WallStSmart

Berkshire Hathaway Inc (BRK-B)vsRiverNorth Managed Duration Municipal Income Fund II Inc. (RMMZ)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

BRK-B leads profitability with a 22.3% profit margin vs 0.0%. BRK-B trades at a lower P/E of 12.7x. BRK-B earns a higher WallStSmart Score of 74/100 (B).

BRK-B

Strong Buy

74

out of 100

Grade: B

Growth: 7.3Profit: 7.5Value: 5.0Quality: 5.5
Piotroski: 3/9Altman Z: 2.59

RMMZ

Avoid

28

out of 100

Grade: F

Growth: 4.3Profit: 3.5Value: 4.0Quality: 4.8
Piotroski: 4/9

Key Strengths & Concerns

Side-by-side fundamental analysis

Key Strengths

BRK-B6 strengths · Avg: 9.5/10
Market CapQuality
$1.07T10/10

Mega-cap, among the largest globally

Price/BookValuation
0.0x10/10

Reasonable price relative to book value

Operating MarginProfitability
32.6%10/10

Strong operational efficiency at 32.6%

EPS GrowthGrowth
107.8%10/10

Earnings expanding 107.8% YoY

Profit MarginProfitability
22.3%9/10

Keeps 22 of every $100 in revenue as profit

P/E RatioValuation
12.7x8/10

Attractively priced relative to earnings

RMMZ0 strengths · Avg: 0/10

No standout strengths identified

Areas to Watch

BRK-B2 concerns · Avg: 2.5/10
Piotroski F-ScoreQuality
3/93/10

Weak financial health signals

PEG RatioValuation
10.062/10

Expensive relative to growth rate

RMMZ4 concerns · Avg: 3.5/10
Revenue GrowthGrowth
0.0%4/10

0.0% revenue growth

EPS GrowthGrowth
0.0%4/10

0.0% earnings growth

Market CapQuality
$125.56M3/10

Smaller company, higher risk/reward

Profit MarginProfitability
0.0%3/10

0.0% margin — thin

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 22.3% and operating margin at 32.6%.

Bull Case : RMMZ

RMMZ has a balanced fundamental profile.

Bear Case : BRK-B

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

Bear Case : RMMZ

The primary concerns for RMMZ are Revenue Growth, EPS Growth, Market Cap. A P/E of 185.6x leaves little room for execution misses.

Key Dynamics to Monitor

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

BRK-B is growing revenue faster at 10.0% — sustainability is the question.

BRK-B generates stronger free cash flow (5.6B), providing more financial flexibility.

Monitor INSURANCE - DIVERSIFIED industry trends, competitive dynamics, and regulatory changes.

Bottom Line

BRK-B scores higher overall (74/100 vs 28/100), backed by strong 22.3% margins. Both earn "Strong Buy" and "Avoid" 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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RiverNorth Managed Duration Municipal Income Fund II Inc.

FINANCIAL SERVICES · ASSET MANAGEMENT · USA

RiverNorth Managed Duration Municipal Income Fund II Inc. (RMMZ) is a closed-end fund that seeks to provide investors with tax-exempt income by investing in a diversified portfolio of high-quality municipal securities. The fund employs strategic duration management to actively navigate interest rate fluctuations, aiming to optimize yield while preserving capital. With its dual emphasis on enhancing income potential and effective risk management, RMMZ presents an attractive opportunity for institutional investors seeking to bolster their fixed-income portfolios with robust municipal bond investments in various market conditions.

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