Compare StocksBRK-B vs ISRG

Berkshire Hathaway Inc. (BRK-B) vs Intuitive Surgical, Inc. (ISRG)

BRK-B
Berkshire Hathaway Inc.
$481.48
VS
ISRG
Intuitive Surgical, Inc.
$479.93

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.
ISRG
  • Intuitive Surgical, Inc. has maintained ROIC above 10% for 4 consecutive years, suggesting solid business economics.
  • Gross margin of 66.0% indicates strong pricing power — typical of businesses with significant intellectual property or brand strength.
  • Intuitive Surgical, Inc. scores 89/100 on the Economic Moat Score (Wide Moat), with revenue predictability as the strongest competitive dimension.

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.
ISRG
  • FCF yield of 1.3% is below 3%, meaning the market is pricing in substantial future growth to justify the current price.
  • PEG ratio of 3.67 indicates the stock is expensive relative to its expected growth — the market may be pricing in more growth than analysts project.
  • 8 insider sales totaling $3.0M with no purchases in the past 3 months — insiders are reducing their exposure.

Key Valuation Metrics

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BRK-B
ISRG
Valuation
$36.80B
Free Cash Flow
$2.27B
3.54%
FCF Yield
1.33%
15.50
Trailing P/E
60.98
22.11
Forward P/E
41.92
Quality & Moat
11.31%
ROIC
13.24%
9.30%
ROE
15.93%
26.15%
Gross Margin
66.00%
N/A
PEG Ratio
3.67
Balance Sheet Safety
0.19
Debt / Equity
0.01
N/A
Interest Coverage
N/A
-2.15
Net Debt / EBITDA
-1.62
N/A
Dividend Yield
N/A
BRK-B: 5Ties: 1ISRG: 4
BRK-BISRG

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.

ISRG

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
ISRG
$15.51
created per $1 retained over 3 years
Exceptional Value Creator
Σ Retained
$6.98B
Δ Market Cap
+$108.24B
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
ISRG
79.7% Overvalued
Price is 79.7% above estimated fair value
Current Price: $479.93
Fair Value: $267.02
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.

ISRG

What growth rate is the market pricing in at $480?

+22.2%
Market-Implied Owner Earnings Growth
Standard FCF implies +25.3%

The market implies +22.2% Owner Earnings growth, below historical trends — potential opportunity.

Standard FCF implies a more demanding +25.3%, reflecting heavy growth investment expected to generate future returns.

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.
ISRG
89/100
Wide Moat
70+ Wide · 40-69 Narrow · <40 None

Wide moat with strength across all dimensions. Revenue Predictability is the standout factor.

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.
ISRG
-2.42
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.
ISRG
Insiders 0.6%Institutions 89.1%Retail & Other 10.3%
No. of Institutional Holders3,257
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
ISRG
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
ISRG
8
Sells (3M)
34
Sells (12M)
Total value (12M): $78.64M
CURET MYRIAM J
Officer
$51,865
@ $493.95 · 2026-03-10
BROSIUS MARK PRESTON
Officer
$630,475
@ $487.61 · 2026-03-09
BROSIUS MARK PRESTON
Officer
$1.82M
@ $496.19 · 2026-03-05
WIDMAN FREDRIK
Officer
$181,915
@ $495.68 · 2026-03-03
WADORS PATRICIA L.
Officer
$109,936
@ $499.71 · 2026-02-27
WIDMAN FREDRIK
Officer
$65,830
@ $494.96 · 2026-02-11
CURET MYRIAM J
Officer
$65,523
@ $520.02 · 2026-01-29
CURET MYRIAM J
Officer
$122,500
@ $532.61 · 2026-01-27
BROSIUS MARK PRESTON
Officer
$2.72M
@ $547.47 · 2025-12-15
BROSIUS MARK PRESTON
Officer
$2.63M
@ $547.36 · 2025-12-12
CURET MYRIAM J
Officer
$58,230
@ $559.90 · 2025-12-10
CURET MYRIAM J
Officer
$71,124
@ $568.99 · 2025-12-01
GUTHART GARY S
Officer and Director
$13.02M
@ $570.89 · 2025-12-01
CHARLTON HENRY L
Officer
$7.96M
@ $580.00 · 2025-11-12
BARRATT CRAIG H
Director
$435,000
@ $580.00 · 2025-11-12
MILLER BRIAN EDWARD
Officer
$2.01M
@ $575.00 · 2025-11-10
CURET MYRIAM J
Officer
$58,800
@ $560.00 · 2025-11-10
WIDMAN FREDRIK
Officer
$1.14M
@ $550.00 · 2025-11-05
CURET MYRIAM J
Officer
$4.22M
@ $548.34 · 2025-10-29
ROSA DAVID J
Chief Executive Officer
$13.41M
@ $547.55 · 2025-10-24
BARRATT CRAIG H
Director
$1.20M
@ $548.01 · 2025-10-24
LADD AMY L
Director
$305,588
@ $455.42 · 2025-09-04
GUTHART GARY S
Officer and Director
$13.87M
@ $472.49 · 2025-08-29
CURET MYRIAM J
Officer
$2.22M
@ $492.48 · 2025-07-25
BROSIUS MARK PRESTON
Officer
$242,182
@ $561.91 · 2025-06-06
BROSIUS MARK PRESTON
Officer
$355,139
@ $550.60 · 2025-06-04
BROSIUS MARK PRESTON
Officer
$23,596
@ $561.81 · 2025-05-16
BROSIUS MARK PRESTON
Officer
$36,886
@ $558.88 · 2025-05-14
SAMATH JAMIE E.
Chief Financial Officer
$483,074
@ $527.95 · 2025-05-02
NACHTSHEIM JAMI DOVER K
Director
$1.25M
@ $520.00 · 2025-05-01
LADD AMY L
Director
$4.44M
@ $505.55 · 2025-04-30
DESANTIS ROBERT
Officer
$508,509
@ $513.65 · 2025-04-29
LOEB GARY
Officer
$872,406
@ $513.18 · 2025-04-25
CURET MYRIAM J
Officer
$2.05M
@ $513.18 · 2025-04-25
DESANTIS ROBERT
Officer
$5.76M
@ $499.22 · 2025-03-13
MILLER BRIAN EDWARD
Officer
$6.37M
@ $493.44 · 2025-03-12
BROSIUS MARK PRESTON
Officer
$260,725
@ $533.18 · 2025-03-07
BROSIUS MARK PRESTON
Officer
$824,991
@ $558.94 · 2025-03-06
ROSA DAVID J
President
$9.20M
@ $557.52 · 2025-03-05
WIDMAN FREDRIK
Officer
$464,762
@ $573.78 · 2025-03-03
BROSIUS MARK PRESTON
Officer
$282,300
@ $573.78 · 2025-03-03
CURET MYRIAM J
Officer
$1.75M
@ $577.30 · 2025-03-03
SAMATH JAMIE E.
Chief Financial Officer
$106,585
@ $566.94 · 2025-02-28
CURET MYRIAM J
Officer
$1.39M
@ $581.00 · 2025-02-27
SAMATH JAMIE E.
Chief Financial Officer
$61,652
@ $570.85 · 2025-02-26
LOEB GARY
Officer
$1.52M
@ $583.79 · 2025-02-12
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.
ISRG
FearGreed
😐Neutral(44/100)

"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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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)
ISRG
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 (44)
View BRK-B Full AnalysisView ISRG Full Analysis