Compare Stocks › FSLR vs TSLA
First Solar, Inc. (FSLR) vs Tesla, Inc. (TSLA)
FSLR
First Solar, Inc.
$199.65
VS
TSLA
Tesla, Inc.
$380.30
Rewards
FSLR
- ★Each dollar of retained earnings has created $3.30 of market value — management is an exceptional capital allocator.
- ★Trailing P/E of 14.0x is 24% below the historical average of 18.4x — potentially undervalued relative to its own history.
- ★PEG ratio of 0.43 suggests the stock is undervalued relative to its growth rate — paying less than 1x for each unit of earnings growth.
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
FSLR
- ⚠38 insider sales totaling $14.9M 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 →FSLR
TSLA
Valuation
$963.92M
Free Cash Flow
$6.22B
4.50%
FCF Yield
0.44%
14.04
Trailing P/E
358.77
7.84
Forward P/E
135.32
Quality & Moat
13.17%
ROIC
3.61%
16.02%
ROE
4.58%
40.62%
Gross Margin
18.03%
0.43
PEG Ratio
N/A
Balance Sheet Safety
0.07
Debt / Equity
0.18
N/A
Interest Coverage
N/A
-1.03
Net Debt / EBITDA
-2.79
N/A
Dividend Yield
N/A
FSLR: 7Ties: 1TSLA: 2
FSLRTSLA
Historical Fundamentals
Learn more →FSLR
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 →FSLR
$3.30
created per $1 retained over 3 years
Exceptional Value Creator
Σ Retained
$3.65B
Δ Market Cap
+$12.06B
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 →FSLR
81.1% Margin of Safety
Price is 81.1% below estimated fair value
Current Price: $199.65
Strongly undervalued
Fairly valued
Strongly overvalued
Fair Value: $1055.89
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 →FSLR
What growth rate is the market pricing in at $200?
+1.4%
Market-Implied Owner Earnings Growth
Standard FCF implies +7.7%
The market implies +1.4% Owner Earnings growth, below historical trends — potential opportunity.
Standard FCF implies a more demanding +7.7%, 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 →FSLR
45/100
Narrow Moat
70+ Wide · 40-69 Narrow · <40 None
Narrow moat with revenue predictability as the key competitive advantage. Improving reinvestment efficiency 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.
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 →FSLR
-2.55
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 →FSLR
Insiders 5.5%Institutions 99.6%
No. of Institutional Holders1,590
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 →FSLR
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 →FSLR
38
Sells (3M)
50
Sells (12M)
Total value (12M): $36.04M
BRADLEY ALEXANDER R.
Chief Financial Officer
$2.94M
@ $200.00 · 2026-03-17
DYMBORT JASON E
General Counsel
$1.87M
@ $199.67 · 2026-03-17
VERMA KUNTAL KUMAR
Officer
$114,629
@ $200.40 · 2026-03-17
THEURER NATHAN B
Officer
$26,183
@ $199.87 · 2026-03-17
GLOECKLER MARKUS
Chief Technology Officer
$73,894
@ $200.80 · 2026-03-16
BUEHLER PATRICK JAMES
Officer
$36,144
@ $200.80 · 2026-03-16
KORALEWSKI MICHAEL
Officer
$53,011
@ $200.80 · 2026-03-16
SLOAN SAMANTHA L.
Officer
$24,096
@ $200.80 · 2026-03-16
ANTOUN GEORGES J
Officer
$49,196
@ $200.80 · 2026-03-16
STOCKDALE CAROLINE
Officer
$67,268
@ $200.80 · 2026-03-16
WIDMAR MARK R
Chief Executive Officer
$388,950
@ $200.80 · 2026-03-16
VERMA KUNTAL KUMAR
Officer
$79,846
@ $195.70 · 2026-03-10
THEURER NATHAN B
Officer
$63,407
@ $195.70 · 2026-03-10
BRADLEY ALEXANDER R.
Chief Financial Officer
$334,272
@ $190.36 · 2026-03-09
GLOECKLER MARKUS
Chief Technology Officer
$252,227
@ $190.36 · 2026-03-09
BUEHLER PATRICK JAMES
Officer
$132,681
@ $190.36 · 2026-03-09
DYMBORT JASON E
General Counsel
$248,420
@ $190.36 · 2026-03-09
KORALEWSKI MICHAEL
Officer
$143,912
@ $190.36 · 2026-03-09
VERMA KUNTAL KUMAR
Officer
$263,839
@ $190.36 · 2026-03-09
THEURER NATHAN B
Officer
$29,887
@ $190.36 · 2026-03-09
SLOAN SAMANTHA L.
