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ISIN
US09253E6095
CUSIP
09253E609
Issuer
BlackRock
Inception Date
Oct 30, 1988
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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S&P 500 Index

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%
*Multi-year figures are annualized to reflect compound growth (CAGR)

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%.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
20260.54%1.50%-1.93%1.23%0.52%0.48%2.34%
20250.80%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%
20232.93%-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%
20211.82%-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
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.


MAMTX Risk / Return Rank: 6666
Overall Rank
MAMTX Sharpe Ratio Rank: 7373
Sharpe Ratio Rank
MAMTX Sortino Ratio Rank: 8181
Sortino Ratio Rank
MAMTX Omega Ratio Rank: 8585
Omega Ratio Rank
MAMTX Calmar Ratio Rank: 4848
Calmar Ratio Rank
MAMTX Martin Ratio Rank: 4242
Martin Ratio Rank
The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

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.


MAMTXBenchmarkDifference
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.


1.50%2.00%2.50%3.00%3.50%4.00%4.50%5.00%$0.00$0.10$0.20$0.30$0.40$0.5020152016201720182019202020212022202320242025
Dividends
Dividend Yield
PeriodTTM20252024202320222021202020192018201720162015
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.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
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 25d3y 2mo
4y 4dJan 2022 - Jan 2026
COVID crash2020
-16.76%Mar 2020
24d10mo 11d
11mo 5dFeb 2020 - Jan 2021
Financial crisis2007–2009
-8.83%Dec 2008
10mo 27d4mo 27d
1y 3moJan 2008 - May 2009
2013 pullback2013
-8.14%Sep 2013
4mo 2d7mo 22d
11mo 24dMay 2013 - Apr 2014
1994 pullback1994
-7.49%Nov 1994
9mo 20d5mo 7d
1y 2moFeb 1994 - Apr 1995

Drawdown Indicators


MAMTXBenchmarkDifference

Max Drawdown

Largest 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 Drawdown

Current decline from peak

0.00%

-1.80%

+1.80%

Average Drawdown

Average peak-to-trough decline

-2.05%

-10.71%

+8.66%

Ulcer Index

Depth 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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Portfolio Analyzer

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