Compare Stocks › ISRG vs TSLA
Intuitive Surgical, Inc. (ISRG) vs Tesla, Inc. (TSLA)
ISRG
Intuitive Surgical, Inc.
$479.93
VS
TSLA
Tesla, Inc.
$380.30
Rewards
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.
TSLA
- ★Each dollar of retained earnings has created $50.04 of market value — management is an exceptional capital allocator.
- ★Altman Z-Score of 19.94 indicates very low bankruptcy risk — the company is firmly in the safe zone.
- ★Net debt/EBITDA of -2.8x means the company holds more cash than debt — a net cash position.
Risks
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.
TSLA
- ⚠ROIC has declined by 17.7 percentage points over the observed period, which may signal competitive erosion.
- ⚠Gross margin of 18.0% is low, suggesting a competitive or commodity-like market with limited pricing power.
- ⚠Share count has increased by 19% over the past 4 years, diluting existing shareholders.
Key Valuation Metrics
Learn more →ISRG
TSLA
Valuation
$2.27B
Free Cash Flow
$6.22B
1.33%
FCF Yield
0.44%
60.98
Trailing P/E
358.77
41.92
Forward P/E
135.32
Quality & Moat
13.24%
ROIC
3.61%
15.93%
ROE
4.58%
66.00%
Gross Margin
18.03%
3.67
PEG Ratio
N/A
Balance Sheet Safety
0.01
Debt / Equity
0.18
N/A
Interest Coverage
N/A
-1.62
Net Debt / EBITDA
-2.79
N/A
Dividend Yield
N/A
ISRG: 7Ties: 1TSLA: 2
ISRGTSLA
Historical Fundamentals
Learn more →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.
TSLA
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 →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
> $1 created per $1 retained = Value Creator · < $1 created = Value Destroyer
TSLA
$50.04
created per $1 retained over 3 years
Exceptional Value Creator
Σ Retained
$25.92B
Δ Market Cap
+$1.30T
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 →ISRG
79.7% Overvalued
Price is 79.7% above estimated fair value
Current Price: $479.93
Strongly undervalued
Fairly valued
Strongly overvalued
Fair Value: $267.02
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
TSLA
367.6% Overvalued
Price is 367.6% above estimated fair value
Current Price: $380.30
Strongly undervalued
Strongly overvalued
Fair Value: $81.33
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
Reverse DCF — Market-Implied Growth
Learn more →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.
TSLA
What growth rate is the market pricing in at $380?
+49.4%
Market-Implied Owner Earnings Growth
Standard FCF implies +41.8%
The market implies +49.4% Owner Earnings growth, above historical trends.
Standard FCF implies a demanding +41.8%, reflecting heavy growth investment.
Economic Moat Score
Learn more →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.
TSLA
31/100
No Moat
70+ Wide · 40-69 Narrow · <40 None
No durable moat detected, though revenue predictability 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 4 years of fundamental data.
Forensic Accounting
Learn more →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.
TSLA
-2.86
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 →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.
TSLA
Insiders 11.1%Institutions 44.6%Retail & Other 44.3%
No. of Institutional Holders5,299
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 →ISRG
0
Buys (3M)
0
Buys (12M)
No open market insider purchases found.
