MUB
·ARCA
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Key Stats
Assets Under Management
41.36BUSD
Fund Flows (1Y)
883.74MUSD
Dividend Yield
3.41%
Discount/Premium to NAV
0.08%
Shares Outstanding
387.90M
Expense Ratio
0.05%
About iShares National Muni Bond ETF
Issuer
BlackRock Fund Advisors
Brand
iShares
Inception Date
Sep 7, 2007
Structure
Open-Ended Fund
Index Tracked
ICE AMT-Free US National Municipal Index
Management Style
Passive
Dividend Treatment
Distributes
Distribution Tax Treatment
Ordinary income
Income Tax Type
Capital Gains
Max ST Capital Gains Rate
39.60%
Max LT Capital Gains Rate
20.00%
Primary Advisor
BlackRock Fund Advisors
Distributor
BlackRock Investments LLC
Highly popular MUB offers a broad and representative basket of muni bonds in an efficient package. The fund's portfolio aligns reasonably well with our benchmark, with a bias toward general obligation bonds. Most of the security issuers are state and local governments or agencies such that interest received is exempt from US federal taxes. The index considers bonds of investment-grade rating only but with final maturity of greater than or equal to one month. The bonds are market-value weighted in the portfolio and rebalanced after the close on the last business day of each month. Prior to March 1, 2016, the fund name was iShares National AMT-Free Muni Bond ETF, and prior to September 15, 2021, the underlying index for MUB was the S&P National AMT-Free Municipal Bond Index.
Classification
Asset Class
Fixed Income
Category
Government, Local Authority/Municipal
Focus
Investment Grade
Niche
Broad Maturities
Strategy
Vanilla
Geography
U.S.
Weighting Scheme
Market Value
Selection Criteria
AMT-free
Returns
1-Month | 3-Month | YTD | 1-Year | 3-Year | 5-Year | |
|---|---|---|---|---|---|---|
Price Performance | -0.56% | +0.20% | +0.03% | +0.64% | +0.75% | -8.79% |
NAV Total Return | +0.12% | +1.12% | +3.33% | +3.86% | +10.11% | +3.58% |
Ratings
No data is currently available
Ainvest’s AI-powered ETF Scoring Algorithm, built to help retail investors make smarter, data-driven decisions. Leveraging deep learning, reinforcement learning, and large language models, the algorithm scores ETFs across five key dimensions: Fund Flow, Momentum, Safety, Fundamentals, and Performance. Each factor is weighted by its correlation to future returns, resulting in a single, actionable score. Backtested over five years with consistently strong predictive accuracy. Ainvest brings institutional-grade artificial intelligence to everyday investors—transforming complexity into clarity with every score.
Holdings Analysis
Sector
No data is currently available
Asset
No data is currently available
Region
No data is currently available
Investment Style
No data is currently available
Top 10 Holdings
Symbol
Ratio
UNIVERSITY TEX UNIV REVS
0.22%
ATLANTA GA WTR & WASTE WTR REV
0.20%
NEW YORK ST TWY AUTH ST PERS I
0.17%
NORTHWEST TEX INDPT SCH DIST
0.17%
HOUSTON TEX HIGHER ED FIN CORP
0.15%
NEW JERSEY ST
0.14%
WASHINGTON ST
0.14%
CALIFORNIA ST
0.14%
NEW YORK ST DORM AUTH ST PERS
0.14%
CHICAGO ILL TRAN AUTH SALES TA
0.13%
Top 10 Weight 1.6%
5000 Total Holdings
Dividends
Dividend Payout History
Declaration Date | Record Date | Payment Date | Amount |
|---|---|---|---|
| 2025-12-01 | 2025-12-01 | 2025-12-05 | 0.288 |
| 2025-11-03 | 2025-11-03 | 2025-11-06 | 0.275 |
| 2025-10-01 | 2025-10-01 | 2025-10-06 | 0.287 |
| 2025-09-02 | 2025-09-02 | 2025-09-08 | 0.280 |
| 2025-08-01 | 2025-08-01 | 2025-08-06 | 0.278 |
| 2025-07-01 | 2025-07-01 | 2025-07-07 | 0.281 |
| 2025-06-02 | 2025-06-02 | 2025-06-05 | 0.275 |
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Premium/Discount Chart
Premium/Discount to NAV
Price
1M
Assets Under Management
Assets Under Management
1M
Fund Flows
Inflows
Outflows
1M
