Compare StocksANET vs BRK-B

Arista Networks, Inc. (ANET) vs Berkshire Hathaway Inc. (BRK-B)

ANET
Arista Networks, Inc.
$172.70
VS
BRK-B
Berkshire Hathaway Inc.
$473.01

Rewards

ANET
  • Arista Networks, Inc. has maintained ROIC above 15% for 4 consecutive years, indicating a durable competitive advantage.
  • Gross margin of 64.1% indicates strong pricing power — typical of businesses with significant intellectual property or brand strength.
  • Arista Networks, Inc. scores 93/100 on the Economic Moat Score (Wide Moat), with reinvestment efficiency as the strongest competitive dimension.
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.

Risks

ANET
  • FCF yield of 1.6% is below 3%, meaning the market is pricing in substantial future growth to justify the current price.
  • Trailing P/E of 62.8x is 59% above the historical average of 39.5x — the stock trades at a premium to its own history.
  • PEG ratio of 3.29 indicates the stock is expensive relative to its expected growth — the market may be pricing in more growth than analysts project.
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.

Key Valuation Metrics

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ANET
BRK-B
Valuation
$3.39B
Free Cash Flow
$61.23B
1.56%
FCF Yield
6.00%
62.80
Trailing P/E
15.24
40.06
Forward P/E
21.95
Quality & Moat
23.72%
ROIC
4.96%
28.40%
ROE
9.18%
64.06%
Gross Margin
27.78%
3.29
PEG Ratio
0.13
Balance Sheet Safety
0.01
Debt / Equity
0.18
N/A
Interest Coverage
N/A
-2.71
Net Debt / EBITDA
-2.28
N/A
Dividend Yield
N/A
ANET: 5Ties: 1BRK-B: 5
ANETBRK-B

Historical Fundamentals

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ANET

Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation.

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.

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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ANET
$15.08
created per $1 retained over 3 years
Exceptional Value Creator
Σ Retained
$8.45B
Δ Market Cap
+$127.40B
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
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

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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ANET
21.6% Overvalued
Price is 21.6% above estimated fair value
Current Price: $172.70
Fair Value: $142.08
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
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

Reverse DCF — Market-Implied Growth

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ANET

What growth rate is the market pricing in at $173?

+22.5%
Market-Implied Owner Earnings Growth
Standard FCF implies +22.9%

The market implies +22.5% Owner Earnings growth, below historical trends — potential opportunity.

Standard FCF implies a more demanding +22.9%, reflecting heavy growth investment expected to generate future returns.

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.

Economic Moat Score

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ANET
93/100
Wide Moat
70+ Wide · 40-69 Narrow · <40 None

Wide moat with strength across all dimensions. Reinvestment Efficiency 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.
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.

Forensic Accounting

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ANET
-2.10
Possible 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.
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.

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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ANET
Insiders 17.3%Institutions 70.9%Retail & Other 11.9%
No. of Institutional Holders2,777
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.
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.

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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ANET
0
Buys (3M)
0
Buys (12M)
No open market insider purchases found.
Open market purchases · includes direct & indirect ownership · excludes option exercises
BRK-B
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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ANET
6
Sells (3M)
11
Sells (12M)
Total value (12M): $25.36M
WASSENAAR YVONNE
Director
$213,533
@ $153.07 · 2026-04-15
BREITHAUPT CHANTELLE YVETTE
Chief Financial Officer
$1.38M
@ $155.02 · 2026-04-14
ULLAL JAYSHREE
Chief Executive Officer
$16.93M
@ $150.11 · 2026-04-13
WASSENAAR YVONNE
Director
$187,404
@ $134.34 · 2026-03-16
WASSENAAR YVONNE
Director
$240,380
@ $132.44 · 2026-02-25
BATTLES KELLY BODNAR
Director
$54,042
@ $128.06 · 2026-02-23
ULLAL JAYSHREE
Chief Executive Officer
$2.99M
@ $124.55 · 2025-11-25
BATTLES KELLY BODNAR
Director
$49,436
@ $117.15 · 2025-11-21
ULLAL JAYSHREE
Chief Executive Officer
$3.19M
@ $132.77 · 2025-08-25
BATTLES KELLY BODNAR
Director
$99,081
@ $114.68 · 2025-07-25
WASSENAAR YVONNE
Director
$15,826
@ $94.20 · 2025-05-21
BATTLES KELLY BODNAR
Director
$102,180
@ $68.49 · 2025-04-22
TAXAY MARC
General Counsel
$4.59M
@ $88.59 · 2025-03-03
ULLAL JAYSHREE
Chief Executive Officer
$12.99M
@ $93.88 · 2025-02-24
WASSENAAR YVONNE
Director
$17,233
@ $102.58 · 2025-02-21
MCCOOL JOHN F.
Officer
$11,436
@ $102.11 · 2025-02-19
BATTLES KELLY BODNAR
Director
$159,409
@ $107.13 · 2025-02-14
WASSENAAR YVONNE
Director
$20,331
@ $121.02 · 2025-01-21
TAXAY MARC
General Counsel
$4.36M
@ $1640.40 · 2024-12-02
Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives
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

Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives.

🎭 Mr. Market's Mood

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ANET
FearGreed
😏Greed(66/100)

"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.
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.

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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ANET
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 (66)
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)
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