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Compare Stocks › BRK-B vs MPC

Berkshire Hathaway Inc. (BRK-B) vs Marathon Petroleum Corporation (MPC)

BRK-B
Berkshire Hathaway Inc.
$481.48
VS
MPC
Marathon Petroleum Corporation
$235.78

Rewards

BRK-B
  • ★Each dollar of retained earnings has created $1.66 of market value — management is creating shareholder value.
  • ★Net debt/EBITDA of -2.2x means the company holds more cash than debt — a net cash position.
MPC
  • ★Share count has been reduced by 35% over the past 4 years through buybacks, increasing each share's claim on earnings.
  • ★PEG ratio of 0.05 suggests the stock is undervalued relative to its growth rate — paying less than 1x for each unit of earnings growth.

Risks

BRK-B
  • ⚠Berkshire Hathaway Inc. scores only 16/100 on the Economic Moat Score, suggesting limited durable competitive advantages.
  • ⚠Trailing P/E of 15.5x is 75% above the historical average of 8.9x — the stock trades at a premium to its own history.
MPC
  • ⚠ROIC has declined by 18.1 percentage points over the observed period, which may signal competitive erosion.
  • ⚠Gross margin of 10.3% is low, suggesting a competitive or commodity-like market with limited pricing power.
  • ⚠Buybacks have been poorly timed — 3 out of 4 years involved repurchases at relatively expensive valuations.

Key Valuation Metrics

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BRK-B
MPC
Valuation
$36.80B
Free Cash Flow
$4.77B
3.54%
FCF Yield
6.73%
15.50
Trailing P/E
17.82
22.11
Forward P/E
15.74
Quality & Moat
11.31%
ROIC
11.32%
9.30%
ROE
16.80%
26.15%
Gross Margin
10.31%
N/A
PEG Ratio
0.05
Balance Sheet Safety
0.19
Debt / Equity
1.43
N/A
Interest Coverage
N/A
-2.15
Net Debt / EBITDA
3.24
N/A
Dividend Yield
1.62%
BRK-B: 5Ties: 2MPC: 3
BRK-BMPC

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.

MPC

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
+$417.98B
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
MPC
$-0.36
created per $1 retained over 3 years
Market Cap Declined
Σ Retained
$13.62B
Δ Market Cap
$-4.93B
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
31.1% Margin of Safety
Price is 31.1% below estimated fair value
Current Price: $481.48
Fair Value: $699.14
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
MPC
126.7% Overvalued
Price is 126.7% above estimated fair value
Current Price: $235.78
Fair Value: $104.02
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 $481?

+0.7%
Market-Implied Owner Earnings Growth
Standard FCF implies +8.8%

The market implies +0.7% Owner Earnings growth, above historical trends.

Standard FCF implies a demanding +8.8%, reflecting heavy growth investment.

MPC

What growth rate is the market pricing in at $236?

+10.8%
Market-Implied Owner Earnings Growth
Standard FCF implies +8.6%

The market implies +10.8% Owner Earnings growth, above historical trends.

Standard FCF implies a demanding +8.6%, reflecting heavy growth investment.

Economic Moat Score

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BRK-B
16/100
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.
MPC
35/100
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

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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.
MPC
-2.87
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 33.5%
No. of Institutional Holders5,852
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.
MPC
Insiders 0.3%Institutions 77.2%Retail & Other 22.5%
No. of Institutional Holders2,105
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
MPC
0
Buys (3M)
0
Buys (12M)
HESSLING RICKY D.
Officer
$269,440
@ $134.72 · 2025-03-11
BAYH B EVAN III
Director
$133,700
@ $133.70 · 2025-03-05
CAMPBELL JEFFREY C
Director
$897,644
@ $149.61 · 2024-12-04
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
MPC
3
Sells (3M)
5
Sells (12M)
Total value (12M): $5.15M
HESSLING RICKY D.
Officer
$371,021
@ $228.18 · 2026-03-13
HESSLING RICKY D.
Officer
$644,401
@ $226.34 · 2026-03-12
HENSCHEN MICHAEL A II
Officer
$1.07M
@ $202.32 · 2026-02-12
BENSON MOLLY R.
Officer
$1.77M
@ $163.00 · 2025-08-15
RUCKER KIM K. W.
Director
$1.29M
@ $175.00 · 2025-07-03
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

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BRK-B
FearGreed
😐Neutral(48/100)

"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.
MPC
FearGreed
😏Greed(70/100)

"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 (48)
MPC
⚪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 (70)
View BRK-B Full AnalysisView MPC Full Analysis