Officer
$57,679
@ $190.36 · 2026-03-09
ANTOUN GEORGES J
Officer
$150,575
@ $190.36 · 2026-03-09
STOCKDALE CAROLINE
Officer
$198,165
@ $190.36 · 2026-03-09
WIDMAR MARK R
Chief Executive Officer
$1.05M
@ $190.36 · 2026-03-09
GLOECKLER MARKUS
Chief Technology Officer
$716,898
@ $196.95 · 2026-03-04
VERMA KUNTAL KUMAR
Officer
$143,380
@ $196.95 · 2026-03-04
THEURER NATHAN B
Officer
$18,119
@ $196.95 · 2026-03-04
BRADLEY ALEXANDER R.
Chief Financial Officer
$625,800
@ $195.93 · 2026-03-03
GLOECKLER MARKUS
Chief Technology Officer
$671,060
@ $195.93 · 2026-03-03
BUEHLER PATRICK JAMES
Officer
$266,661
@ $195.93 · 2026-03-03
DYMBORT JASON E
General Counsel
$641,279
@ $195.93 · 2026-03-03
KORALEWSKI MICHAEL
Officer
$260,587
@ $195.93 · 2026-03-03
VERMA KUNTAL KUMAR
Officer
$671,256
@ $195.93 · 2026-03-03
THEURER NATHAN B
Officer
$9,601
@ $195.94 · 2026-03-03
SLOAN SAMANTHA L.
Officer
$21,748
@ $195.93 · 2026-03-03
ANTOUN GEORGES J
Officer
$381,712
@ $194.95 · 2026-03-03
STOCKDALE CAROLINE
Officer
$323,284
@ $195.93 · 2026-03-03
WIDMAR MARK R
Chief Executive Officer
$1.52M
@ $195.93 · 2026-03-03
SWEENEY MICHAEL T
Director
$1.22M
@ $271.11 · 2025-11-06
ANTOUN GEORGES J
Officer
$9.91M
@ $265.01 · 2025-11-04
SLOAN SAMANTHA L.
Officer
$26,386
@ $188.47 · 2025-09-02
DYMBORT JASON E
General Counsel
$392,762
@ $215.33 · 2025-08-19
WIDMAR MARK R
Chief Executive Officer
$462,889
@ $199.44 · 2025-08-15
THEURER NATHAN B
General Counsel
$124,873
@ $182.03 · 2025-08-14
WIDMAR MARK R
Chief Executive Officer
$5.15M
@ $185.71 · 2025-08-13
BUEHLER PATRICK JAMES
Officer
$288,000
@ $180.00 · 2025-07-03
BUEHLER PATRICK JAMES
Officer
$278,481
@ $149.08 · 2025-06-03
KORALEWSKI MICHAEL
Officer
$466,878
@ $158.21 · 2025-06-02
GLOECKLER MARKUS
Chief Technology Officer
$1.48M
@ $155.05 · 2025-05-28
BRADLEY ALEXANDER R.
Chief Financial Officer
$1.32M
@ $150.00 · 2025-05-12
VERMA KUNTAL KUMAR
Officer
$64,301
@ $127.83 · 2025-03-18
BRADLEY ALEXANDER R.
Chief Financial Officer
$80,116
@ $133.75 · 2025-03-17
GLOECKLER MARKUS
Chief Technology Officer
$50,825
@ $133.75 · 2025-03-17
BUEHLER PATRICK JAMES
Officer
$24,878
@ $133.75 · 2025-03-17
DYMBORT JASON E
General Counsel
$48,551
@ $133.75 · 2025-03-17
KORALEWSKI MICHAEL
Officer
$36,514
@ $133.75 · 2025-03-17
VERMA KUNTAL KUMAR
Officer
$54,035
@ $133.75 · 2025-03-17
THEURER NATHAN B
Officer
$4,681
@ $133.74 · 2025-03-17
ANTOUN GEORGES J
Officer
$30,629
@ $133.75 · 2025-03-17
STOCKDALE CAROLINE
Officer
$45,609
@ $133.75 · 2025-03-17
WIDMAR MARK R
Chief Executive Officer
$262,952
@ $133.75 · 2025-03-17
BRADLEY ALEXANDER R.
Chief Financial Officer
$51,987
@ $132.96 · 2025-03-07
GLOECKLER MARKUS
Chief Technology Officer
$50,259
@ $132.96 · 2025-03-07
BUEHLER PATRICK JAMES
Officer
$25,528
@ $132.96 · 2025-03-07
DYMBORT JASON E
General Counsel
$42,547
@ $132.96 · 2025-03-07
KORALEWSKI MICHAEL
Officer
$24,996
@ $132.96 · 2025-03-07
VERMA KUNTAL KUMAR
Officer
$55,710
@ $132.96 · 2025-03-07
THEURER NATHAN B
Officer
$4,122
@ $132.97 · 2025-03-07
ANTOUN GEORGES J
Officer
$19,545
@ $132.96 · 2025-03-07
STOCKDALE CAROLINE
Officer
$30,182
@ $132.96 · 2025-03-07
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 →FSLR
😨Fear(40/100)
"Market is pessimistic — investigate whether fears are temporary or structural"
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 →FSLR
⚪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: Fear (40)
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)