Open market purchases · includes direct & indirect ownership · excludes option exercises
TSLA
0
Buys (3M)
2
Buys (12M)
Total value (12M): $1.00B
MUSK ELON REEVE
Chief Executive Officer
$999.96M
@ $389.28 · 2025-09-12
GEBBIA JOSEPH
Director
$1.03M
@ $256.31 · 2025-04-24
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 →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
TSLA
2
Sells (3M)
17
Sells (12M)
Total value (12M): $319.71M
TANEJA VAIBHAV
Chief Financial Officer
$899,077
@ $397.12 · 2026-03-06
WILSON - THOMPSON KATHLEEN
Director
$10.69M
@ $415.56 · 2026-02-25
MUSK KIMBAL J
Director
$25.61M
@ $450.66 · 2025-12-09
TANEJA VAIBHAV
Chief Financial Officer
$1.17M
@ $443.93 · 2025-12-08
TANEJA VAIBHAV
Chief Financial Officer
$918,137
@ $352.45 · 2025-09-08
TANEJA VAIBHAV
Chief Financial Officer
$1.77M
@ $295.26 · 2025-07-08
ZHU XIAOTONG
Officer
$4.86M
@ $323.81 · 2025-06-12
TANEJA VAIBHAV
Chief Financial Officer
$732,573
@ $285.71 · 2025-06-09
TANEJA VAIBHAV
Chief Financial Officer
$2.40M
@ $342.30 · 2025-06-03
EHRENPREIS IRA MATTHEW
Director
$170.64M
@ $357.30 · 2025-05-27
MUSK KIMBAL J
Director
$32.73M
@ $357.39 · 2025-05-27
TANEJA VAIBHAV
Chief Financial Officer
$1.05M
@ $350.11 · 2025-05-16
TANEJA VAIBHAV
Chief Financial Officer
$1.20M
@ $300.00 · 2025-05-09
DENHOLM ROBYN M
Director
$30.81M
@ $274.12 · 2025-05-06
TANEJA VAIBHAV
Chief Financial Officer
$1.14M
@ $284.40 · 2025-05-01
DENHOLM ROBYN M
Director
$32.10M
@ $285.58 · 2025-04-29
TANEJA VAIBHAV
Chief Financial Officer
$1.00M
@ $250.00 · 2025-04-07
MURDOCH JAMES RUPERT
Director
$13.19M
@ $240.79 · 2025-03-10
TANEJA VAIBHAV
Chief Financial Officer
$718,111
@ $268.75 · 2025-03-06
DENHOLM ROBYN M
Director
$33.67M
@ $299.61 · 2025-03-03
TANEJA VAIBHAV
Chief Financial Officer
$1.78M
@ $296.02 · 2025-03-03
MUSK KIMBAL J
Director
$27.59M
@ $367.87 · 2025-02-06
DENHOLM ROBYN M
Director
$43.16M
@ $384.04 · 2025-02-03
TANEJA VAIBHAV
Chief Financial Officer
$2.68M
@ $383.11 · 2025-02-03
TANEJA VAIBHAV
Chief Financial Officer
$2.89M
@ $413.56 · 2025-01-06
WILSON - THOMPSON KATHLEEN
Director
$41.16M
@ $411.63 · 2025-01-06
TANEJA VAIBHAV
Chief Financial Officer
$975,015
@ $374.29 · 2024-12-06
WILSON - THOMPSON KATHLEEN
Director
$35.25M
@ $352.54 · 2024-12-04
DENHOLM ROBYN M
Director
$39.79M
@ $354.06 · 2024-12-02
TANEJA VAIBHAV
Chief Financial Officer
$2.48M
@ $354.43 · 2024-12-02
DENHOLM ROBYN M
Director
$35.34M
@ $314.44 · 2024-11-15
TANEJA VAIBHAV
Chief Financial Officer
$3.80M
@ $316.91 · 2024-11-11
WILSON - THOMPSON KATHLEEN
Director
$34.60M
@ $346.02 · 2024-11-11
TANEJA VAIBHAV
Chief Financial Officer
$1.01M
@ $251.76 · 2024-11-01
MUSK KIMBAL J
Director
$15.14M
@ $250.23 · 2024-11-01
TANEJA VAIBHAV
Chief Financial Officer
$1.00M
@ $250.00 · 2024-10-24
TANEJA VAIBHAV
Chief Financial Officer
$2.00M
@ $250.00 · 2024-09-23
ZHU XIAOTONG
Officer
$65,867
@ $221.77 · 2024-09-06
DENHOLM ROBYN M
Director
$14.60M
@ $219.96 · 2024-07-25
ZHU XIAOTONG
Officer
$113,151
@ $174.35 · 2024-06-06
DENHOLM ROBYN M
Director
$17.32M
@ $184.86 · 2024-05-06
BAGLINO ANDREW D
Officer
$1.85M
@ $176.20 · 2024-04-01
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 →ISRG
😐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.
TSLA
😐Neutral(47/100)
"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
Learn more →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)
TSLA
⚪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 (47)