WallStSmart

Berkshire Hathaway Inc (BRK-B)vsNB Bancorp, Inc. Common Stock (NBBK)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

Berkshire Hathaway Inc generates 166145% more annual revenue ($375.39B vs $225.81M). NBBK leads profitability with a 23.3% profit margin vs 19.3%. BRK-B trades at a lower P/E of 14.1x. NBBK earns a higher WallStSmart Score of 66/100 (B-).

BRK-B

Buy

62

out of 100

Grade: C+

Growth: 6.7Profit: 6.5Value: 5.0Quality: 8.0
Piotroski: 3/9Altman Z: 2.59

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

BRK-B6 strengths · Avg: 9.2/10
Market CapQuality
$1.02T10/10

Mega-cap, among the largest globally

Price/BookValuation
0.0x10/10

Reasonable price relative to book value

EPS GrowthGrowth
119.6%10/10

Earnings expanding 119.6% YoY

Debt/EquityHealth
0.209/10

Conservative balance sheet, low leverage

P/E RatioValuation
14.1x8/10

Attractively priced relative to earnings

Free Cash FlowQuality
$5.45B8/10

Generating 5.5B in free cash flow

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

BRK-B3 concerns · Avg: 3.0/10
Revenue GrowthGrowth
4.4%4/10

4.4% revenue growth

Piotroski F-ScoreQuality
3/93/10

Weak financial health signals

PEG RatioValuation
10.062/10

Expensive relative to growth rate

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 : BRK-B

The strongest argument for BRK-B centers on Market Cap, Price/Book, EPS Growth. Profitability is solid with margins at 19.3% and operating margin at 14.3%.

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 : BRK-B

The primary concerns for BRK-B are Revenue Growth, Piotroski F-Score, PEG Ratio.

Bear Case : NBBK

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

Key Dynamics to Monitor

BRK-B profiles as a value stock while NBBK is a growth play — different risk/reward profiles.

BRK-B carries more volatility with a beta of 0.62 — expect wider price swings.

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

BRK-B generates stronger free cash flow (5.5B), providing more financial flexibility.

Bottom Line

NBBK scores higher overall (66/100 vs 62/100), backed by strong 23.3% margins and 36.3% revenue growth. Both earn "Strong Buy" and "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.

Berkshire Hathaway Inc

FINANCIAL SERVICES · INSURANCE - DIVERSIFIED · USA

Berkshire Hathaway Inc. is an American multinational conglomerate holding company headquartered in Omaha, Nebraska, United States. The company wholly owns GEICO, Duracell, Dairy Queen, BNSF, Lubrizol, Fruit of the Loom, Helzberg Diamonds, Long & Foster, FlightSafety International, Pampered Chef, Forest River, and NetJets, and also owns 38.6% of Pilot Flying J; and significant minority holdings in public companies Kraft Heinz Company (26.7%), American Express (18.8%), The Coca-Cola Company (9.32%), Bank of America (11.9%), and Apple (6.3%).

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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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