iShares National Muni Bond

    MUB ·NYSEARCA
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    The iShares National Muni Bond ETF (the “Fund”) seeks to track the investment results of an index composed of investment-grade U.S. municipal bonds.

    Investment Strategy

    The Fund seeks to track the investment results of the ICE® AMT-Free US National Municipal Index (the “Underlying Index”), which measures the performance of U.S. dollar denominated investment grade tax-exempt debt publicly issued in the U.S. domestic market by U.S. states and their political subdivisions. As of February 28, 2026, there were 26,009 issues in the Underlying Index. As of February 28, 2026, a significant portion of the Underlying Index was represented by municipal bonds. The components of the Underlying Index are likely to change over time.

    Fees & Expenses

    Net Expense Ratio0.05%
    Management Fee0.05%
    Portfolio Turnover11%

    Reported Performance

    Average annual returns as reported in the fund's most recent prospectus. Past performance does not guarantee future results.

    1-Year Return3.69%
    5-Year Avg Annual0.77%
    10-Year Avg Annual2.13%

    Holdings

    6654 positions as of 2026-05-31. Total net assets: $44,950,077,434. Expense ratio: 0.05%. 98.7% of value is in positions not matched to an entity we track (typically bonds, derivatives, or foreign securities). Source: SEC N-PORT-P filing.

    Top 10 holdings

    Name Ticker Weight Value
    BlackRock Liquidity MuniCash Funds: Institutional Shares MCSXX 1.28% $574,311,594
    Board of Regents of the University of Texas System, Series 2025B 0.19% $86,650,750
    New York State Thruway Authority, Series 2022A 0.15% $68,624,875
    San Antonio Water System, Series 2025D 0.14% $63,980,000
    Triborough Bridge & Tunnel Authority, Series 2005B-2 0.14% $60,965,000
    New York City Transitional Finance Authority Future Tax Secured, Series 2019C-4 0.13% $59,400,000
    New York State Dormitory Authority, Series 2019D 0.13% $59,349,953
    Ohio State University (The), Series 2026A 0.13% $57,750,880
    Houston Higher Education Finance Corp., Series 2024 0.13% $57,656,825
    Northwest Independent School District, Series 2025 0.13% $57,406,365

    Country

    CountryWeight
    United States 99.5%
    Total 99.5%

    Region

    RegionWeight
    Americas 99.5%
    Total 99.5%

    Market classification

    MarketWeight
    Developed 99.5%
    Total 99.5%

    Asset class

    ClassWeight
    Debt 95.6%
    Short-term investment 4.0%
    Total 99.5%

    Issuer type

    TypeWeight
    Municipal 98.3%
    Registered fund 1.3%
    Total 99.5%

    Maturity

    MaturityWeight
    Under 1 year 3.1%
    1-3 years 6.8%
    3-5 years 8.1%
    5-10 years 21.2%
    Over 10 years 59.0%
    No expiry 1.3%
    Total 99.5%

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    Held by

    holders ( registered funds via N-PORT, institutional investors via 13F). Showing top by dollar value.

    Holder Type ETF MF Position ($) % of holder Δ % of holder Holder AUM