WallStSmart

Mizuho Financial Group Inc. (MFG)vsNB Bancorp, Inc. Common Stock (NBBK)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

Mizuho Financial Group Inc. generates 1949266% more annual revenue ($4.40T vs $225.81M). MFG leads profitability with a 28.4% profit margin vs 23.3%. NBBK trades at a lower P/E of 14.4x. MFG earns a higher WallStSmart Score of 78/100 (B+).

MFG

Strong Buy

78

out of 100

Grade: B+

Growth: 9.3Profit: 7.5Value: 5.7Quality: 4.0
Piotroski: 6/9Altman Z: 0.29

NBBK

Strong Buy

66

out of 100

Grade: B-

Growth: 8.7Profit: 6.5Value: 6.0Quality: 5.8
Piotroski: 3/9Altman Z: 1.38

Key Strengths & Concerns

Side-by-side fundamental analysis

Key Strengths

MFG6 strengths · Avg: 9.3/10
Operating MarginProfitability
32.5%10/10

Strong operational efficiency at 32.5%

EPS GrowthGrowth
680.0%10/10

Earnings expanding 680.0% YoY

Free Cash FlowQuality
$487.72B10/10

Generating 487.7B in free cash flow

Market CapQuality
$115.97B9/10

Large-cap with strong market position

Profit MarginProfitability
28.4%9/10

Keeps 28 of every $100 in revenue as profit

P/E RatioValuation
15.1x8/10

Attractively priced relative to earnings

NBBK6 strengths · Avg: 9.3/10
Price/BookValuation
1.0x10/10

Reasonable price relative to book value

Operating MarginProfitability
34.9%10/10

Strong operational efficiency at 34.9%

Revenue GrowthGrowth
36.3%10/10

Revenue surging 36.3% year-over-year

Profit MarginProfitability
23.3%9/10

Keeps 23 of every $100 in revenue as profit

Debt/EquityHealth
0.239/10

Conservative balance sheet, low leverage

P/E RatioValuation
14.4x8/10

Attractively priced relative to earnings

Areas to Watch

MFG3 concerns · Avg: 2.3/10
PEG RatioValuation
1.654/10

Expensive relative to growth rate

Altman Z-ScoreHealth
0.292/10

Distress zone — elevated risk

Debt/EquityHealth
5.881/10

Elevated debt levels

NBBK4 concerns · Avg: 2.8/10
Market CapQuality
$863.34M3/10

Smaller company, higher risk/reward

Return on EquityProfitability
6.3%3/10

ROE of 6.3% — below average capital efficiency

Piotroski F-ScoreQuality
3/93/10

Weak financial health signals

Altman Z-ScoreHealth
1.382/10

Distress zone — elevated risk

Comparative Analysis Report

WallStSmart Research

Bull Case : MFG

The strongest argument for MFG centers on Operating Margin, EPS Growth, Free Cash Flow. Profitability is solid with margins at 28.4% and operating margin at 32.5%. Revenue growth of 16.7% demonstrates continued momentum.

Bull Case : NBBK

The strongest argument for NBBK centers on Price/Book, Operating Margin, Revenue Growth. Profitability is solid with margins at 23.3% and operating margin at 34.9%. Revenue growth of 36.3% demonstrates continued momentum.

Bear Case : MFG

The primary concerns for MFG are PEG Ratio, Altman Z-Score, Debt/Equity. Debt-to-equity of 5.88 is elevated, increasing financial risk.

Bear Case : NBBK

The primary concerns for NBBK are Market Cap, Return on Equity, Piotroski F-Score.

Key Dynamics to Monitor

MFG carries more volatility with a beta of 0.39 — expect wider price swings.

NBBK is growing revenue faster at 36.3% — sustainability is the question.

MFG generates stronger free cash flow (487.7B), providing more financial flexibility.

Monitor BANKS - REGIONAL industry trends, competitive dynamics, and regulatory changes.

Bottom Line

MFG scores higher overall (78/100 vs 66/100), backed by strong 28.4% margins and 16.7% revenue growth. Both earn "Strong Buy" and "Strong Buy" ratings respectively — the choice depends on your investment horizon and risk tolerance.

This analysis is generated from publicly available financial data. Not financial advice.

Mizuho Financial Group Inc.

FINANCIAL SERVICES · BANKS - REGIONAL · USA

Mizuho Financial Group, Inc. engages in banking, trusts, securities and other businesses related to financial services in Japan, America, Europe, Asia / Oceania and internationally. The company is headquartered in Tokyo, Japan.

NB Bancorp, Inc. Common Stock

FINANCIAL SERVICES · BANKS - REGIONAL · USA

NB Bancorp, Inc. is a leading financial holding company located in the Northeastern United States, delivering an extensive range of commercial banking services through its subsidiary, Northbridge Bank. The firm primarily serves small and medium-sized enterprises, as well as individual customers, offering products such as loans, deposit accounts, and treasury management solutions. With a strong commitment to community banking, NB Bancorp utilizes local market expertise to foster enduring client relationships and enrich service quality. The company's strategic focus on operational efficiency and asset growth underpins its efforts to generate sustainable long-term value for shareholders in a competitive banking environment.

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