Compare StocksBAC vs BSX

Bank of America Corporation (BAC) vs Boston Scientific Corporation (BSX): Which Is the Better Buy in 2026?

As of 2026-09-17, BAC is undervalued at $58, with a DCF intrinsic value of $142 and a margin of safety of 59%. BSX is overvalued at $43, with an intrinsic value of $30 and a margin of safety of -45%. Of the two, BAC has the wider margin of safety.

BAC
Bank of America Corporation
$57.70
VS
BSX
Boston Scientific Corporation
$43.01

Rewards

BAC
  • Bank of America Corporation scores 100/100 on the Economic Moat Score (Wide Moat), with revenue predictability as the strongest competitive dimension.
  • PEG ratio of 0.90 suggests the stock is undervalued relative to its growth rate — paying less than 1x for each unit of earnings growth.
BSX
  • Gross margin of 69.2% indicates strong pricing power — typical of businesses with significant intellectual property or brand strength.
  • Free cash flow has grown at a 55.0% CAGR over the past 4 years, demonstrating strong earnings power growth.
  • Each dollar of retained earnings has created $3.37 of earning power — management is an exceptional capital allocator.

Risks

BAC
  • Gross margin of 0.0% is low, suggesting a competitive or commodity-like market with limited pricing power.
  • Altman Z-Score of 0.22 places the company in the distress zone — financial patterns resemble those of companies that experienced bankruptcy.
BSX
  • FCF yield of 5.5% suggests reasonable valuation assuming continued moderate growth.

Key Valuation Metrics

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BAC
BSX
Valuation
N/A
Free Cash Flow
$3.40B
N/A
FCF Yield
5.46%
13.32
Trailing P/E
17.41
10.90
Forward P/E
12.55
Quality & Moat
4.37%
ROIC
10.05%
11.20%
ROE
15.34%
0.00%
Gross Margin
69.19%
0.90
PEG Ratio
0.63
Balance Sheet Safety
N/A
Net Debt / Equity
0.48
N/A
Interest Coverage
N/A
N/A
Net Debt / EBITDA
2.12
2.21%
Dividend Yield
0.00%
BAC: 3Ties: 1BSX: 4
BACBSX

Historical Fundamentals

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BAC

Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation. The dashed forward point is the forward P/E — today's price ÷ analyst consensus EPS.

BSX

Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation. The dashed forward point is the forward P/E — today's price ÷ analyst consensus EPS.

Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation. The dashed forward point is the forward P/E — today's price ÷ analyst consensus EPS.

$1 Retained Earnings Test

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BAC
$2.37
created per $1 retained over 3 years
Exceptional Value Creator
Σ Retained
$55.63B
Δ Market Cap
+$131.83B
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
BSX
$11.89
created per $1 retained over 3 years
Exceptional Value Creator
Σ Retained
$6.32B
Δ Market Cap
+$75.08B
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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BAC
59.4% Margin of Safety
Price is 59.4% below estimated fair value
Current Price: $57.70
Fair Value: $142.10
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
BSX
45.0% Overvalued
Price is 45.0% above estimated fair value
Current Price: $43.01
Fair Value: $29.66
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued

Reverse DCF — Market-Implied Growth

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BAC

Requires positive FCF to compute implied growth rate.

BSX

What growth rate is the market pricing in at $43?

+10.0%
Market-Implied Owner Earnings Growth
Standard FCF implies +8.9%

The market implies +10.0% Owner Earnings growth, below historical trends — potential opportunity.

Standard FCF implies a more demanding +8.9%, reflecting heavy growth investment expected to generate future returns.

Economic Moat Score

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

Wide moat driven primarily by revenue predictability. Reinvestment Efficiency is the area most vulnerable to competitive pressure.

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.
BSX
66/100
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 5 years of fundamental data.

