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ISIN
US09252Y6068
CUSIP
09252Y606
Issuer
BlackRock
Inception Date
Oct 24, 1988
Min. Investment
$2,000,000
Distribution Policy
Distributing
Asset Class
Bond

Share Price Chart


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Performance

MACMX Performance Chart

BlackRock California Municipal Opportunities Fund (MACMX) is up 1.8% since the beginning of the year. MACMX is currently trading at $12 per share. Investors who bought $1,000 worth of MACMX shares 5 years ago would now be looking at an investment worth $1,070.


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S&P 500 Index

Returns By Period

BlackRock California Municipal Opportunities Fund (MACMX) has returned 1.79% so far this year and 6.37% over the past 12 months. Over the last ten years, MACMX has returned 2.49% per year, falling short of the S&P 500 Index benchmark, which averaged 13.66% annually.


BlackRock California Municipal Opportunities Fund

1D
0.25%
1M
1.00%
YTD
1.79%
6M
1.85%
1Y
6.37%
3Y*
4.51%
5Y*
1.37%
10Y*
2.49%

Benchmark (S&P 500 Index)

1D
-0.74%
1M
4.90%
YTD
10.35%
6M
10.28%
1Y
26.52%
3Y*
20.83%
5Y*
12.30%
10Y*
13.66%
*Multi-year figures are annualized to reflect compound growth (CAGR)

MACMX Monthly Returns History

Based on dividend-adjusted daily data since Oct 17, 1988, MACMX's average daily return is +0.02%, while the average monthly return is +0.40%. At this rate, an investment would double in approximately 14.5 years.

Historically, 67% of months were positive and 33% were negative. The best month was Nov 2023 with a return of +5.6%, while the worst month was Mar 2020 at -7.0%. The longest winning streak lasted 13 consecutive months, and the longest losing streak was 4 months.

On a daily basis, MACMX closed higher 41% of trading days. The best single day was Oct 22, 2008 with a return of +3.6%, while the worst single day was Mar 19, 2020 at -2.9%.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
20260.57%0.91%-1.68%1.17%0.57%0.25%1.79%
20250.67%1.17%-0.64%-0.89%-0.12%0.40%-0.88%1.35%2.62%0.44%0.61%-0.35%4.41%
20240.01%0.53%0.28%-0.81%0.37%1.54%0.77%0.53%0.45%-0.79%1.66%-0.65%3.91%
20232.54%-1.67%0.83%-0.10%-0.35%0.07%0.50%-0.85%-1.97%-1.23%5.63%1.70%4.96%
2022-2.37%-0.23%-3.13%-2.88%1.23%-2.82%2.99%-1.94%-3.64%-0.72%4.34%0.41%-8.76%
20211.57%-1.01%1.41%0.78%0.61%0.46%0.45%-0.31%-0.54%-0.08%0.84%0.45%4.70%

Benchmark Metrics

BlackRock California Municipal Opportunities Fund has an annualized alpha of 4.76%, beta of 0.00, and R2 of 0.00 versus S&P 500 Index. Calculated based on daily prices since October 18, 1988.

  • This fund participates in less of S&P 500 Index's moves in both directions, but captures a larger share of gains (16.50%) than losses (1.10%) - typical of diversified or defensive assets.
  • Beta of 0.00 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
4.76%
Beta
0.00
0.00
Upside Capture
16.50%
Downside Capture
1.10%

Expense Ratio

MACMX has an expense ratio of 0.44%, placing it in the medium range.


Return for Risk

Risk / Return Rank

MACMX ranks 56 for risk / return — on par with similar mutual funds. You're getting a typical balance of risk and reward. Not a standout, but not a red flag either — a reasonable choice if other factors align with your goals.


