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Compare Stocks › BRK-B vs PWR

Berkshire Hathaway Inc. (BRK-B) vs Quanta Services, Inc. (PWR)

BRK-B
Berkshire Hathaway Inc.
$481.48
VS
PWR
Quanta Services, Inc.
$577.95

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.
PWR
  • ★Free cash flow has grown at a 32.1% CAGR over the past 4 years, demonstrating strong earnings power growth.
  • ★Each dollar of retained earnings has created $17.00 of market value — management is an exceptional capital allocator.
  • ★Altman Z-Score of 4.17 indicates very low bankruptcy risk — the company is firmly in the safe zone.

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.
PWR
  • ⚠Gross margin of 15.0% is low, suggesting a competitive or commodity-like market with limited pricing power.
  • ⚠Despite buyback spending, shares outstanding increased in 2 out of 3 years — stock-based compensation is offsetting repurchases.
  • ⚠FCF yield of 1.9% is below 3%, meaning the market is pricing in substantial future growth to justify the current price.

Key Valuation Metrics

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BRK-B
PWR
Valuation
$36.80B
Free Cash Flow
$1.62B
3.54%
FCF Yield
1.87%
15.50
Trailing P/E
84.74
22.11
Forward P/E
37.52
Quality & Moat
11.31%
ROIC
7.61%
9.30%
ROE
11.39%
26.15%
Gross Margin
15.01%
N/A
PEG Ratio
32.59
Balance Sheet Safety
0.19
Debt / Equity
0.71
N/A
Interest Coverage
N/A
-2.15
Net Debt / EBITDA
2.39
N/A
Dividend Yield
0.08%
BRK-B: 8Ties: 1PWR: 1
BRK-BPWR

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.

PWR

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
PWR
$17.00
created per $1 retained over 3 years
Exceptional Value Creator
Σ Retained
$2.52B
Δ Market Cap
+$42.76B
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
PWR
163.3% Overvalued
Price is 163.3% above estimated fair value
Current Price: $577.95
Fair Value: $219.49
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.

PWR

What growth rate is the market pricing in at $578?

+28.4%
Market-Implied Owner Earnings Growth
Standard FCF implies +22.0%

The market implies +28.4% Owner Earnings growth, roughly in line with history — reasonably priced.

Standard FCF implies +22.0%, reflecting ongoing 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.
PWR
67/100
Narrow Moat
70+ Wide · 40-69 Narrow · <40 None

Narrow moat with revenue predictability as the key competitive advantage. Improving roic consistency 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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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.
PWR
-2.43
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.
PWR
Insiders 0.9%Institutions 95.9%Retail & Other 3.2%
No. of Institutional Holders2,170
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
PWR
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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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
PWR
0
Sells (3M)
3
Sells (12M)
Total value (12M): $12.49M
DUCEY GERALD A JR
Officer
$3.41M
@ $446.08 · 2025-11-06
WAYNE DONALD CHARLES
General Counsel
$6.21M
@ $443.81 · 2025-11-06
JACKMAN WORTHING F
Director
$2.86M
@ $450.45 · 2025-11-05
STUDER KARL W
Officer
$6.32M
@ $270.51 · 2024-08-21
AUSTIN EARL CHARLES JR
Chief Executive Officer
$34.09M
@ $262.21 · 2024-08-14
PROBST JAMES REDGIE
Chief Operating Officer
$8.84M
@ $260.03 · 2024-08-09
DUCEY GERALD A JR
Officer
$3.87M
@ $257.93 · 2024-08-09
WAYNE DONALD CHARLES
General Counsel
$288,396
@ $261.94 · 2024-03-27
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.
PWR
FearGreed
😏Greed(65/100)

"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)
PWR
⚪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 (65)
View BRK-B Full AnalysisView PWR Full Analysis