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BlackRock Municipal Income Fund, Inc. (MUI)

$12.09 +$0.36 (+3.11%) |CouncilHOLD · 45 · C
Bottom line: HOLD — our Council read (45/100) and AI Score (45/100) broadly agree.
MCap: $870.38M| Vol: 2.37M|
Data from FMP · Methodology

For informational purposes only. Not financial advice. Analysis by Sedat ANAK, Founder & Editor-in-Chief | AI-powered analysis. Data sourced from SEC filings and institutional-grade financial providers. Editorially reviewed. Not financial advice.

BlackRock Municipal Income Fund, Inc. (MUI) trades at $12.09 with AI Score 45/100 (Grade C). BlackRock Municipal Income Fund, Inc. is a closed-end fund managed by BlackRock Advisors, LLC. Market cap: $870.38M, Sector: Financial services.

Price live · AI analysis from Mar 16, 2026
BlackRock Municipal Income Fund, Inc. is a closed-end fund managed by BlackRock Advisors, LLC. The fund invests in investment-grade municipal bonds exempt from federal income taxes, focusing on bonds with intermediate durations.

Analyst Coverage for MUI: MUI does not currently have published analyst price targets in our coverage universe. This is common for smaller-cap names with limited Wall Street coverage. In the absence of analyst consensus, our AI model evaluates MUI against Financial Services peers across nine fundamental dimensions and assigns an underweight signal based on the underlying data.

Council Score · Weighted Average of 3 Disciplines
HOLD 45/100 · C

MUI: the 1 perspectives are evenly split.

How is this calculated? →
Council Score · 8 perspectives · See tabs for details →

BlackRock Municipal Income Fund, Inc. (MUI) Financial Services Profile

CEOCharles Choon Sik Park
HeadquartersNew York City, US
IPO Year2003

BlackRock Municipal Income Fund, Inc. (MUI) is a closed-end fund specializing in investment-grade municipal bonds with intermediate durations, managed by BlackRock Advisors, LLC. The fund aims to provide income exempt from federal income taxes, operating within the broader asset management sector and leveraging BlackRock's established platform.

Data Provenance | Financial Data Quantitative Analysis NASDAQ Analysis: Mar 16, 2026

What Is the Investment Thesis for MUI?

BlackRock Municipal Income Fund, Inc. (MUI) presents an investment opportunity driven by its focus on tax-exempt municipal bonds. With a market capitalization of $870.38M, MUI offers exposure to a diversified portfolio of investment-grade municipal bonds. The fund's high gross margin of 100.0% indicates efficient management of its assets. However, the high P/E ratio of 336.16 suggests that the fund may be overvalued relative to its earnings. The fund's beta of 0.56 indicates lower volatility compared to the broader market. Key growth catalysts include increased demand for tax-exempt income and favorable interest rate movements. Potential risks include rising interest rates and credit quality deterioration of municipal bonds.

Based on FMP financials and quantitative analysis

MUI Key Highlights

  • Market Cap of $870.38M indicates substantial size and market presence.
  • P/E Ratio of 336.16 suggests a high valuation relative to earnings.
  • Profit Margin of 73.8% demonstrates strong profitability in its operations.
  • Gross Margin of 100.0% reflects efficient management of assets.
  • Beta of 0.56 indicates lower volatility compared to the broader market.

Who Are MUI's Competitors?

MUI is benchmarked below against 8 industry peers on price, market cap, and our AI MoonshotScore.

Company Price Change Market Cap AI Score
CGMRX CGM Realty Fund $22.48 +0.00% $664.59M 44
DRTAX BNY Mellon Municipal Bond Fund $10.86 +0.00% $912.01M 44
JPDEX JPMorgan Tax Aware Equity Fund $41.61 +0.00% $798.12M 44
JUSUX JPMorgan Limited Duration Bond Fund $9.68 +0.10% $1.01B 44
LGI Lazard Global Total Return and Income Fund, Inc. $18.68 +0.35% $243.15M 67
BKT BlackRock Income Trust, Inc. $10.68 +0.42% $259.31M 66
AEUDX American Century Equity Income Fund R6 Class $9.28 +1.31% $6.39B 65
TWEIX American Century Equity Income Investor Class $9.22 -0.32% 7B 65

AI Score by Stock Expert AI · Price data: FMP / Yahoo Finance

What Are MUI's Key Strengths?

