Compare StocksBRK-B vs CMI

Berkshire Hathaway Inc. (BRK-B) vs Cummins Inc. (CMI)

BRK-B
Berkshire Hathaway Inc.
$473.01
VS
CMI
Cummins Inc.
$657.44

Rewards

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.
CMI
  • Free cash flow has grown at a 31.6% CAGR over the past 4 years, demonstrating strong earnings power growth.
  • Each dollar of retained earnings has created $1.68 of earning power — management is creating shareholder value.
  • PEG ratio of 0.77 suggests the stock is undervalued relative to its growth rate — paying less than 1x for each unit of earnings growth.

Risks

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.
CMI
  • FCF yield of 2.6% is below 3%, meaning the market is pricing in substantial future growth to justify the current price.
  • Trailing P/E of 32.1x is 29% above the historical average of 24.8x — the stock trades at a premium to its own history.
  • 6 insider sales totaling $19.8M with no purchases in the past 3 months — insiders are reducing their exposure.

Key Valuation Metrics

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BRK-B
CMI
Valuation
$61.23B
Free Cash Flow
$2.39B
6.00%
FCF Yield
2.62%
15.24
Trailing P/E
32.05
21.95
Forward P/E
20.83
Quality & Moat
4.96%
ROIC
13.49%
9.18%
ROE
21.20%
27.78%
Gross Margin
25.76%
0.13
PEG Ratio
0.77
Balance Sheet Safety
0.18
Debt / Equity
0.61
N/A
Interest Coverage
N/A
-2.28
Net Debt / EBITDA
0.87
N/A
Dividend Yield
1.19%
BRK-B: 7Ties: 1CMI: 3
BRK-BCMI

Historical Fundamentals

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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.

CMI

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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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
CMI
$7.92
created per $1 retained over 3 years
Exceptional Value Creator
Σ Retained
$4.58B
Δ Market Cap
+$36.28B
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

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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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
CMI
21.4% Margin of Safety
Price is 21.4% below estimated fair value
Current Price: $657.44
Fair Value: $836.21
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued

Reverse DCF — Market-Implied Growth

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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.

CMI

What growth rate is the market pricing in at $657?

+14.7%
Market-Implied Owner Earnings Growth
Standard FCF implies +17.1%

The market implies +14.7% Owner Earnings growth, above historical trends.

Standard FCF implies a demanding +17.1%, reflecting heavy growth investment.

Economic Moat Score

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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.
CMI
55/100
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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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.
CMI
-2.51
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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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.
CMI
Insiders 0.3%Institutions 87.9%Retail & Other 11.8%
No. of Institutional Holders2,422
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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BRK-B
0
Buys (3M)
0
Buys (12M)
No open market insider purchases found.
Open market purchases · includes direct & indirect ownership · excludes option exercises
CMI
0
Buys (3M)
1
Buys (12M)
Total value (12M): $332,080
STONE JOHN H
Director
$332,080
@ $332.08 · 2025-05-16
WILTROUT JEFFREY T
Officer
$80,401
@ $285.11 · 2024-05-24
BOAKYE MARVIN
Officer
$499,133
@ $286.04 · 2024-05-20
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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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
CMI
6
Sells (3M)
17
Sells (12M)
Total value (12M): $46.04M
DAVIS AMY ROCHELLE
Officer
$2.28M
@ $561.34 · 2026-03-03
JACKSON DONALD G
Officer
$2.32M
@ $465.64 · 2026-02-24
DAVIS AMY ROCHELLE
Officer
$1.09M
@ $586.64 · 2026-02-23
NEWSOME EARL JR.
Chief Technology Officer
$758,776
@ $583.67 · 2026-02-23
MILLER WILLIAM I
Director
$10.81M
@ $597.10 · 2026-02-11
BUSH JENNIFER MARY
Officer
$2.50M
@ $584.93 · 2026-02-10
MERRITT BRETT MICHAEL
Officer
$709,514
@ $489.32 · 2025-11-25
RUMSEY JENNIFER W.
Chief Executive Officer
$2.17M
@ $473.89 · 2025-11-11
SMITH MARK ANDREW
Chief Financial Officer
$6.17M
@ $470.66 · 2025-11-06
SMITH MARK ANDREW
Chief Financial Officer
$89,819
@ $449.10 · 2025-10-30
SMITH MARK ANDREW
Chief Financial Officer
$3.51M
@ $439.30 · 2025-10-06
SMITH MARK ANDREW
Chief Financial Officer
$3.77M
@ $415.73 · 2025-09-17
ENRIGHT ROBERT J
Officer
$748,210
@ $402.26 · 2025-08-22
DAVIS AMY ROCHELLE
Officer
$2.02M
@ $402.88 · 2025-08-14
SMITH MARK ANDREW
Chief Financial Officer
$5.00M
@ $400.20 · 2025-08-13
BUSH JENNIFER MARY
Officer
$201,826
@ $388.13 · 2025-08-08
PETERS LUTHER EARL
Officer
$1.89M
@ $389.19 · 2025-08-08
SMITH MARK ANDREW
Chief Financial Officer
$4.28M
@ $374.57 · 2025-02-10
BARNER SHARON R.
Officer
$798,403
@ $369.12 · 2024-11-21
BARNER SHARON R.
Officer
$784,071
@ $362.49 · 2024-11-13
JACKSON DONALD G
Officer
$1.78M
@ $356.21 · 2024-11-12
DI LEO ALLEN BRUNO VITO
Director
$1.77M
@ $358.56 · 2024-11-12
BARNER SHARON R.
Officer
$775,052
@ $358.32 · 2024-11-11
SATTERTHWAITE LIVINGSTON LORD
Officer
$7.47M
@ $308.24 · 2024-08-23
BARNER SHARON R.
Officer
$1.98M
@ $304.77 · 2024-08-21
BARNER SHARON R.
Officer
$1.44M
@ $300.35 · 2024-08-15
BARNER SHARON R.
Officer
$708,110
@ $296.28 · 2024-05-10
BARNER SHARON R.
Officer
$1.11M
@ $286.86 · 2024-05-07
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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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.
CMI
FearGreed
😏Greed(67/100)

"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.

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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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)
CMI
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 (67)
View BRK-B Full AnalysisView CMI Full Analysis
BRK-B vs CMI: Which Is the Better Buy? | SafetyMargin.io