fair value
Current Price: $473.01
Fair Value: $685.41
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued

Reverse DCF — Market-Implied Growth

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BLK

Requires positive FCF to compute implied growth rate.

BRK-B

What growth rate is the market pricing in at $473?

-0.3%
Market-Implied Owner Earnings Growth
Standard FCF implies +1.0%

The market implies -0.3% Owner Earnings growth, above historical trends.

Standard FCF implies a demanding +1.0%, reflecting heavy growth investment.

Economic Moat Score

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

Wide moat driven primarily by reinvestment efficiency. ROIC Consistency 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.
BRK-B
40/100
Narrow Moat
70+ Wide · 40-69 Narrow · <40 None

Narrow moat with reinvestment efficiency as the key competitive advantage. Improving revenue predictability 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.

Forensic Accounting

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BLK
-2.22
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.
BRK-B
-2.41
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

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BLK
Insiders 1.9%Institutions 80.6%Retail & Other 17.5%
No. of Institutional Holders3,028
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.
BRK-B
Insiders 0.3%Institutions 66.2%Retail & Other 33.6%
No. of Institutional Holders5,818
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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BLK
0
Buys (3M)
0
Buys (12M)
No open market insider purchases found.
Open market purchases · includes direct & indirect ownership · excludes option exercises
BRK-B
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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BLK
5
Sells (3M)
13
Sells (12M)
Total value (12M): $256.25M
FINK LAURENCE D
Chief Executive Officer
$35.61M
@ $1050.55 · 2026-04-28
KAPITO ROBERT S
President
$9.23M
@ $1056.60 · 2026-04-27
COHEN STEPHEN
Officer
$240,651
@ $1069.56 · 2026-02-23
COHEN STEPHEN
Officer
$2.34M
@ $1073.87 · 2026-02-11
GOLDSTEIN ROBERT L
Chief Operating Officer
$64.66M
@ $1087.02 · 2026-02-11
KUSHEL J RICHARD
Officer
$22.50M
@ $1125.00 · 2026-01-21
SMALL MARTIN
Chief Financial Officer
$31.68M
@ $1171.14 · 2026-01-16
SMALL MARTIN
Chief Financial Officer
$1.31M
@ $1043.38 · 2025-12-01
LORD RACHEL
Officer
$13.98M
@ $1165.04 · 2025-10-20
KUSHEL J RICHARD
Officer
$19.21M
@ $1120.50 · 2025-07-30
LORD RACHEL
Officer
$20.30M
@ $1125.60 · 2025-07-25
FINK LAURENCE D
Chief Executive Officer
$30.21M
@ $1123.69 · 2025-07-25
FREDA FABRIZIO
Director
$4.98M
@ $1122.81 · 2025-07-24
FINK LAURENCE D
Chief Executive Officer
$15.12M
@ $917.18 · 2025-04-29
KUSHEL J RICHARD
Officer
$9.13M
@ $912.50 · 2025-04-24
KUSHEL J RICHARD
Officer
$1.70M
@ $852.01 · 2025-04-21
KUSHEL J RICHARD
Officer
$10.73M
@ $1072.64 · 2025-01-30
KUSHEL J RICHARD
Officer
$10.10M
@ $1010.00 · 2025-01-21
Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives
BRK-B
0
Sells (3M)
0
Sells (12M)
No open market insider sales found.
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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BLK
FearGreed
😐Neutral(58/100)

"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.
BRK-B
FearGreed
😐Neutral(52/100)

"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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BLK
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 (58)
BRK-B
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 (52)
View BLK Full AnalysisView BRK-B Full Analysis