  • Strong brand recognition and reputation of BlackRock.
  • Experienced management team with expertise in fixed income.
  • Diversified portfolio of investment-grade municipal bonds.
  • Access to BlackRock's extensive research and resources.

What Are MUI's Weaknesses?

  • High P/E ratio suggests potential overvaluation.
  • Sensitivity to interest rate fluctuations.
  • Dependence on the creditworthiness of municipal issuers.
  • Limited growth potential compared to other asset classes.

What Could Drive MUI Stock Higher?

  • Demand for tax-exempt income continues to drive investment in municipal bonds.
  • Stable or declining interest rates can enhance the value of existing bond holdings.
  • Potential changes in tax laws could increase the attractiveness of tax-advantaged investments.
  • Infrastructure spending initiatives may lead to increased issuance of municipal bonds.

What Are the Key Risks for MUI?

  • Financial-distress signal — its Altman Z-Score of 0.29 sits in the distress zone (elevated bankruptcy risk).
  • Rising interest rates could negatively impact bond prices and fund performance.
  • Credit quality deterioration of municipal bonds could lead to losses.
  • Changes in tax laws could reduce the attractiveness of tax-exempt investments.
  • Competition from other asset managers could put pressure on fees and performance.

What Are the Growth Opportunities for MUI?

  • Increased Demand for Tax-Exempt Income: As tax rates fluctuate and investors seek to minimize their tax liabilities, the demand for tax-exempt municipal bonds is expected to rise. This trend benefits BlackRock Municipal Income Fund, Inc. (MUI) by attracting more investors seeking stable, tax-advantaged income. The market for municipal bonds is substantial, with trillions of dollars outstanding, providing ample opportunity for MUI to grow its assets under management. This growth is ongoing and directly tied to investor demand for tax-efficient investment strategies.
  • Favorable Interest Rate Environment: A stable or declining interest rate environment can enhance the value of existing municipal bond holdings within MUI's portfolio. Lower interest rates typically lead to higher bond prices, benefiting the fund's net asset value (NAV) and overall performance. Monitoring interest rate trends and positioning the portfolio accordingly is crucial for capitalizing on this opportunity. The fund's intermediate duration strategy aims to balance income generation with interest rate risk, making it well-positioned to navigate varying interest rate scenarios.
  • Expansion of Municipal Bond Offerings: BlackRock Municipal Income Fund, Inc. can explore opportunities to expand its offerings within the municipal bond market. This could involve launching new funds focused on specific segments of the municipal bond market, such as green bonds or bonds issued by specific states or municipalities. By diversifying its product line, MUI can attract a broader range of investors and increase its assets under management. This expansion requires careful market research and product development to identify unmet investor needs and ensure compliance with regulatory requirements.
  • Strategic Partnerships and Acquisitions: BlackRock Municipal Income Fund, Inc. can pursue strategic partnerships or acquisitions to enhance its capabilities and expand its market reach. Partnering with other asset managers or financial institutions can provide access to new distribution channels and investment expertise. Acquisitions can bring in additional assets under management and diversify the fund's portfolio. These initiatives require careful due diligence and integration planning to ensure a successful outcome. The timeline for such partnerships or acquisitions can vary depending on market conditions and regulatory approvals.
  • Enhanced Marketing and Investor Education: BlackRock Municipal Income Fund, Inc. can invest in enhanced marketing and investor education initiatives to raise awareness of the benefits of municipal bond investing and the fund's unique value proposition. This could involve creating educational content, hosting webinars, and participating in industry events. By educating investors about the tax advantages and risk-return profile of municipal bonds, MUI can attract new investors and increase its assets under management. These efforts are ongoing and require a consistent commitment to communication and outreach.

What Opportunities Does MUI Have?

  • Increasing demand for tax-exempt income.
  • Favorable interest rate environment.
  • Expansion of municipal bond offerings.
  • Strategic partnerships and acquisitions.

What Threats Does MUI Face?

  • Rising interest rates.
  • Credit quality deterioration of municipal bonds.
  • Changes in tax laws.
  • Increased competition from other asset managers.

What Are MUI's Competitive Advantages?

  • Established brand and reputation of BlackRock, Inc.
  • Expertise in fixed income and municipal bond management.
  • Access to BlackRock's research and resources.
  • Diversified portfolio of municipal bonds.

