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iShares National Muni Bond ETF
Trading data
MUB performance and flow charts
Performance
Flows
Historic performance and flows
Data as of March 10, 2026| 1M | 3M | YTD | 1Y | 3Y | 5Y | |
|---|---|---|---|---|---|---|
| Perf. | -0.25% | +1.41% | +1.00% | +4.03% | +7.18% | +1.97% |
| Flows | +$303M | +$1.12B | +$1.02B | +$2.03B | +$10.55B | +$23.33B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | |
|---|---|---|---|---|
| Volatility | +1.67% | +4.11% | +3.55% | +3.33% |
Max drawdown | -0.95% | -4.36% | -5.82% | -11.87% |
Max drawdown duration | 9d | 178d | 244d | 1665d |
Time to recover | N/A | 149d | 42d | 1204d |
Replication quality
Data as of March 11, 2026Create an account to view replication metrics
1 year cumulative return difference | |
|---|---|
| Best | Join for free |
| Worst | Join for free |
| daily return difference | |
|---|---|
| Average | Join for free |
| Worst | Join for free |
Exposure
Data as of January 31, 2026Countries
Sectors
Maturity
Credit rating
Diversification
Total weight of top 15 holdings out of 6,148
Top 15 Holdings
Characteristics
The iShares National Muni Bond ETF is built to track the ICE AMT-Free US National Municipal Index - USD. This ETF provides physical exposure - by owning its shares you earn the return of the securities composing the index (as the ETF holds them directly).
This share class generates a stream of income by distributing dividends.
| Management strategy | Passive |
| Provider | iShares |
| N° of holdings | 6148 |
| Replication method | Direct (Physical) |
| Asset class | Fixed Income |
| Dividend policy | Distributing |
Trailing 12m distribution yield | Join for free |
| Inception date | September 7, 2007 |
| ESG | No |
Latest news about MUB
What type of ETF is MUB?
MUB is a Passive ETF that provides exposure to Fixed Income assets. It is managed by iShares.
What index does MUB track?
MUB tracks the ICE AMT-Free US National Municipal Index - USD, aiming to replicate its performance through full replication.
What does MUB invest in?
This ETF provides exposure to US Investment Grade Municipal Bonds. It is part of the segment: Municipal Bonds.
What is the expense ratio of MUB?
The total expense ratio (TER) of MUB is 0.05%, representing the annual fee charged by the fund manager.
When was MUB launched?
MUB was launched on September 7, 2007, marking its entry into the ETF market.
Who is the issuer of MUB?
MUB is issued by iShares.
What is the AUM of MUB?
As of March 10, 2026, MUB manages $42.75 B, reflecting the total assets held in the fund.
How has MUB performed recently?
As of March 10, 2026, MUB delivered a return of -0.25% over the past month (1M performance), 1.41% over the past three months (3M), and 1% year-to-date (YTD).
What are the recent fund flows for MUB?
As of March 10, 2026, MUB has seen net flows of +$303M in the past month (1M flow) and +$1.02B year-to-date (YTD).
Does MUB pay dividends?
As of March 10, 2026, MUB has a trailing 12-month distribution yield of 3.15%.
How many holdings are in MUB
As of January 31, 2026, MUB holds 6148 securities in its portfolio. This level of diversification can influence the fund’s risk profile and exposure to individual assets.
How diversified is MUB?
As of January 31, 2026, MUB holds 6148 securities, with 3.17% of its assets concentrated in its top 15 holdings.
What are the top holdings of MUB?
As of January 31, 2026, MUB holds a portfolio of 6148 underlyings, with its largest positions including US09248U8412, US91514ANG66 and Atlanta, 5% 1nov2040, USD (2015). These top holdings play a significant role in shaping the fund’s performance and exposure.
What countries or regions does MUB invest in?
As of January 31, 2026, MUB has its largest geographic exposures in USA.
What sectors or themes does MUB focus on?
As of January 31, 2026, MUB is primarily exposed to Municipal.
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