Buffett-Style Value Investment Analysis: Nu Holdings Ltd. (NU)

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1️⃣ Circle of Competence Analysis

1.1 Is the Company's Business Easy to Understand?

Business Model

Nu Holdings Ltd. (“Nu”) is a digital banking platform operating primarily in Brazil, Mexico, and Colombia. It offers:

• Credit cards
• Checking accounts (Nu Account)
• Personal loans (secured & unsecured)
• Investment products
• Insurance
• Marketplace services

The company positions itself as a “Money Platform” that integrates financial services into a single digital ecosystem .

Customers

• Retail consumers (low to upper-income segments)
• Micro and small enterprises (MSEs)
• Over 127 million customers as of Q3’25

Revenue Sources

Revenue is primarily generated from:

• Interest income from credit portfolios
• Interchange fees from card transactions
• Loan origination and servicing
• Insurance and investment distribution

The business is financial but operationally straightforward: gather deposits at low cost → underwrite consumer credit → monetize via spread + fees → scale digitally.

Industry

Nu operates in digital banking/fintech — a hybrid of consumer finance + technology. While financial businesses require credit risk understanding, the model is structurally similar to retail banking.

✔ Understandable for investors familiar with banking economics and digital platform models.

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1.2 Is the Company's Business Logic Clear for the Next 10 Years?

Industry Stage

Latin America remains underbanked:

• Brazil: Nu serves 60%+ of adult population
• Mexico & Colombia: accelerating growth

The regional financial services market cap exceeds US$1 trillion .

Structural drivers:

• Low traditional banking penetration
• High fees from incumbents
• Digital adoption acceleration

Market Share

• Brazil card PV share: ~12%
• <5% share in most other product lines
• Credit portfolio: $30.4B (Q3’25)

Significant runway remains.

Demand Stability

Financial services demand is secular and recurring.

Predictability

Predictable in long term:

• Customer growth
• Cross-sell expansion
• ARPAC expansion
• Operating leverage

However, earnings volatility may occur due to:

• Credit cycles
• Interest rate fluctuations
• FX volatility

📌 Conclusion (In Circle of Competence): YES

For investors experienced in banking and fintech economics, NU is well within the circle of competence.

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2️⃣ Durable Competitive Advantage (The Moat)

2.1 Brand

Nu maintains one of the highest NPS scores in its markets .

Monthly ARPAC grew from $4.5 (2021) to $13.4 (Q3’25) .

Brand trust is strong, but pricing power in banking is limited — spreads are competitive.

2.2 Cost Advantage

Monthly cost to serve per active customer:

• ~$0.8–0.9

This is dramatically lower than traditional banks.

Efficiency ratio in Q3’25: 27.7% .

Digital-only model provides structural cost edge.

✔ Sustainable cost advantage.

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2.3 Switching Costs

Moderate:

• Customers integrate payroll deposits
• Primary banking relationships exceed 58% in Brazil
• Deposits reached $38.8B

Switching banks is possible but behavioral friction increases with product depth.

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2.4 Network Effect

Limited classical network effect, but:

• More customers → better data → better underwriting → lower NPL
• More scale → better partner negotiation

Data-driven underwriting is a quasi-network effect.

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2.5 Scale Advantage

Operating leverage visible:

• Revenue Q3’25: $4.2B
• Net income Q3’25: $783M
• ROE: 31%

Scale significantly enhances profitability.

📌 Overall Competitive Advantage Judgment: MEDIUM to STRONG

Cost advantage + scale + brand trust + underwriting data.

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3️⃣ Management

3.1 Integrity

No accounting scandals reported. IFRS reporting and audited controls confirmed .

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3.2 Execution

Customer growth:

• 70.9M Brazil clients (2022)
• 127M total (Q3’25)

Revenue:

• $4.8B (2022)
• $4.2B in single Q3’25 quarter

Execution is exceptional.

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3.3 Alignment

Founder-led company (David Vélez). Dual-class structure maintains long-term control.

Dilution modest relative to growth.

📌 Overall Management Rating: EXCELLENT

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4️⃣ Financials

4.1 Profitability

2022:

• Revenue: $4.8B
• Gross profit: $1.7B

Q3’25:

• Gross margin: ~43%

Strong improving margin profile.

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4.2 Returns

ROE Q3’25: 31% .

For a bank, >20% is exceptional.

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4.3 Free Cash Flow

As a growing fintech bank:

• FCF reinvested into loan growth
• Profitability now strongly positive

Net income Q3’25: $783M .

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4.4 Capital Structure

Deposits: $38.8B Loan-to-Deposit Ratio: 46%

Conservative funding structure.

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4.5 Shareholder Returns

No dividend. Capital reinvested at high ROE → appropriate.

📌 Overall Financial Assessment: STRONG & SCALABLE

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5️⃣ Intrinsic Value

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