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iShares National Muni Bond ETF (MUB)



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Upturn Advisory Summary
07/29/2025: MUB (1-star) has a low Upturn Star Rating. Not recommended to BUY.
Analysis of Past Performance
Type ETF | Historic Profit -2.64% | Avg. Invested days 33 | Today’s Advisory WEAK BUY |
Upturn Star Rating ![]() ![]() | Upturn Advisory Performance ![]() | ETF Returns Performance ![]() |
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Key Highlights
Volume (30-day avg) - | Beta 0.9 | 52 Weeks Range 99.75 - 106.91 | Updated Date 06/30/2025 |
52 Weeks Range 99.75 - 106.91 | Updated Date 06/30/2025 |
Upturn AI SWOT
iShares National Muni Bond ETF
ETF Overview
Overview
The iShares National Muni Bond ETF (MUB) seeks to track the investment results of an index composed of investment-grade U.S. municipal bonds. Its primary focus is on the municipal bond sector, offering exposure to a broad range of tax-exempt debt. Asset allocation is predominantly in municipal bonds, and the investment strategy involves replicating the underlying index.
Reputation and Reliability
BlackRock, the issuer of iShares ETFs, is a well-established and reputable asset manager with a long track record in the ETF market.
Management Expertise
BlackRock has a large and experienced team of investment professionals managing its ETF lineup, possessing significant expertise in fixed income and municipal bond markets.
Investment Objective
Goal
The primary investment goal of MUB is to provide investment results that correspond to the price and yield performance of the S&P National AMT-Free Municipal Bond Index.
Investment Approach and Strategy
Strategy: MUB aims to track the S&P National AMT-Free Municipal Bond Index.
Composition The ETF holds a basket of U.S. municipal bonds that are exempt from federal income taxes.
Market Position
Market Share: MUB is one of the largest and most liquid municipal bond ETFs, holding a significant portion of the market share in its sector.
Total Net Assets (AUM): 14650000000
Competitors
Key Competitors
- Vanguard Tax-Exempt Bond ETF (VTEB)
- Invesco National AMT-Free Municipal Bond ETF (PZA)
- SPDR Nuveen Bloomberg Short Term Municipal Bond ETF (SHM)
Competitive Landscape
The municipal bond ETF market is dominated by a few large players, with MUB and VTEB holding the majority of assets. MUB benefits from its first-mover advantage and high liquidity. VTEB competes primarily on price, often offering a slightly lower expense ratio. PZA offers a slightly different index weighting approach, potentially appealing to investors seeking diversification.
Financial Performance
Historical Performance: Historical performance data should be sourced from financial data providers. Specific numbers would be placed here and structured in an array format for easy parsing.
Benchmark Comparison: MUB's performance closely tracks the S&P National AMT-Free Municipal Bond Index. Deviations can occur due to tracking error and fund expenses.
Expense Ratio: 0.05
Liquidity
Average Trading Volume
MUB exhibits high liquidity with a substantial average daily trading volume, making it easy for investors to buy and sell shares.
Bid-Ask Spread
MUB generally has a narrow bid-ask spread, reflecting its high liquidity and lower transaction costs for investors.
Market Dynamics
Market Environment Factors
MUB's performance is influenced by interest rate movements, credit spreads, and the overall health of the municipal bond market. Economic growth, inflation expectations, and tax policy changes can all impact municipal bond yields.
Growth Trajectory
The growth of MUB is tied to investor demand for tax-exempt income and the growth of the municipal bond market. Minor changes in holdings are typical as bonds mature and new issues are added to the index.
Moat and Competitive Advantages
Competitive Edge
MUB benefits from BlackRock's strong brand recognition and its first-mover advantage in the national municipal bond ETF space. Its large AUM contributes to economies of scale, resulting in a low expense ratio and high liquidity. The ETFu2019s diversified portfolio of investment-grade municipal bonds provides broad exposure to the sector, appealing to investors seeking tax-advantaged income. These factors combine to create a strong competitive edge.
Risk Analysis
Volatility
MUB's volatility is generally lower than equity ETFs, as municipal bonds are typically less volatile than stocks. However, interest rate risk is a key consideration.
Market Risk
MUB is subject to interest rate risk, credit risk (although the ETF focuses on investment-grade bonds), and inflation risk. Changes in tax laws could also impact the attractiveness of municipal bonds.
Investor Profile
Ideal Investor Profile
The ideal investor for MUB is a long-term investor seeking tax-exempt income. This includes individuals in higher tax brackets, retirees, and those saving for future expenses in a tax-advantaged manner.
Market Risk
MUB is suitable for long-term investors and passive index followers seeking a stable, tax-efficient income stream.
Summary
The iShares National Muni Bond ETF (MUB) offers investors a convenient and cost-effective way to gain exposure to a diversified portfolio of investment-grade municipal bonds. Its low expense ratio, high liquidity, and tax-exempt income make it an attractive option for income-seeking investors, particularly those in higher tax brackets. While MUB is subject to interest rate and credit risk, its generally lower volatility compared to equities makes it a suitable component of a well-diversified portfolio. BlackRock's strong reputation further enhances MUB's appeal.
Peer Comparison
Sources and Disclaimers
Data Sources:
- iShares Website
- Morningstar
- Bloomberg
- Company Filings
Disclaimers:
This analysis is for informational purposes only and should not be considered investment advice. Past performance is not indicative of future results. Investment decisions should be based on your individual circumstances and after consulting with a qualified financial advisor.
AI Summarization is directionally correct and might not be accurate.
Summarized information shown could be a few years old and not current.
Fundamental Rating based on AI could be based on old data.
AI-generated summaries may have inaccuracies (hallucinations). Please verify the information before taking action.
About iShares National Muni Bond ETF
Exchange NYSE ARCA | Headquaters - | ||
IPO Launch date - | CEO - | ||
Sector - | Industry - | Full time employees - | Website |
Full time employees - | Website |
The underlying index includes municipal bonds, the interest of which is exempt from Federal income taxes and not subject to alternative minimum tax. The fund will invest at least 80% of its assets in the component securities of the underlying index and it will invest at least 90% of its assets in fixed income securities of the types included in the underlying index that BFA believes will help the fund track the underlying index.

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