Compare Stocks › BRK-B vs MU
Berkshire Hathaway Inc. (BRK-B) vs Micron Technology, Inc. (MU)
BRK-B
Berkshire Hathaway Inc.
$473.01
VS
MU
Micron Technology, Inc.
$542.21
Rewards
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.
MU
- ★Trailing P/E of 25.6x is 53% below the historical average of 54.6x — potentially undervalued relative to its own history.
- ★PEG ratio of 0.03 suggests the stock is undervalued relative to its growth rate — paying less than 1x for each unit of earnings growth.
- ★Altman Z-Score of 8.63 indicates very low bankruptcy risk — the company is firmly in the safe zone.
Risks
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.
MU
- ⚠Micron Technology, Inc. scores only 20/100 on the Economic Moat Score, suggesting limited durable competitive advantages.
- ⚠Despite buyback spending, shares outstanding increased in 2 out of 3 years — stock-based compensation is offsetting repurchases.
- ⚠FCF yield of 0.5% is below 3%, meaning the market is pricing in substantial future growth to justify the current price.
Key Valuation Metrics
Learn more →BRK-B
MU
Valuation
$61.23B
Free Cash Flow
$2.89B
6.00%
FCF Yield
0.47%
15.24
Trailing P/E
25.58
21.95
Forward P/E
5.34
Quality & Moat
4.96%
ROIC
37.29%
9.18%
ROE
11.78%
27.78%
Gross Margin
58.44%
0.13
PEG Ratio
0.03
Balance Sheet Safety
0.18
Debt / Equity
0.15
N/A
Interest Coverage
N/A
-2.28
Net Debt / EBITDA
-0.10
N/A
Dividend Yield
0.11%
BRK-B: 4Ties: 1MU: 6
BRK-BMU
Historical Fundamentals
Learn more →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.
MU
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
Learn more →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
> $1 created per $1 retained = Value Creator · < $1 created = Value Destroyer
MU
$136.53
created per $1 retained over 3 years
Exceptional Value Creator
Σ Retained
$1.95B
Δ Market Cap
+$265.55B
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
> $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
Learn more →BRK-B
31.0% Margin of Safety
Price is 31.0% below estimated fair value
Current Price: $473.01
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
Fair Value: $685.41
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
MU
2.1% Margin of Safety
Price is 2.1% below estimated fair value
Current Price: $542.21
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
Fair Value: $553.86
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
Reverse DCF — Market-Implied Growth
Learn more →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.
MU
What growth rate is the market pricing in at $542?
+25.1%
Market-Implied Owner Earnings Growth
Standard FCF implies +40.8%
The market implies +25.1% Owner Earnings growth, above historical trends.
Standard FCF implies a demanding +40.8%, reflecting heavy growth investment.
Economic Moat Score
Learn more →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.
MU
20/100
No Moat
70+ Wide · 40-69 Narrow · <40 None
No durable competitive advantage detected. The business shows limited evidence of pricing power, consistent returns, or capital efficiency.
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
Learn more →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.
MU
-2.72
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
Learn more →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.
MU
Insiders 0.3%Institutions 83.1%Retail & Other 16.6%
No. of Institutional Holders3,669
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
Learn more →BRK-B
0
Buys (3M)
0
Buys (12M)
No open market insider purchases found.
Open market purchases · includes direct & indirect ownership · excludes option exercises
MU
0
Buys (3M)
1
Buys (12M)
Total value (12M): $7.82M
LIU TEYIN MARK
Director
$7.82M
@ $337.14 · 2026-01-14
Open market purchases · includes direct & indirect ownership · excludes option exercises
Open market purchases · includes direct & indirect ownership · excludes option exercises.
Insider Selling Activity
Learn more →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
MU
4
Sells (3M)
37
Sells (12M)
Total value (12M): $181.13M
CORDANO MICHAEL D
Officer
$1.48M
@ $435.00 · 2026-04-14
SADANA SUMIT
Officer
$10.11M
@ $421.35 · 2026-04-10
CORDANO MICHAEL D
Officer
$1.43M
@ $420.81 · 2026-04-09
ARNZEN APRIL S
Officer
$13.90M
@ $347.39 · 2026-04-01
SADANA SUMIT
Officer
$10.75M
@ $429.89 · 2026-02-02
RAY MICHAEL CHARLES
Officer
$5.03M
@ $409.68 · 2026-01-27
BHATIA MANISH H
Officer
$10.41M
@ $391.04 · 2026-01-22
ALLEN SCOTT R
Officer
$675,000
@ $337.50 · 2026-01-06
ARNZEN APRIL S
Officer
$4.16M
@ $277.09 · 2025-12-22
GOMO STEVEN J
Director
$1.32M
@ $263.63 · 2025-12-19
MEHROTRA SANJAY
Chief Executive Officer
$2.99M
@ $238.96 · 2025-11-07
MURPHY MARK J
Chief Financial Officer
$28.39M
@ $225.31 · 2025-10-30
MEHROTRA SANJAY
Chief Executive Officer
$5.13M
@ $228.03 · 2025-10-30
DEBOER SCOTT J.