What Does MUI Do?

BlackRock Municipal Income Fund, Inc. (MUI) was established on August 1, 2003, and is domiciled in the United States. As a closed-end fund managed by BlackRock Advisors, LLC, MUI focuses on the fixed income markets, specifically investing in investment-grade municipal bonds. These bonds are exempt from federal income taxes and have a duration between three and ten years at the time of investment. The fund's objective is to provide shareholders with regular, ongoing income through strategic investments in the municipal bond market. BlackRock, Inc., a leading global asset manager, provides the backing and infrastructure for MUI, leveraging its extensive resources and expertise in fixed income management. MUI operates within the broader BlackRock ecosystem, benefiting from the firm's research capabilities and risk management processes. The fund's investment strategy is geared towards generating tax-exempt income for its investors, making it a noteworthy option for individuals and institutions seeking to minimize their federal tax liabilities while maintaining a relatively stable income stream. The fund's performance is closely tied to the municipal bond market and interest rate environment.

What Products and Services Does MUI Offer?

  • Invests in fixed income markets.
  • Focuses on investment-grade municipal bonds.
  • Targets bonds exempt from federal income taxes.
  • Maintains a portfolio with a duration of three to ten years.
  • Provides regular income to shareholders.
  • Manages assets on behalf of investors seeking tax-advantaged returns.

How Does MUI Make Money?

  • Generates income from interest payments on municipal bonds.
  • Manages a portfolio of fixed-income securities to provide tax-exempt income.
  • Charges management fees for its services.
  • Reinvests earnings to grow the fund's assets.

What Industry Does MUI Operate In?

BlackRock Municipal Income Fund, Inc. operates within the asset management industry, specifically focusing on fixed income and municipal bonds. The market for municipal bonds is influenced by factors such as interest rates, tax policies, and the creditworthiness of municipal issuers. The asset management industry is highly competitive, with players like CGMRX, DRTAX, JPDEX, JPI, and JUSUX offering similar investment products. Demand for tax-exempt income drives growth in this segment, while regulatory changes and economic conditions can impact performance. The industry is characterized by a need for specialized expertise in fixed income and municipal finance.

Who Are MUI's Key Customers?

  • Individual investors seeking tax-exempt income.
  • Institutional investors looking for stable, fixed-income returns.
  • Retirement accounts and trusts.
  • Wealth management firms.
AI Confidence: 71% Updated: Mar 16, 2026

F-Score 6/9Financial Health

BlackRock Municipal Income Fund, Inc.'s Piotroski F-Score is 6/9, a 9-point checklist of profitability, leverage and efficiency — a middling fundamental profile. Its Altman Z-Score of 0.29 places it in the distress zone, a signal of elevated financial risk.

ROE 0%Key Financial Metrics

Return on equity for BlackRock Municipal Income Fund, Inc. stands at 0.3%, a gauge of how efficiently it converts shareholder capital into profit. Return on assets is 0.2%, showing how much profit it generates from its asset base. MUI trades at a trailing price-to-earnings ratio of 336.16, above the Financial Services sector average of ~18x. Its free cash flow yield is 15.2%, a gauge of the cash the business throws off relative to its market value. A current ratio of 0.03 means current liabilities exceed short-term assets, a liquidity point worth watching. Its earnings yield is 0.3%, the inverse of the P/E and a quick read on earnings relative to price.

BlackRock Municipal Income Fund, Inc. (MUI) Valuation Context

Valued at $870.38M, MUI is classified as a small-cap stock. Relative to its peer group, MUI's quantitative score of 45/100 is roughly in line with the peer average of 49/100.

MUI Financials

Bull Case vs Bear Case

Bull Case

  • Strong brand recognition and reputation of BlackRock.
  • Experienced management team with expertise in fixed income.
  • Diversified portfolio of investment-grade municipal bonds.
  • Access to BlackRock's extensive research and resources.

Bear Case

  • High P/E ratio suggests potential overvaluation.
  • Sensitivity to interest rate fluctuations.
  • Dependence on the creditworthiness of municipal issuers.
  • Limited growth potential compared to other asset classes.

AI-generated arguments based on insider flow, news sentiment and technicals — not financial advice · July 2026

MUI Latest News

No recent news available for MUI.

