Compare Stocks › STT vs UNH

State Street Corporation (STT) vs UnitedHealth Group Incorporated (UNH): Which Is the Better Buy in 2026?

As of 2026-11-01, STT is undervalued at $170, with a DCF intrinsic value of $704 and a margin of safety of 76%. UNH is overvalued at $407, with an intrinsic value of $367 and a margin of safety of -11%. Of the two, STT has the wider margin of safety.

STT
State Street Corporation
$169.77
VS
UNH
UnitedHealth Group Incorporated
$406.97

Rewards

STT
  • ★State Street Corporation scores 74/100 on the Economic Moat Score (Wide Moat), with revenue predictability as the strongest competitive dimension.
  • ★Share count has been reduced by 20% over the past 4 years through buybacks, increasing each share's claim on earnings.
  • ★PEG ratio of 0.63 suggests the stock is undervalued relative to its growth rate — paying less than 1x for each unit of earnings growth.
UNH
  • ★UnitedHealth Group Incorporated scores 73/100 on the Economic Moat Score (Wide Moat), with revenue predictability as the strongest competitive dimension.

Risks

STT
  • ⚠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.
  • ⚠Insiders have sold $3.6M worth of stock in the past 3 months — significant insider liquidation.
UNH
  • ⚠ROIC has declined by 6.9 percentage points over the past 4 years, which may signal competitive erosion.
  • ⚠Gross margin of 20.0% is low, suggesting a competitive or commodity-like market with limited pricing power.
  • ⚠FCF yield of 7.3% suggests reasonable valuation assuming continued moderate growth.

Key Valuation Metrics

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STT
UNH
Valuation
N/A
Free Cash Flow
$26.50B
N/A
FCF Yield
7.25%
13.87
Trailing P/E
23.23
10.93
Forward P/E
17.48
Quality & Moat
8.13%
ROIC
11.51%
13.08%
ROE
15.77%
0.00%
Gross Margin
20.05%
0.63
PEG Ratio
1.03
Balance Sheet Safety
N/A
Net Debt / Equity
0.43
N/A
Interest Coverage
N/A
N/A
Net Debt / EBITDA
1.58
2.17%
Dividend Yield
2.28%
STT: 3Ties: 2UNH: 3
STTUNH

Historical Fundamentals

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STT

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.

UNH

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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STT
$2.01
created per $1 retained over 3 years
Exceptional Value Creator
Σ Retained
$4.45B
Δ Market Cap
+$8.93B
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
UNH
$-7.37
created per $1 retained over 3 years
Market Cap Declined
Σ Retained
$26.63B
Δ Market Cap
$-196.16B
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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STT
75.9% Margin of Safety
Price is 75.9% below estimated fair value
Current Price: $169.77
Fair Value: $704.31
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
UNH
10.8% Overvalued
Price is 10.8% above estimated fair value
Current Price: $406.97
Fair Value: $367.30
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued

Reverse DCF — Market-Implied Growth

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STT

Requires positive FCF to compute implied growth rate.

UNH

What growth rate is the market pricing in at $407?

+14.2%
Market-Implied Owner Earnings Growth
Standard FCF implies +4.2%

The market implies +14.2% Owner Earnings growth, above historical trends.

Standard FCF implies a demanding +4.2%, reflecting heavy growth investment.

Economic Moat Score

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STT
74/100
Wide Moat
70+ Wide · 40-69 Narrow · <40 None

Wide moat driven primarily by revenue predictability. Margin Stability 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.
UNH
73/100
Wide Moat
70+ Wide · 40-69 Narrow · <40 None

Wide moat driven primarily by revenue predictability. Margin Stability 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.

