WallStSmart

Berkshire Hathaway Inc (BRK-B)vsIREN Ltd (IREN)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

Berkshire Hathaway Inc generates 48961% more annual revenue ($371.44B vs $757.10M). IREN leads profitability with a 51.5% profit margin vs 18.0%. IREN appears more attractively valued with a PEG of 4.06. IREN earns a higher WallStSmart Score of 57/100 (C).

BRK-B

Buy

54

out of 100

Grade: C-

Growth: 3.3Profit: 7.5Value: 5.0Quality: 8.0
Piotroski: 3/9Altman Z: 2.60

IREN

Buy

57

out of 100

Grade: C

Growth: 10.0Profit: 5.5Value: 3.7Quality: 6.0
Piotroski: 4/9Altman Z: 1.08

Key Strengths & Concerns

Side-by-side fundamental analysis

Key Strengths

BRK-B6 strengths · Avg: 9.2/10
Market CapQuality
$1.03T10/10

Mega-cap, among the largest globally

Price/BookValuation
0.0x10/10

Reasonable price relative to book value

Operating MarginProfitability
33.0%10/10

Strong operational efficiency at 33.0%

Debt/EquityHealth
0.199/10

Conservative balance sheet, low leverage

P/E RatioValuation
15.3x8/10

Attractively priced relative to earnings

Free Cash FlowQuality
$4.99B8/10

Generating 5.0B in free cash flow

IREN4 strengths · Avg: 9.3/10
Profit MarginProfitability
51.5%10/10

Keeps 52 of every $100 in revenue as profit

Revenue GrowthGrowth
59.0%10/10

Revenue surging 59.0% year-over-year

Return on EquityProfitability
20.5%9/10

Every $100 of equity generates 21 in profit

EPS GrowthGrowth
42.9%8/10

Earnings expanding 42.9% YoY

Areas to Watch

BRK-B4 concerns · Avg: 2.3/10
Piotroski F-ScoreQuality
3/93/10

Weak financial health signals

PEG RatioValuation
10.062/10

Expensive relative to growth rate

Revenue GrowthGrowth
-0.7%2/10

Revenue declined 0.7%

EPS GrowthGrowth
-2.5%2/10

Earnings declined 2.5%

IREN4 concerns · Avg: 2.8/10
P/E RatioValuation
30.9x4/10

Premium valuation, high expectations priced in

Debt/EquityHealth
1.533/10

Elevated debt levels

PEG RatioValuation
4.062/10

Expensive relative to growth rate

Free Cash FlowQuality
$-208.96M2/10

Negative free cash flow — burning cash

Comparative Analysis Report

WallStSmart Research

Bull Case : BRK-B

The strongest argument for BRK-B centers on Market Cap, Price/Book, Operating Margin. Profitability is solid with margins at 18.0% and operating margin at 33.0%.

Bull Case : IREN

The strongest argument for IREN centers on Profit Margin, Revenue Growth, Return on Equity. Profitability is solid with margins at 51.5% and operating margin at -45.8%. Revenue growth of 59.0% demonstrates continued momentum.

Bear Case : BRK-B

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

Bear Case : IREN

The primary concerns for IREN are P/E Ratio, Debt/Equity, PEG Ratio. Debt-to-equity of 1.53 is elevated, increasing financial risk.

Key Dynamics to Monitor

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

IREN carries more volatility with a beta of 4.31 — expect wider price swings.

IREN is growing revenue faster at 59.0% — sustainability is the question.

BRK-B generates stronger free cash flow (5.0B), providing more financial flexibility.

Bottom Line

IREN scores higher overall (57/100 vs 54/100), backed by strong 51.5% margins and 59.0% revenue growth. Both earn "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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IREN Ltd

FINANCIAL SERVICES · CAPITAL MARKETS · USA

IREN Limited (Ticker: IREN) is a vertically integrated data-center and digital infrastructure company traded on the Nasdaq. Headquartered in Sydney, Australia, it develops, owns and operates large-scale, renewable-powered data centers across North America that support Bitcoin mining, AI cloud services, and high-performance computing workloads. Originally known as Iris Energy Limited before rebranding in 2024, IREN combines its energy infrastructure and computing platforms to generate revenue from cryptocurrency mining and increasingly from GPU-powered AI cloud offerings. The company has secured significant power capacity and major customer contracts as it pivots toward AI data-center growth while maintaining its legacy mining business.

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