WallStSmart

Berkshire Hathaway Inc (BRK-B)vsRiverNorth Managed Duration Municipal Income Fund Inc (RMM)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

BRK-B leads profitability with a 18.0% profit margin vs 0.0%. BRK-B trades at a lower P/E of 15.3x. BRK-B earns a higher WallStSmart Score of 54/100 (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

RMM

Avoid

27

out of 100

Grade: F

Growth: 4.3Profit: 3.5Value: 4.0Quality: 6.8
Piotroski: 4/9

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

RMM0 strengths · Avg: 0/10

No standout strengths identified

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%

RMM4 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
$279.91M3/10

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 18.0% and operating margin at 33.0%.

Bull Case : RMM

RMM has a balanced fundamental profile.

Bear Case : BRK-B

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

Bear Case : RMM

The primary concerns for RMM are Revenue Growth, EPS Growth, Market Cap. A P/E of 74.6x leaves little room for execution misses.

Key Dynamics to Monitor

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

RMM is growing revenue faster at 0.0% — sustainability is the question.

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

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

Bottom Line

BRK-B scores higher overall (54/100 vs 27/100), backed by strong 18.0% margins. Both earn "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 Inc

FINANCIAL SERVICES · ASSET MANAGEMENT · USA

RiverNorth Managed Duration Municipal Income Fund Inc (RMM) is a closed-end investment fund focused on delivering high current income through a well-diversified portfolio of municipal securities. Employing a managed duration strategy, RMM effectively navigates interest rate variations to seize favorable opportunities within the municipal bond market. This fund is particularly attractive to institutional investors seeking tax-exempt income, enhancing their fixed-income portfolios with a strong emphasis on tax efficiency. With a commitment to active management and rigorous market research, RMM aims to identify undervalued assets while effectively managing risk in municipal investment, making it a compelling choice for investors looking to optimize income generation.

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