- ISIN
- US09253E6095
- CUSIP
- 09253E609
- Issuer
- BlackRock
- Inception Date
- Oct 30, 1988
- Category
- Municipal Bonds
- Min. Investment
- $2,000,000
- Distribution Policy
- Distributing
- Asset Class
- Bond
Share Price Chart
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Performance
MAMTX Performance Chart
Blackrock Strategic Municipal Opportunities Fund Of Blackrock Municipal Series Trust (MAMTX) is up 2.3% since the beginning of the year. MAMTX is currently trading at $10 per share. Investors who bought $1,000 worth of MAMTX shares 5 years ago would now be looking at an investment worth $1,032.
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Returns By Period
Blackrock Strategic Municipal Opportunities Fund Of Blackrock Municipal Series Trust (MAMTX) has returned 2.34% so far this year and 7.31% over the past 12 months. Over the last ten years, MAMTX has returned 2.07% per year, falling short of the S&P 500 Index benchmark, which averaged 13.88% annually.
Blackrock Strategic Municipal Opportunities Fund Of Blackrock Municipal Series Trust
- 1D
- 0.10%
- 1M
- 1.88%
- YTD
- 2.34%
- 6M
- 2.78%
- 1Y
- 7.31%
- 3Y*
- 4.27%
- 5Y*
- 0.63%
- 10Y*
- 2.07%
Benchmark (S&P 500 Index)
- 1D
- -0.37%
- 1M
- -0.01%
- YTD
- 9.16%
- 6M
- 8.64%
- 1Y
- 25.22%
- 3Y*
- 19.78%
- 5Y*
- 11.99%
- 10Y*
- 13.88%
MAMTX Monthly Returns History
Based on dividend-adjusted daily data since Oct 21, 1988, MAMTX's average daily return is +0.02%, while the average monthly return is +0.36%. At this rate, an investment would double in approximately 16.1 years.
Historically, 65% of months were positive and 35% were negative. The best month was Nov 2023 with a return of +6.9%, while the worst month was Mar 2020 at -9.3%. The longest winning streak lasted 11 consecutive months, and the longest losing streak was 5 months.
On a daily basis, MAMTX closed higher 39% of trading days. The best single day was Mar 25, 2020 with a return of +4.4%, while the worst single day was Mar 19, 2020 at -4.3%.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0.54% | 1.50% | -1.93% | 1.23% | 0.52% | 0.48% | 2.34% | ||||||
| 2025 | 0.80% | 1.15% | -1.34% | -0.89% | -0.45% | 0.64% | -1.04% | 1.42% | 3.00% | 0.77% | 0.08% | -0.15% | 3.97% |
| 2024 | -0.02% | 0.56% | 0.38% | -1.11% | 0.33% | 2.61% | 0.68% | 0.39% | 0.49% | -1.66% | 2.53% | -1.26% | 3.90% |
| 2023 | 2.93% | -1.93% | 1.03% | -0.13% | -0.43% | -0.64% | 0.62% | -1.40% | -2.30% | -1.62% | 6.89% | 2.11% | 4.89% |
| 2022 | -2.84% | -0.41% | -3.88% | -3.11% | 1.34% | -3.14% | 2.57% | -2.21% | -4.38% | -1.16% | 4.28% | 0.52% | -12.11% |
| 2021 | 1.82% | -0.83% | 1.46% | 0.93% | 0.84% | 0.42% | 0.66% | -0.59% | -0.59% | -0.17% | 1.10% | 0.67% | 5.84% |
Benchmark Metrics
Blackrock Strategic Municipal Opportunities Fund Of Blackrock Municipal Series Trust has an annualized alpha of 4.29%, beta of 0.01, and R2 of 0.00 versus S&P 500 Index. Calculated based on daily prices since October 21, 1988.
- This fund participates in less of S&P 500 Index's moves in both directions, but captures a larger share of gains (15.02%) than losses (0.90%) - typical of diversified or defensive assets.
- Beta of 0.01 may look defensive, but with R2 of 0.00 this fund is largely uncorrelated with S&P 500 Index - low beta reflects independence, not downside protection. See the Volatility section for a true picture of this fund's risk.
- R2 of 0.00 means this fund moves largely independently of S&P 500 Index - capture ratios reflect limited market correlation rather than active downside protection. Consider using a more representative benchmark.
- Alpha
- 4.29%
- Beta
- 0.01
- R²
- 0.00
- Upside Capture
- 15.02%
- Downside Capture
- 0.90%
Expense Ratio
MAMTX has an expense ratio of 0.55%, placing it in the medium range.
Return for Risk
Risk / Return Rank
MAMTX ranks 66 for risk / return — better than 66% of mutual funds on our site. You're getting solid returns for the risk taken. A good sign, especially for investors who want growth without excessive volatility.