Forensic Accounting

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BAC
-2.31
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.
BSX
-2.51
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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BAC
Insiders 7.0%Institutions 71.3%Retail & Other 21.7%
No. of Institutional Holders4,542
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.
BSX
Insiders 0.3%Institutions 94.8%Retail & Other 5.0%
No. of Institutional Holders2,204
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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BAC
0
Buys (3M)
0
Buys (12M)
No open market insider purchases found.
Open market purchases · includes direct & indirect ownership · excludes option exercises
BSX
5
Buys (3M)
8
Buys (12M)
Total value (12M): $10.04M
MORANO SUSAN E.
Director
$100,408
@ $49.22 · 2026-08-25
HABIGER DAVID C
Director
$99,937
@ $47.59 · 2026-08-05
HABIGER DAVID C
Director
$56,887
@ $48.13 · 2026-08-04
MAHONEY MICHAEL F
Chief Executive Officer
$9.00M
@ $48.33 · 2026-08-03
LUDWIG EDWARD J.
Director
$227,400
@ $45.48 · 2026-07-31
LUDWIG EDWARD J.
Director
$202,914
@ $56.68 · 2026-05-20
HABIGER DAVID C
Director
$251,098
@ $56.43 · 2026-05-20
PEGUS CHERYL
Director
$99,987
@ $56.49 · 2026-05-20
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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BAC
0
Sells (3M)
5
Sells (12M)
Total value (12M): $20.17M
MENSAH BERNARD AMPONSAH
Officer
$4.41M
@ $46.94 · 2026-03-12
BRONSTEIN SHERI B
Officer
$2.99M
@ $49.91 · 2026-03-05
SCRIVENER THOMAS M
Officer
$2.49M
@ $49.82 · 2026-03-05
ATHANASIA DEAN C
President
$6.86M
@ $50.21 · 2026-03-03
BORTHWICK ALASTAIR M.
Chief Financial Officer
$3.42M
@ $50.24 · 2026-02-27
Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives
BSX
0
Sells (3M)
6
Sells (12M)
Total value (12M): $29.27M
MAHONEY MICHAEL F
Chief Executive Officer
$15.04M
@ $93.49 · 2026-02-02
BUTCHER ARTHUR C
Officer
$1.76M
@ $101.55 · 2025-12-01
ZANE ELLEN M
Director
$1.27M
@ $98.28 · 2025-11-06
FITZGERALD JOSEPH MICHAEL
Officer
$4.97M
@ $99.47 · 2025-11-03
ZANE ELLEN M
Director
$1.31M
@ $101.38 · 2025-10-28
FITZGERALD JOSEPH MICHAEL
Officer
$4.92M
@ $98.47 · 2025-10-01
FITZGERALD JOSEPH MICHAEL
Officer
$5.27M
@ $105.43 · 2025-09-02
BUTCHER ARTHUR C
Officer
$1.81M
@ $104.63 · 2025-08-01
FITZGERALD JOSEPH MICHAEL
Officer
$5.23M
@ $104.63 · 2025-08-01
FUJIMORI YOSHIAKI
Director
$310,378
@ $106.99 · 2025-07-29
LUDWIG EDWARD J.
Director
$424,120
@ $106.03 · 2025-07-25
FITZGERALD JOSEPH MICHAEL
Officer
$5.35M
@ $106.97 · 2025-07-01
FITZGERALD JOSEPH MICHAEL
President
$5.80M
@ $102.88 · 2025-06-04
MAHONEY MICHAEL F
Chief Executive Officer
$17.05M
@ $103.69 · 2025-06-02
LUDWIG EDWARD J.
Director
$418,368
@ $104.59 · 2025-05-29
BROWN VANCE R
General Counsel
$513,583
@ $106.42 · 2025-05-21
SORENSON JOHN BRADLEY
Officer
$477,957
@ $104.54 · 2025-05-05
BUTCHER ARTHUR C
Officer
$1.77M
@ $102.06 · 2025-05-01
MAHONEY MICHAEL F
Chief Executive Officer
$16.85M
@ $102.48 · 2025-05-01
BROWN VANCE R
General Counsel
$458,904
@ $95.09 · 2025-04-21
MAHONEY MICHAEL F
Chief Executive Officer
$16.45M
@ $100.01 · 2025-04-01
BROWN VANCE R
General Counsel
$486,702
@ $100.85 · 2025-03-21
WOODWORTH EMILY
General Counsel
$800,897
@ $104.95 · 2025-03-04
WOODWORTH EMILY
Officer
$999,872
@ $101.13 · 2025-02-28
MIRVISS JEFFREY B
Officer
$766,921
@ $104.16 · 2025-02-25
ZANE ELLEN M
Director
$1.42M
@ $104.23 · 2025-02-24
BROWN VANCE R
General Counsel
$504,993
@ $104.64 · 2025-02-21
SORENSON JOHN BRADLEY
Officer
$624,861
@ $104.84 · 2025-02-19
MIRVISS JEFFREY B
Officer
$159,078
@ $105.35 · 2025-02-19
BRENNAN DANIEL J
Chief Financial Officer
$8.92M
@ $105.10 · 2025-02-19
SORENSON JOHN BRADLEY
Officer
$127,678
@ $106.31 · 2025-02-14
MIRVISS JEFFREY B
Officer
$1.37M
@ $105.06 · 2025-02-12
SORENSON JOHN BRADLEY
Officer
$671,249
@ $105.06 · 2025-02-12
BRENNAN DANIEL J
Chief Financial Officer
$1.59M
@ $105.07 · 2025-02-12
LUDWIG EDWARD J.
Director
$1.27M
@ $105.48 · 2025-02-11
SORENSON JOHN BRADLEY
Officer
$685,244
@ $104.97 · 2025-02-07
BUTCHER ARTHUR C
Officer
$1.76M
@ $101.80 · 2025-02-03
MIRVISS JEFFREY B
Officer
$642,658
@ $89.86 · 2025-01-03
SORENSON JOHN BRADLEY
Officer
$581,241
@ $89.96 · 2025-01-03
BRENNAN DANIEL J
Chief Financial Officer
$870,636
@ $89.86 · 2025-01-03
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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BAC
FearGreed
😐Neutral(53/100)

"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.
BSX
FearGreed
😨Fear(30/100)

"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.

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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BAC
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 (53)
BSX
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 (30)
View BAC Full AnalysisView BSX Full Analysis

Frequently Asked Questions: BAC vs BSX

Is Bank of America Corporation or Boston Scientific Corporation more undervalued in 2026?

Based on our discounted cash flow model, BAC trades at a 59.4% margin of safety (intrinsic value $142 vs. price $58), compared to BSX's -45.0% margin of safety (intrinsic $30 vs. $43).

Which stock has a wider economic moat, Bank of America Corporation or Boston Scientific Corporation?

BAC scores 100/100 (Wide moat), while BSX scores 66/100 (Narrow moat). The moat score measures competitive advantage durability across ROIC consistency, margin stability, revenue predictability, and reinvestment efficiency.

Is Bank of America Corporation in financial distress?

BAC's Altman Z-Score of 0.2 places it in the Distress zone, signaling elevated bankruptcy risk. BSX scores 5.5 (Safe zone). The Altman Z-Score is a five-factor model that predicts insolvency within two years; scores below 1.81 indicate significant distress.

Which stock has higher return on invested capital, Bank of America Corporation or Boston Scientific Corporation?

BSX earns 10.0% ROIC versus BAC's 4.4%. A higher ROIC means the company generates more profit per dollar of capital employed, a hallmark of durable competitive advantage in Buffett-style analysis.

BAC vs BSX: Which Is the Better Buy in 2026? | SafetyMargin.io