MUI Analyst Consensus

Consensus Rating

Aggregated Buy/Hold/Sell recommendations from Benzinga, Yahoo Finance, and Finnhub for MUI.

Price Targets

Wall Street price target analysis for MUI.

MUI MoonshotScore

45/100

What does this score mean?

The MoonshotScore rates MUI's growth potential on a scale of 0-100 across multiple factors including innovation, market disruption, financial health, and momentum.

Leadership: Charles Choon Sik Park

Unknown

Information on Charles Choon Sik Park's background is not available in the provided data. Further research would be needed to provide a comprehensive overview of his career history, education, and previous roles.

Track Record: Information on Charles Choon Sik Park's track record is not available in the provided data. Further research would be needed to provide a comprehensive overview of his key achievements, strategic decisions, and company milestones under his leadership.

What Investors Ask About BlackRock Municipal Income Fund, Inc. (MUI) — Financial Services

What does BlackRock Municipal Income Fund, Inc. do?

BlackRock Municipal Income Fund, Inc. (MUI) is a closed-end fund that invests primarily in investment-grade municipal bonds exempt from federal income taxes. Managed by BlackRock Advisors, LLC, the fund aims to provide shareholders with a steady stream of income by strategically allocating its assets to municipal bonds with durations between three and ten years. The fund's focus on tax-exempt income makes it a noteworthy option for investors seeking to minimize their federal tax liabilities while maintaining a relatively stable income stream.

What are the main risks for MUI?

The main risks for BlackRock Municipal Income Fund, Inc. (MUI) include rising interest rates, which could negatively impact bond prices and fund performance. Credit quality deterioration of municipal bonds could also lead to losses. Changes in tax laws could reduce the attractiveness of tax-exempt investments. Additionally, competition from other asset managers could put pressure on fees and performance. These risks are inherent in the fixed-income market and require careful monitoring and risk management.

What are the key factors to evaluate for MUI?

BlackRock Municipal Income Fund, Inc. (MUI) holds an AI score of 45/100 (low). Not financial advice.

How frequently does MUI data refresh on this page?

MUI prices update in real time during U.S. market hours. Fundamentals refresh after quarterly filings; analyst ratings and AI insights update daily; news is aggregated continuously.

What has driven MUI's recent stock price performance?

BlackRock Municipal Income Fund, Inc. (MUI) moves on earnings results, analyst revisions, sector rotation, and market sentiment. Notable catalyst: Strong brand recognition and reputation of BlackRock. See the News tab for the latest drivers. Past performance does not predict future results.

Should investors consider MUI overvalued or undervalued right now?

Valuing BlackRock Municipal Income Fund, Inc. (MUI) requires multiple metrics. Compare P/E, P/S, and EV/EBITDA against sector peers for a full view.

What research should beginners do before buying MUI?

Before investing in BlackRock Municipal Income Fund, Inc. (MUI), research these four areas: (1) the company's revenue model and competitive position (see Company Overview), (2) financial health through revenue growth, margins, and cash flow (see MoonshotScore), (3) what Wall Street analysts recommend and their price targets (see Analyst tab), and (4) specific risk factors that could impact the stock (see Risk Factors section).

Why might investors consider adding MUI to a portfolio?

Key strength of BlackRock Municipal Income Fund, Inc. (MUI): Strong brand recognition and reputation of BlackRock. Weigh rewards against risks and diversify. Not financial advice.

Disclaimer: This content is for informational purposes only and does not constitute investment advice. Always do your own research and consult a financial advisor.

Official Resources

Price as of Analysis updated AI Score refreshed daily
Data Sources & Methodology
Market data powered by Financial Modeling Prep & Yahoo Finance. AI analysis by Stock Expert AI proprietary algorithms. Technical indicators via industry-standard calculations. Last updated: .
Data Provenance
Sources: Financial Modeling Prep (FMP) — Primary · Yahoo Finance — Fallback · Alpaca — Tertiary
Last fetched:
Cache TTL: Quote 5min · Profile 7d · Financials 7d · Insider 48h
How we use AI: Numbers are pulled directly from FMP & Yahoo Finance — our AI writes the analysis, it never edits the figures.
Data provided as-is for educational purposes. Not financial advice. Methodology

Data provided for informational purposes only.

Analysis Notes
  • AI analysis pending for MUI.
  • Information on Charles Choon Sik Park's background and track record is not available in the provided data.
Data Sources

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