Compare StocksBRK-B vs RTX

Berkshire Hathaway Inc. (BRK-B) vs RTX Corporation (RTX)

BRK-B
Berkshire Hathaway Inc.
$481.48
VS
RTX
RTX Corporation
$200.73

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.
RTX
  • Free cash flow has grown at a 19.2% CAGR over the past 4 years, demonstrating strong earnings power growth.
  • Each dollar of retained earnings has created $21.02 of market value — management is an exceptional capital allocator.

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.
RTX
  • Gross margin of 20.1% is low, suggesting a competitive or commodity-like market with limited pricing power.
  • FCF yield of 2.4% is below 3%, meaning the market is pricing in substantial future growth to justify the current price.
  • PEG ratio of 4.88 indicates the stock is expensive relative to its expected growth — the market may be pricing in more growth than analysts project.

Key Valuation Metrics

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BRK-B
RTX
Valuation
$36.80B
Free Cash Flow
$6.46B
3.54%
FCF Yield
2.39%
15.50
Trailing P/E
40.47
22.11
Forward P/E
26.73
Quality & Moat
11.31%
ROIC
7.21%
9.30%
ROE
10.03%
26.15%
Gross Margin
20.08%
N/A
PEG Ratio
4.88
Balance Sheet Safety
0.19
Debt / Equity
0.60
N/A
Interest Coverage
N/A
-2.15
Net Debt / EBITDA
2.21
N/A
Dividend Yield
1.36%
BRK-B: 8Ties: 1RTX: 1
BRK-BRTX

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.

RTX

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
RTX
$21.02
created per $1 retained over 3 years
Exceptional Value Creator
Σ Retained
$4.67B
Δ Market Cap
+$98.20B
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
RTX
100.4% Overvalued
Price is 100.4% above estimated fair value
Current Price: $200.73
Fair Value: $100.19
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.

RTX

What growth rate is the market pricing in at $201?

+18.7%
Market-Implied Owner Earnings Growth
Standard FCF implies +19.3%

The market implies +18.7% Owner Earnings growth, above historical trends.

Standard FCF implies a demanding +19.3%, 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.
RTX
51/100
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.
RTX
-2.30
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.
RTX
Insiders 0.1%Institutions 81.0%Retail & Other 18.9%
No. of Institutional Holders3,911
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
RTX
0
Buys (3M)
1
Buys (12M)
Total value (12M): $23,580
WINNEFELD JAMES A. JR.
Director
$23,580
@ $117.90 · 2025-04-23
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
RTX
7
Sells (3M)
17
Sells (12M)
Total value (12M): $46.72M
WILLIAMS DANTAYA M
Officer
$2.58M
@ $202.83 · 2026-02-23
CALIO CHRISTOPHER T
Chief Executive Officer
$12.96M
@ $203.80 · 2026-02-19
MAHARAJH RAMSARAN JR
General Counsel
$3.10M
@ $204.65 · 2026-02-19
MITCHILL NEIL G JR
Chief Financial Officer
$7.35M
@ $205.56 · 2026-02-19
DASILVA KEVIN G
Officer and Treasurer
$1.64M
@ $201.30 · 2026-02-13
EDDY SHANE G
Officer
$3.49M
@ $199.16 · 2026-02-12
JOHNSON AMY L.
Officer
$1.58M
@ $195.03 · 2026-02-10
CALIO CHRISTOPHER T
Chief Executive Officer
$858,278
@ $178.32 · 2025-10-27
ATKINSON TRACY A
Director
$500,948
@ $178.91 · 2025-10-24
MITCHILL NEIL G JR
Chief Financial Officer
$873,528
@ $180.15 · 2025-10-24
EDDY SHANE G
Officer
$4.15M
@ $159.79 · 2025-08-27
BRUNK TROY D
Officer
$1.19M
@ $155.20 · 2025-08-12
JASPER PHILIP J
Officer
$2.03M
@ $157.82 · 2025-08-04
DASILVA KEVIN G
Officer and Treasurer
$1.36M
@ $156.20 · 2025-07-24
MAHARAJH RAMSARAN JR
General Counsel
$222,600
@ $152.26 · 2025-07-23
WILLIAMS DANTAYA M
Officer
$2.33M
@ $137.62 · 2025-06-03
JOHNSON AMY L.
Officer
$528,777
@ $127.54 · 2025-05-06
CALIO CHRISTOPHER T
Chief Executive Officer
$3.57M
@ $130.36 · 2025-02-27
MITCHILL NEIL G JR
Chief Financial Officer
$2.10M
@ $130.35 · 2025-02-27
MAHARAJH RAMSARAN JR
General Counsel
$2.46M
@ $126.82 · 2025-02-25
BRUNK TROY D
Officer
$361,736
@ $125.95 · 2025-02-24
DASILVA KEVIN G
Officer and Treasurer
$1.30M
@ $125.08 · 2025-02-19
EDDY SHANE G
Officer
$1.95M
@ $124.45 · 2025-02-18
WILLIAMS DANTAYA M
Officer
$1.81M
@ $129.23 · 2025-02-05
HAYES GREGORY J
Officer and Director
$15.88M
@ $117.74 · 2024-07-31
MITCHILL NEIL G JR
Chief Financial Officer
$498,908
@ $115.43 · 2024-07-30
JASPER PHILIP J
Officer
$1.39M
@ $113.65 · 2024-07-29
CALIO CHRISTOPHER T
Chief Executive Officer
$482,790
@ $114.00 · 2024-07-29
JOHNSON AMY L.
Officer
$766,864
@ $113.88 · 2024-07-29
DASILVA KEVIN G
Officer and Treasurer
$938,766
@ $114.96 · 2024-07-26
WILLIAMS DANTAYA M
Officer
$2.02M
@ $114.87 · 2024-07-26
MAHARAJH RAMSARAN JR
General Counsel
$260,401
@ $114.71 · 2024-07-26
EDDY SHANE G
Officer
$773,604
@ $114.76 · 2024-07-26
TIMM STEPHEN J
Officer
$2.10M
@ $105.72 · 2024-05-10
ORTBERG ROBERT KELLY
Director
$1.05M
@ $101.98 · 2024-04-30
HAYES GREGORY J
Chief Executive Officer
$9.11M
@ $101.44 · 2024-04-25
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.
RTX
FearGreed
😏Greed(64/100)

"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)
RTX
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 (64)
View BRK-B Full AnalysisView RTX Full Analysis
Berkshire Hathaway Inc. (BRK-B) vs RTX Corporation (RTX) Stock Comparison | SafetyMargin.io