Return / Risk — by metrics
The table below present risk-adjusted performance metrics for Blackrock Strategic Municipal Opportunities Fund Of Blackrock Municipal Series Trust (MAMTX) and compare them to S&P 500 Index.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| MAMTX | Benchmark | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.26 | ||
| Sortino ratioReturn per unit of downside risk | +0.78 | ||
| Omega ratioGain probability vs. loss probability | 1.54 | 1.37 | +0.17 |
| Calmar ratioReturn relative to maximum drawdown | 2.54 | 2.78 | -0.24 |
| Martin ratioReturn relative to average drawdown | 8.53 | 12.44 | -3.90 |
Dividends
Dividend History
Blackrock Strategic Municipal Opportunities Fund Of Blackrock Municipal Series Trust provided a 3.90% dividend yield over the last twelve months, with an annual payout of $0.41 per share. The fund has been increasing its distributions for 3 consecutive years.
| Period | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dividend | $0.41 | $0.52 | $0.44 | $0.29 | $0.20 | $0.24 | $0.28 | $0.33 | $0.54 | $0.34 | $0.44 | $0.33 |
Dividend yield | 3.90% | 5.00% | 4.23% | 2.70% | 1.96% | 2.00% | 2.39% | 2.83% | 4.74% | 2.89% | 3.91% | 2.84% |
Monthly Dividends
The table displays the monthly dividend distributions for Blackrock Strategic Municipal Opportunities Fund Of Blackrock Municipal Series Trust. The dividends shown in the table have been adjusted to account for any splits that may have occurred.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | $0.04 | $0.04 | $0.04 | $0.04 | $0.03 | $0.00 | $0.18 | ||||||
| 2025 | $0.06 | $0.06 | $0.07 | $0.07 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.52 |
| 2024 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.06 | $0.06 | $0.44 |
| 2023 | $0.02 | $0.03 | $0.03 | $0.03 | $0.03 | $0.02 | $0.02 | $0.03 | $0.03 | $0.00 | $0.03 | $0.03 | $0.29 |
| 2022 | $0.02 | $0.02 | $0.02 | $0.03 | $0.02 | $0.00 | $0.00 | $0.02 | $0.00 | $0.02 | $0.02 | $0.02 | $0.20 |
| 2021 | $0.02 | $0.02 | $0.02 | $0.02 | $0.02 | $0.02 | $0.02 | $0.02 | $0.02 | $0.02 | $0.02 | $0.02 | $0.24 |
Drawdowns
Drawdowns Chart
The Drawdowns chart displays portfolio losses from any high point along the way. Drawdowns are calculated considering price movements and all distributions paid, if any.
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Worst Drawdowns
The table below displays the maximum drawdowns of the Blackrock Strategic Municipal Opportunities Fund Of Blackrock Municipal Series Trust. A maximum drawdown is a measure of risk, indicating the largest reduction in portfolio value due to a series of losing trades.
The maximum drawdown for the Blackrock Strategic Municipal Opportunities Fund Of Blackrock Municipal Series Trust was 16.83%, occurring on Oct 26, 2022. Recovery took 801 trading sessions.
Related event | Drawdown | Fall | Recovery | Underwater |
|---|---|---|---|---|
Bear market2022 | -16.83%Oct 2022 | 9mo 25d | 3y 2mo | 4y 4dJan 2022 - Jan 2026 |
COVID crash2020 | -16.76%Mar 2020 | 24d | 10mo 11d | 11mo 5dFeb 2020 - Jan 2021 |
Financial crisis2007–2009 | -8.83%Dec 2008 | 10mo 27d | 4mo 27d | 1y 3moJan 2008 - May 2009 |
2013 pullback2013 | -8.14%Sep 2013 | 4mo 2d | 7mo 22d | 11mo 24dMay 2013 - Apr 2014 |
1994 pullback1994 | -7.49%Nov 1994 | 9mo 20d | 5mo 7d | 1y 2moFeb 1994 - Apr 1995 |
Drawdown Indicators
| MAMTX | Benchmark | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -16.83% | -56.78% | +39.95% |
Max Drawdown (1Y)Largest decline over 1 year | -2.85% | -9.10% | +6.25% |
Max Drawdown (3Y)Largest decline over 3 years | -6.33% | -18.90% | +12.57% |
Max Drawdown (5Y)Largest decline over 5 years | -16.83% | -25.43% | +8.60% |
Max Drawdown (10Y)Largest decline over 10 years | -16.83% | -33.92% | +17.09% |
Current DrawdownCurrent decline from peak | 0.00% | -1.80% | +1.80% |
Average DrawdownAverage peak-to-trough decline | -2.05% | -10.71% | +8.66% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.85% | 2.03% | -1.18% |
Volatility
Volatility Chart
The chart below shows the rolling one-month volatility.
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