MUB
$103.87+0.05%
as of close, Oct 27, 2026
☾ AH $103.87 +0.05%
iShares National Muni Bond ETFETF · Bonds
iShares National Muni Bond ETF monthly returns
iShares National Muni Bond ETF has averaged 0.30% per month, positive in 61% of months. Month-by-month returns for iShares National Muni Bond ETF (MUB) below, through October 27, 2026 — the table lists the most recent months; the bar chart plots the last 5 years.
Average month
+0.3%
202 months
Best month
+5.7%
Nov 2023
Worst month
-4.1%
Nov 2016
Positive months
61%
of all months
iShares National Muni Bond ETF monthly returns#
| Month | Path | Total return |
|---|---|---|
| Oct 2026 | +3.0% | |
| Sep 2026 | -3.5% | |
| Aug 2026 | -0.2% | |
| Jul 2026 | -1.6% | |
| Jun 2026 | +0.7% | |
| May 2026 | +0.3% | |
| Apr 2026 | +1.2% | |
| Mar 2026 | -2.3% | |
| Feb 2026 | +1.3% | |
| Jan 2026 | +0.7% | |
| Dec 2025 | +0.2% | |
| Nov 2025 | +0.2% | |
| Oct 2025 | +1.2% | |
| Sep 2025 | +2.2% | |
| Aug 2025 | +0.8% | |
| Jul 2025 | -0.3% | |
| Jun 2025 | +0.9% | |
| May 2025 | -0.6% | |
| Apr 2025 | -0.4% | |
| Mar 2025 | -1.8% | |
| Feb 2025 | +1.3% | |
| Jan 2025 | -0.0% | |
| Dec 2024 | -1.3% | |
| Nov 2024 | +1.7% | |
| Oct 2024 | -1.2% | |
| Sep 2024 | +1.1% | |
| Aug 2024 | +0.2% | |
| Jul 2024 | +1.3% | |
| Jun 2024 | +1.0% | |
| May 2024 | -0.3% | |
| Apr 2024 | -0.9% | |
| Mar 2024 | -0.1% | |
| Feb 2024 | -0.2% | |
| Jan 2024 | +0.0% | |
| Dec 2023 | +2.3% | |
| Nov 2023 | +5.7% | |
| Oct 2023 | -1.2% | |
| Sep 2023 | -2.3% | |
| Aug 2023 | -0.6% | |
| Jul 2023 | +0.0% | |
| Jun 2023 | +0.8% | |
| May 2023 | -0.4% | |
| Apr 2023 | +0.0% | |
| Mar 2023 | +2.6% | |
| Feb 2023 | -2.1% | |
| Jan 2023 | +2.5% | |
| Dec 2022 | +0.1% | |
| Nov 2022 | +5.1% | |
| Oct 2022 | -0.7% | |
| Sep 2022 | -2.6% | |
| Aug 2022 | -2.3% | |
| Jul 2022 | +2.4% | |
| Jun 2022 | -1.3% | |
| May 2022 | +1.6% | |
| Apr 2022 | -2.4% | |
| Mar 2022 | -2.4% | |
| Feb 2022 | -0.4% | |
| Jan 2022 | -2.4% | |
| Dec 2021 | +0.3% | |
| Nov 2021 | +0.9% | |
| Oct 2021 | +0.1% | |
| Sep 2021 | -0.6% | |
| Aug 2021 | -0.0% | |
| Jul 2021 | +0.6% | |
| Jun 2021 | +0.5% | |
| May 2021 | +0.5% | |
| Apr 2021 | +0.9% | |
| Mar 2021 | +0.7% | |
| Feb 2021 | -1.4% | |
| Jan 2021 | +0.3% | |
| Dec 2020 | +1.0% | |
| Nov 2020 | +1.8% | |
| Oct 2020 | -0.3% | |
| Sep 2020 | +0.3% | |
| Aug 2020 | -0.4% | |
| Jul 2020 | +1.6% | |
| Jun 2020 | +0.5% | |
| May 2020 | +4.0% | |
| Apr 2020 | -1.2% | |
| Mar 2020 | -2.8% | |
| Feb 2020 | +1.2% | |
| Jan 2020 | +1.7% | |
| Dec 2019 | +0.7% | |
| Nov 2019 | +0.3% | |
| Oct 2019 | +0.5% | |
| Sep 2019 | -0.6% | |
| Aug 2019 | +1.7% | |
| Jul 2019 | +0.9% | |
| Jun 2019 | +0.6% | |
| May 2019 | +1.6% | |
| Apr 2019 | +0.7% | |
| Mar 2019 | +1.7% | |
| Feb 2019 | +0.8% | |
| Jan 2019 | +0.4% | |
| Dec 2018 | +1.8% | |
| Nov 2018 | +1.3% | |
| Oct 2018 | -0.3% | |
| Sep 2018 | -0.5% | |
| Aug 2018 | +0.4% | |
| Jul 2018 | +0.4% | |
| Jun 2018 | +0.3% | |
| May 2018 | +1.4% | |
| Apr 2018 | -0.5% | |
| Mar 2018 | +0.7% | |
| Feb 2018 | -0.4% | |
| Jan 2018 | -1.1% | |
