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ISIN
US55273N8065
CUSIP
55273N806
Issuer
MFS
Inception Date
Apr 8, 1985
Min. Investment
$1,000
Distribution Policy
Distributing
Asset Class
Bond

Share Price Chart


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Performance

MFSSX Performance Chart

MFS Massachusetts Municipal Bond Fund (MFSSX) is up 2.2% since the beginning of the year. MFSSX is currently trading at $10 per share. Investors who bought $1,000 worth of MFSSX shares 5 years ago would now be looking at an investment worth $1,025.


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S&P 500 Index

Returns By Period

MFS Massachusetts Municipal Bond Fund (MFSSX) has returned 2.16% so far this year and 7.42% over the past 12 months. Over the last ten years, MFSSX has returned 1.78% per year, falling short of the S&P 500 Index benchmark, which averaged 13.88% annually.


MFS Massachusetts Municipal Bond Fund

1D
0.10%
1M
1.97%
YTD
2.16%
6M
2.54%
1Y
7.42%
3Y*
3.79%
5Y*
0.50%
10Y*
1.78%

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)

MFSSX Monthly Returns History

Based on dividend-adjusted daily data since Apr 9, 1985, MFSSX's average daily return is +0.02%, while the average monthly return is +0.35%. At this rate, an investment would double in approximately 16.5 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 Apr 1987 at -6.5%. The longest winning streak lasted 14 consecutive months, and the longest losing streak was 4 months.

On a daily basis, MFSSX closed higher 38% of trading days. The best single day was Mar 25, 2020 with a return of +3.8%, while the worst single day was Mar 12, 2020 at -3.5%.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
20260.47%1.43%-1.96%1.26%0.48%0.49%2.16%
20250.33%1.16%-1.43%-0.47%-0.63%0.58%-0.73%0.79%2.82%1.27%0.36%-0.02%4.04%
20240.07%-0.05%-0.20%-1.22%0.06%1.69%0.85%0.74%0.93%-1.37%1.77%-1.29%1.94%
20233.17%-2.50%2.06%-0.06%-0.75%0.54%0.25%-1.59%-2.88%-1.87%6.86%2.66%5.59%
2022-2.48%-0.59%-2.92%-3.20%1.16%-2.31%2.65%-2.57%-4.93%-1.11%5.61%-0.23%-10.79%
20210.71%-1.41%0.53%0.96%0.52%0.33%0.77%-0.37%-0.81%-0.20%0.85%0.15%2.02%

Benchmark Metrics

MFS Massachusetts Municipal Bond Fund has an annualized alpha of 4.16%, beta of 0.01, and R2 of 0.00 versus S&P 500 Index. Calculated based on daily prices since April 09, 1985.

  • This fund participates in less of S&P 500 Index's moves in both directions, but captures a larger share of gains (15.69%) than losses (4.15%) - 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
4.16%
Beta
0.01
0.00
Upside Capture
15.69%
Downside Capture
4.15%

Expense Ratio

MFSSX has an expense ratio of 0.83%, placing it in the medium range.


Return for Risk

Risk / Return Rank

MFSSX ranks 75 for risk / return — better than 75% 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.


MFSSX Risk / Return Rank: 7575
Overall Rank
MFSSX Sharpe Ratio Rank: 8686
Sharpe Ratio Rank
MFSSX Sortino Ratio Rank: 9090
Sortino Ratio Rank
MFSSX Omega Ratio Rank: 9292
Omega Ratio Rank
MFSSX Calmar Ratio Rank: 5656
Calmar Ratio Rank
MFSSX Martin Ratio Rank: 5151
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 MFS Massachusetts Municipal Bond Fund (MFSSX) 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.


MFSSXBenchmarkDifference
Sharpe ratioReturn per unit of total volatility

+0.58

Sortino ratioReturn per unit of downside risk

+1.35

Omega ratioGain probability vs. loss probability

1.67

1.37

+0.30

Calmar ratioReturn relative to maximum drawdown

2.74

2.78

-0.04

Martin ratioReturn relative to average drawdown

9.86

12.44

-2.58

Dividends

Dividend History

MFS Massachusetts Municipal Bond Fund provided a 3.21% dividend yield over the last twelve months, with an annual payout of $0.33 per share. The fund has been increasing its distributions for 3 consecutive years.


2.00%2.50%3.00%3.50%4.00%$0.00$0.10$0.20$0.30$0.4020152016201720182019202020212022202320242025
Dividends
Dividend Yield
PeriodTTM20252024202320222021202020192018201720162015
Dividend$0.33$0.43$0.29$0.25$0.18$0.22$0.28$0.37$0.37$0.42$0.40$0.42

Dividend yield

3.21%4.20%2.81%2.43%1.84%1.91%2.44%3.27%3.42%3.74%3.64%3.70%

Monthly Dividends

The table displays the monthly dividend distributions for MFS Massachusetts Municipal Bond Fund. The dividends shown in the table have been adjusted to account for any splits that may have occurred.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
2026$0.03$0.03$0.03$0.03$0.03$0.00$0.14
2025$0.05$0.05$0.05$0.05$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.43
2024$0.03$0.03$0.00$0.03$0.03$0.00$0.03$0.03$0.03$0.03$0.05$0.03$0.29
2023$0.03$0.02$0.03$0.02$0.02$0.02$0.03$0.00$0.02$0.00$0.03$0.03$0.25
2022$0.02$0.02$0.02$0.02$0.02$0.00$0.00$0.02$0.00$0.02$0.02$0.03$0.18
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$0.22

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 MFS Massachusetts Municipal Bond 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 MFS Massachusetts Municipal Bond Fund was 17.05%, occurring on Oct 19, 1987. Recovery took 776 trading sessions.


Related event

Drawdown

Fall

Recovery

Underwater

Black Monday1987
-17.05%Oct 1987
7mo 3d3y 25d
3y 7moMar 1987 - Nov 1990
Bear market2022
-16.13%Oct 2022
1y 2mo3y 3mo
4y 6moAug 2021 - Feb 2026
COVID crash2020
-13.35%Mar 2020
18d9mo 16d
10mo 4dMar 2020 - Dec 2020
Financial crisis2007–2009
-12.33%Dec 2008
10mo 26d4mo 8d
1y 2moJan 2008 - Apr 2009
2013 correction2013
-10.70%Sep 2013
9mo 3d1y 23d
1y 9moDec 2012 - Oct 2014

Drawdown Indicators


MFSSXBenchmarkDifference

Max Drawdown

Largest peak-to-trough decline

-17.05%

-56.78%

+39.73%

Max Drawdown (1Y)

Largest decline over 1 year

-2.72%

-9.10%

+6.38%

Max Drawdown (3Y)

Largest decline over 3 years

-6.64%

-18.90%

+12.26%

Max Drawdown (5Y)

Largest decline over 5 years

-16.13%

-25.43%

+9.30%

Max Drawdown (10Y)

Largest decline over 10 years

-16.13%

-33.92%

+17.79%

Current Drawdown

Current decline from peak

0.00%

-1.80%

+1.80%

Average Drawdown

Average peak-to-trough decline

-2.40%

-10.71%

+8.31%

Ulcer Index

Depth and duration of drawdowns from previous peaks

0.75%

2.03%

-1.28%

Volatility

Volatility Chart

The chart below shows the rolling one-month volatility.


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Portfolio Analyzer

Build a portfolio with MFSSX

Add MFS Massachusetts Municipal Bond 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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