Forensic Accounting

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STT
-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.
UNH
-2.45
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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STT
Insiders 0.4%Institutions 96.0%Retail & Other 3.6%
No. of Institutional Holders1,724
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.
UNH
Insiders 0.2%Institutions 89.6%Retail & Other 10.1%
No. of Institutional Holders4,333
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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STT
0
Buys (3M)
1
Buys (12M)
Total value (12M): $312,475
PORTER BRIAN J
Director
$312,475
@ $124.99 · 2026-03-05
Open market purchases · includes direct & indirect ownership · excludes option exercises
UNH
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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STT
2
Sells (3M)
19
Sells (12M)
Total value (12M): $24.51M
HU W BRADFORD
Officer
$1.20M
@ $168.63 · 2026-10-26
O'HANLEY RONALD P.
Chief Executive Officer
$2.40M
@ $164.60 · 2026-10-20
SCHAEFER ELIZABETH
Officer
$90,595
@ $181.19 · 2026-08-03
HU W BRADFORD
Officer
$1.80M
@ $184.52 · 2026-07-24
O'HANLEY RONALD P.
Chief Executive Officer
$2.68M
@ $184.17 · 2026-07-21
HORGAN KATHRYN M
Officer
$1.02M
@ $184.17 · 2026-07-21
HORGAN KATHRYN M
Officer
$895,290
@ $162.78 · 2026-06-11
RICHARDS MICHAEL L
Officer
$243,210
@ $162.14 · 2026-06-08
O'HANLEY RONALD P.
Chief Executive Officer
$2.26M
@ $155.35 · 2026-05-26
HU W BRADFORD
Officer
$1.43M
@ $155.35 · 2026-05-26
SCHAEFER ELIZABETH
Officer
$75,435
@ $150.87 · 2026-05-13
RICHARDS MICHAEL L
Officer
$461,670
@ $153.89 · 2026-04-22
TAHIRI MOSTAPHA
Chief Operating Officer
$1.47M
@ $152.93 · 2026-04-22
PLANSKY JOHN
Officer
$2.00M
@ $124.32 · 2026-03-11
O'HANLEY RONALD P.
Chief Executive Officer
$3.66M
@ $125.70 · 2026-03-02
RICHARDS MICHAEL L
Officer
$319,775
@ $127.91 · 2026-02-24
HORGAN KATHRYN M
Officer
$721,420
@ $127.10 · 2026-02-23
AMBROSIUS JOERG
Officer
$1.12M
@ $128.00 · 2026-02-23
HORGAN KATHRYN M
Officer
$672,890
@ $118.55 · 2025-11-28
RICHARDS MICHAEL L
Officer
$175,860
@ $117.24 · 2025-10-27
RICHARDS MICHAEL L
Officer
$115,170
@ $115.17 · 2025-08-26
O'HANLEY RONALD P.
Chief Executive Officer
$1.50M
@ $112.39 · 2025-08-21
SCHAEFER ELIZABETH
Officer
$175,046
@ $111.07 · 2025-08-19
RICHARDS MICHAEL L
Officer
$108,197
@ $109.29 · 2025-07-22
HORGAN KATHRYN M
Officer
$1.07M
@ $96.61 · 2025-05-30
RICHARDS MICHAEL L
Officer
$70,530
@ $94.04 · 2025-05-09
SCHAEFER ELIZABETH
Officer
$117,936
@ $90.72 · 2025-05-06
TAHIRI MOSTAPHA
Chief Operating Officer
$360,725
@ $90.43 · 2025-05-02
BISEGNA ANTHONY C.
Officer
$310,590
@ $88.74 · 2025-05-01
PLANSKY JOHN
Officer
$1.03M
@ $88.83 · 2025-05-01
DE SAINT AIGNAN PATRICK
Director
$1.94M
@ $98.24 · 2025-02-28
AMBROSIUS JOERG
Officer
$288,202
@ $100.07 · 2025-02-19
DE SAINT AIGNAN PATRICK
Director
$802,479
@ $99.96 · 2025-02-18
FOGARTY ANN
Officer
$368,536
@ $99.47 · 2025-02-18
HORGAN KATHRYN M
Officer
$1.22M
@ $97.97 · 2024-11-25
FOGARTY ANN
Officer
$146,955
@ $97.97 · 2024-11-25
MILROD DONNA M
Officer
$9,631
@ $95.36 · 2024-11-18
Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives
UNH
2
Sells (3M)
3
Sells (12M)
Total value (12M): $944,910
CONWAY PATRICK HUGH
Officer
$455,910
@ $390.00 · 2026-08-21
CONWAY PATRICK HUGH
Officer
$205,000
@ $410.00 · 2026-08-05
CONWAY PATRICK HUGH
Officer
$284,000
@ $355.00 · 2026-04-23
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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STT
FearGreed
😐Neutral(56/100)

"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.
UNH
FearGreed
😏Greed(62/100)

"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

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STT
⚪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 (56)
UNH
⚪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 (62)
View STT Full AnalysisView UNH Full Analysis

Frequently Asked Questions: STT vs UNH

Is State Street Corporation or UnitedHealth Group Incorporated more undervalued in 2026?▼

Based on our discounted cash flow model, STT trades at a 75.9% margin of safety (intrinsic value $704 vs. price $170), compared to UNH's -10.8% margin of safety (intrinsic $367 vs. $407).

Which stock has a wider economic moat, State Street Corporation or UnitedHealth Group Incorporated?▼

STT scores 74/100 (Wide moat), while UNH scores 73/100 (Wide moat). The moat score measures competitive advantage durability across ROIC consistency, margin stability, revenue predictability, and reinvestment efficiency.

Is State Street Corporation in financial distress?▼

STT's Altman Z-Score of 0.2 places it in the Distress zone, signaling elevated bankruptcy risk. UNH scores 2.9 (Grey 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, State Street Corporation or UnitedHealth Group Incorporated?▼

UNH earns 11.5% ROIC versus STT's 8.1%. A higher ROIC means the company generates more profit per dollar of capital employed, a hallmark of durable competitive advantage in Buffett-style analysis.

Which dividend is safer, State Street Corporation's or UnitedHealth Group Incorporated's?▼

STT's dividend earns a safety score of 94/100 (Very Safe), compared to UNH's 84/100 (Very Safe). STT has raised its dividend for 3 consecutive years.

STT vs UNH: Which Is the Better Buy in 2026? | SafetyMargin.io