Chief Technology Officer
$18.27M
@ $222.81 · 2025-10-27
MEHROTRA SANJAY
Chief Executive Officer
$4.97M
@ $220.72 · 2025-10-27
MEHROTRA SANJAY
Chief Executive Officer
$4.59M
@ $204.10 · 2025-10-21
ALLEN SCOTT R
Officer
$1.85M
@ $210.02 · 2025-10-20
RAY MICHAEL CHARLES
Officer
$742,384
@ $201.63 · 2025-10-16
MEHROTRA SANJAY
Chief Executive Officer
$7.14M
@ $190.47 · 2025-10-07
MEHROTRA SANJAY
Chief Executive Officer
$2.71M
@ $180.86 · 2025-10-01
ARNZEN APRIL S
Officer
$2.46M
@ $164.04 · 2025-09-30
BEYER RICHARD M
Director
$864,335
@ $155.68 · 2025-09-25
MEHROTRA SANJAY
Chief Executive Officer
$2.44M
@ $162.84 · 2025-09-19
MEHROTRA SANJAY
Chief Executive Officer
$1.19M
@ $158.34 · 2025-09-16
MEHROTRA SANJAY
Chief Executive Officer
$2.20M
@ $146.43 · 2025-09-11
MEHROTRA SANJAY
Chief Executive Officer
$981,212
@ $130.83 · 2025-09-05
MCCARTHY MARY PAT
Director
$278,071
@ $115.67 · 2025-09-02
MURPHY MARK J
Chief Financial Officer
$3.72M
@ $109.32 · 2025-07-22
MCCARTHY MARY PAT
Director
$291,562
@ $121.28 · 2025-07-01
BHATIA MANISH H
Officer
$9.85M
@ $123.16 · 2025-06-30
SADANA SUMIT
Officer
$11.63M
@ $125.49 · 2025-06-27
GOMO STEVEN J
Director
$876,050
@ $125.15 · 2025-06-27
DEBOER SCOTT J.
Chief Technology Officer
$2.50M
@ $125.11 · 2025-06-24
ARNZEN APRIL S
Officer
$1.88M
@ $125.12 · 2025-06-24
MEHROTRA SANJAY
Chief Executive Officer
$907,730
@ $121.03 · 2025-06-17
MEHROTRA SANJAY
Chief Executive Officer
$830,089
@ $110.68 · 2025-06-09
DEBOER SCOTT J.
Chief Technology Officer
$2.20M
@ $110.00 · 2025-06-06
MCCARTHY MARY PAT
Director
$192,320
@ $80.00 · 2025-05-02
ARNZEN APRIL S
Officer
$1.44M
@ $96.18 · 2025-03-25
RAY MICHAEL CHARLES
Officer
$652,500
@ $100.00 · 2025-03-14
MCCARTHY MARY PAT
Director
$223,393
@ $92.93 · 2025-03-03
MEHROTRA SANJAY
Chief Executive Officer
$784,986
@ $104.66 · 2025-02-18
DEBOER SCOTT J.
Chief Technology Officer
$2.30M
@ $100.00 · 2025-02-14
RAY MICHAEL CHARLES
Officer
$652,500
@ $100.00 · 2025-02-14
ALLEN SCOTT R
Officer
$508,800
@ $101.76 · 2025-01-07
ARNZEN APRIL S
Officer
$416,677
@ $85.21 · 2024-12-20
BOKAN MICHAEL W
Officer
$1.09M
@ $109.03 · 2024-10-21
ARNZEN APRIL S
Officer
$552,570
@ $113.00 · 2024-09-26
ARNZEN APRIL S
Officer
$664,355
@ $135.86 · 2024-06-27
MEHROTRA SANJAY
Chief Executive Officer
$5.22M
@ $152.28 · 2024-06-18
MEHROTRA SANJAY
Chief Executive Officer
$5.14M
@ $138.97 · 2024-06-12
MEHROTRA SANJAY
Chief Executive Officer
$882,951
@ $126.14 · 2024-06-04
MEHROTRA SANJAY
Chief Executive Officer
$924,976
@ $132.14 · 2024-05-29
MEHROTRA SANJAY
Chief Executive Officer
$893,618
@ $127.66 · 2024-05-21
MEHROTRA SANJAY
Chief Executive Officer
$860,209
@ $122.89 · 2024-05-14
BOKAN MICHAEL W
Officer
$1.85M
@ $123.42 · 2024-05-14
SADANA SUMIT
Officer
$7.24M
@ $120.66 · 2024-05-13
BHATIA MANISH H
Officer
$4.91M
@ $120.89 · 2024-05-10
MEHROTRA SANJAY
Chief Executive Officer
$842,208
@ $120.32 · 2024-05-07
BHATIA MANISH H
Officer
$6.35M
@ $119.18 · 2024-05-06
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
Learn more →BRK-B
😐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.
MU
😏Greed(69/100)
"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
Learn more →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)
MU
⚪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 (69)