iShares Long-Term National Muni Bond ETF

LMUB
ETF Ticker

-5.62%

-4.08%

NYSE Arca Exchange

Fixed Income

United States

Municipal

The iShares Long-Term National Muni Bond ETF, LMUB_US, is listed on the NYSE Arca Exchange and tracks the MNLG index. The fund provides exposure to United States, Municipal Fixed Income and has assets under management of $1,600.0m (as of Aug 31, 2026). The ETF trades in USD and was listed on the exchange on Mar 17, 2025. It has a net expense ratio of 9bps. (All data in USD as of Oct 9, 2026 unless stated.)

The underlying ICE AMT-Free US Long National Municipal Index provides market value-weighted exposure to long-maturity, investment-grade U.S. municipal bonds with remaining maturities of at least twelve years, issued by U.S. states and their political subdivisions. Bonds are USD-denominated, exempt from U.S. federal income tax and not subject to alternative minimum tax, and must be investment grade, selected within the ICE AMT-Free US Municipal Index series. Within this series, qualifying securities have fixed coupons, at least one month to final maturity, and meet minimum size thresholds including 15 million USD current par and 100 million USD original deal size for the national segment, promoting liquidity and capacity. The series also excludes specified sectors (such as tobacco, certain housing, and student-loan financings), variable-rate structures, private placements, and defaulted issues. Constituents are market value weighted with issuer-concentration controls that cap large issuers and large-issuer groups, redistributing excess weight across smaller issuers, and the index is rebalanced monthly.

ETF Details

Key Facts

Issuer:
iShares
AUM:
$1,600.0m (as of Aug 31, 2026)
Net Expense Ratio:
9 bps
Inception Date:
Mar 17, 2025
Index:
N/A
Dividend Frequency:
Monthly

Trading

Ticker:
LMUB
Exchange:
NYSE Arca Exchange
ISIN:
US46438G4486
Trading Currency:
USD
Domicile:
United States

Classification & Risk

Asset Class:
Fixed Income
Asset Region:
United States
Theme:
Municipal
Economic Development:
Developed Markets
1 Year Volatility:
4.93%
3 Year Volatility:
N/A
5 Year Volatility:
N/A

Performance

TTM Dividend Yield:
3.51% (verify with issuer)
1 Month Performance:
-3.83%
3 Month Performance:
-8.03%
6 Month Performance:
-6.96%
1 Year Performance:
-4.08%
3 Year Performance:
N/A
5 Year Performance:
N/A
Investment Proposition

iShares Long-Term National Muni Bond ETF (LMUB) offers broadly diversified, investment-grade exposure to long-maturity municipal bonds designed to deliver federally tax-advantaged income and meaningful duration. The portfolio emphasizes general obligation and revenue issuers across states and sectors, seeking high credit quality while accepting elevated interest-rate sensitivity inherent in the long end of the muni curve. For investors, this creates a tool to extend duration within a tax-aware fixed income sleeve, complement taxable core bonds and Treasuries, and pursue after-tax yield with potential ballast during periods of slowing growth or disinflation. Performance tends to benefit when rates fall, credit conditions remain orderly, and demand for tax-exempt income is firm; it can be challenged by rapid rate increases, curve bear-steepening, or stress in local finances. Suitable uses include income for high-tax-bracket households, a duration-extension sleeve in liability-aware portfolios, and a diversification complement to corporate credit. Typical investors include wealth managers building tax-efficient income ladders and multi-asset allocators balancing rate risk against credit beta. A key risk to monitor is duration-driven volatility, which can amplify price moves during abrupt rate shifts.

ETF Analytics

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