MACMX Risk / Return Rank: 5656
Overall Rank
MACMX Sharpe Ratio Rank: 5555
Sharpe Ratio Rank
MACMX Sortino Ratio Rank: 6868
Sortino Ratio Rank
MACMX Omega Ratio Rank: 7777
Omega Ratio Rank
MACMX Calmar Ratio Rank: 4444
Calmar Ratio Rank
MACMX Martin Ratio Rank: 3939
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 California Municipal Opportunities Fund (MACMX) and compare them to S&P 500 Index.


MACMXBenchmarkDifference
Sharpe ratioReturn per unit of total volatility

-0.05

Sortino ratioReturn per unit of downside risk

+0.40

Omega ratioGain probability vs. loss probability

1.51

1.41

+0.10

Calmar ratioReturn relative to maximum drawdown

2.53

2.93

-0.40

Martin ratioReturn relative to average drawdown

8.37

13.52

-5.15

Dividends

Dividend History

BlackRock California Municipal Opportunities Fund provided a 3.68% dividend yield over the last twelve months, with an annual payout of $0.44 per share. The fund has been increasing its distributions for 3 consecutive years.


2.00%2.50%3.00%3.50%4.00%4.50%$0.00$0.10$0.20$0.30$0.40$0.50$0.6020152016201720182019202020212022202320242025
Dividends
Dividend Yield
PeriodTTM20252024202320222021202020192018201720162015
Dividend$0.44$0.57$0.47$0.32$0.22$0.24$0.26$0.35$0.57$0.41$0.35$0.43

Dividend yield

3.68%4.77%3.93%2.68%1.90%1.80%2.02%2.74%4.60%3.19%2.82%3.43%

Monthly Dividends

The table displays the monthly dividend distributions for BlackRock California Municipal Opportunities Fund. 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$0.04$0.00$0.19
2025$0.07$0.07$0.07$0.07$0.04$0.04$0.04$0.04$0.04$0.03$0.03$0.04$0.57
2024$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.07$0.07$0.47
2023$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.00$0.03$0.03$0.32
2022$0.02$0.02$0.02$0.03$0.03$0.00$0.00$0.03$0.00$0.03$0.03$0.03$0.22
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 California Municipal Opportunities Fund. 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 California Municipal Opportunities Fund was 13.65%, occurring on Oct 26, 2022. Recovery took 526 trading sessions.


Related event

Drawdown

Fall

Recovery

Underwater

Bear market2022
-13.65%Oct 2022
9mo 25d2y 1mo
2y 11moJan 2022 - Nov 2024
COVID crash2020
-13.37%Mar 2020
24d9mo 19d
10mo 13dFeb 2020 - Jan 2021
Financial crisis2007–2009
-12.86%Oct 2008
1mo 4d3mo
4mo 4dSep 2008 - Jan 2009
1994 correction1994
-12.60%Nov 1994
9mo 20d5mo 7d
1y 2moFeb 1994 - Apr 1995
2013 correction2013
-12.35%Sep 2013
9mo 5d10mo 29d
1y 7moDec 2012 - Jul 2014

Drawdown Indicators


MACMXBenchmarkDifference

Max Drawdown

Largest peak-to-trough decline

-13.65%

-56.78%

+43.13%

Max Drawdown (1Y)

Largest decline over 1 year

-2.50%

-9.10%

+6.60%

Max Drawdown (3Y)

Largest decline over 3 years

-5.24%

-18.90%

+13.66%

Max Drawdown (5Y)

Largest decline over 5 years

-13.65%

-25.43%

+11.78%

Max Drawdown (10Y)

Largest decline over 10 years

-13.65%

-33.92%

+20.27%

Current Drawdown

Current decline from peak

0.00%

-0.74%

+0.74%

Average Drawdown

Average peak-to-trough decline

-1.94%

-10.72%

+8.78%

Ulcer Index

Depth and duration of drawdowns from previous peaks

0.75%

1.97%

-1.22%

Volatility

Volatility Chart

The chart below shows the rolling one-month volatility.


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Portfolio Analyzer

Build a portfolio with MACMX

Add BlackRock California Municipal Opportunities Fund to a portfolio and analyze allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.

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