| Dec 2017 | +1.4% | |
| Nov 2017 | -0.3% | |
| Oct 2017 | +0.3% | |
| Sep 2017 | -0.4% | |
| Aug 2017 | +0.8% | |
| Jul 2017 | +0.9% | |
| Jun 2017 | -0.4% | |
| May 2017 | +1.5% | |
| Apr 2017 | +0.5% | |
| Mar 2017 | +0.3% | |
| Feb 2017 | +0.5% | |
| Jan 2017 | +0.3% | |
| Dec 2016 | +1.7% | |
| Nov 2016 | -4.1% |
Monthly total return (since Nov 2021)#
-4%-2%0%2%4%
Nov 2021+0.87%
Dec 2021+0.28%
Jan 2022-2.4%2022
Feb 2022-0.39%
Mar 2022-2.4%
Apr 2022-2.4%
May 2022+1.6%
Jun 2022-1.3%
Jul 2022+2.4%
Aug 2022-2.3%
Sep 2022-2.6%
Oct 2022-0.65%
Nov 2022+5.1%
Dec 2022+0.14%
Jan 2023+2.5%2023
Feb 2023-2.1%
Mar 2023+2.6%
Apr 2023+0.01%
May 2023-0.42%
Jun 2023+0.78%
Jul 2023+0.03%
Aug 2023-0.55%
Sep 2023-2.3%
Oct 2023-1.2%
Nov 2023+5.7%
Dec 2023+2.3%
Jan 2024+0.05%2024
Feb 2024-0.21%
Mar 2024-0.09%
Apr 2024-0.94%
May 2024-0.31%
Jun 2024+1.0%
Jul 2024+1.3%
Aug 2024+0.24%
Sep 2024+1.1%
Oct 2024-1.2%
Nov 2024+1.7%
Dec 2024-1.3%
Jan 2025-0.01%2025
Feb 2025+1.3%
Mar 2025-1.8%
Apr 2025-0.41%
May 2025-0.57%
Jun 2025+0.87%
Jul 2025-0.32%
Aug 2025+0.84%
Sep 2025+2.2%
Oct 2025+1.2%
Nov 2025+0.21%
Dec 2025+0.24%
Jan 2026+0.69%2026
Feb 2026+1.3%
Mar 2026-2.3%
Apr 2026+1.2%
May 2026+0.31%
Jun 2026+0.68%
Jul 2026-1.6%
Aug 2026-0.24%
Sep 2026-3.5%
Oct 2026+3.0%
iShares National Muni Bond ETF returns by calendar month#
Every month of every year since 2010, one tick per year on a shared scale; the dark bar is the month's average. Total returns, dividends reinvested.
October 2026 so far: +3.02% — 1st of 17 Octobers since 2010 at the last close; the average October returned -0.1%.
| Month | −10%0+10% | Average | Median | Up | Best | Worst |
|---|---|---|---|---|---|---|
| Jan | +0.7% | +0.4% | 76% | +3.5% 2012 | -2.4% 2022 | |
| Feb | +0.2% | +0.5% | 59% | +2.3% 2011 | -2.1% 2023 | |
| Mar | -0.3% | -0.1% | 47% | +2.6% 2023 | -2.8% 2020 | |
| Apr | +0.3% | +0.7% | 65% | +2.8% 2011 | -2.4% 2022 | |
| May | +0.7% | +0.8% | 71% | +4.0% 2020 | -3.1% 2013 | |
| Jun | +0.1% | +0.3% | 53% | +1.6% 2016 | -2.7% 2013 | |
| Jul | +0.7% | +0.6% | 76% | +2.4% 2022 | -1.6% 2026 | |
| Aug | +0.3% | +0.1% | 53% | +3.4% 2011 | -2.3% 2022 | |
| Sep | -0.2% | -0.1% | 35% | +2.8% 2013 | -3.5% 2026 | |
| Oct | -0.1% | -0.1% | 50% | +1.2% 2013 | -1.2% 2023 | |
| Nov | +0.8% | +0.6% | 75% | +5.7% 2023 | -4.1% 2016 | |
| Dec | +0.4% | +0.7% | 75% | +2.5% 2011 | -2.6% 2012 |
Methodology#
Monthly returns are total returns (dividends reinvested), computed from MUB's split- and dividend-adjusted month-end closes. The table shows the most recent 120 months and the bar chart the most recent 60. See the year-by-year returns for the annual view. Past performance does not predict future returns; not investment advice.
FAQ#
- What is iShares National Muni Bond ETF's average monthly return?
- iShares National Muni Bond ETF (MUB) has averaged about 0.30% per month, positive in roughly 61% of months. The best month was Nov 2023 (+5.7%) and the worst was Nov 2016 (-4.1%).
More on iShares National Muni Bond ETF
By month for: S&P 500 · S&P 500 Equal Weight · US Stock Market · Nasdaq-100