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Nasdaq - Delayed Quote USD

MFS Municipal Income B (MMIBX)

7.90
-0.14
(-1.74%)
At close: 8:01:40 PM EDT

Performance Overview

Morningstar Return Rating --
YTD Return 0.74%
5y Average Return 1.56%
Number of Years Up 32
Number of Years Down 6
Best 1Y Total Return (Apr 4, 2025) 10.01%
Worst 1Y Total Return (Apr 4, 2025) --
Best 3Y Total Return 10.01%
Worst 3Y Total Return -2.32%

Trailing Returns (%) Vs. Benchmarks

Monthly Total Returns
MMIBX
Category
YTD
-0.66%
2.30%
1-Month
-1.94%
0.50%
3-Month
-0.66%
2.43%
1-Year
1.65%
6.88%
3-Year
0.70%
5.62%
5-Year
0.76%
3.37%
10-Year
1.50%
4.67%
Last Bull Market
5.39%
6.75%
Last Bear Market
-4.33%
6.47%

Annual Total Return (%) History

Year
MMIBX
Category
2025
--
--
2024
2.64%
--
2023
5.93%
--
2022
-11.82%
--
2021
2.35%
--
2020
3.28%
5.36%
2019
7.21%
8.37%
2018
0.37%
0.27%

2017
4.97%
5.71%
2016
0.25%
0.00%
2015
2.67%
3.07%
2014
10.01%
10.58%
2013
-5.80%
-4.59%
2012
9.75%
8.87%
2011
9.65%
10.64%
2010
1.30%
1.65%
2009
17.16%
17.30%
2008
-8.28%
-9.45%
2007
1.85%
1.27%
2006
3.99%
4.57%
2005
3.20%
3.10%
2004
4.26%
3.77%
2003
5.12%
4.90%
2002
7.23%
8.45%
2001
3.29%
3.92%
2000
9.10%
11.24%
1999
-3.62%
-4.70%
1998
4.26%
5.43%
1997
8.81%
9.12%
1996
2.87%
3.48%
1995
13.82%
17.06%
1994
-5.30%
-6.32%
1993
10.82%
12.44%
1992
7.88%
8.91%
1991
11.41%
11.89%
1990
3.55%
6.40%
1989
9.26%
9.69%
1988
12.91%
11.46%
1987
-4.32%
-0.89%

Past Quarterly Returns

YearQ1Q2Q3Q4
2025 -0.66% -- -- --
2024 0.31% 0.79% 3.01% -1.46%
2023 2.59% -0.11% -4.45% 8.19%
2022 -6.73% -4.33% -4.31% 3.28%
2021 0.06% 2.14% -0.52% 0.66%
2020 -3.08% 2.24% 1.60% 2.59%
2019 2.74% 2.32% 1.69% 0.29%
2018 -1.07% 0.80% -0.14% 0.78%
2017 1.24% 1.96% 1.14% 0.55%
2016 1.53% 2.60% -0.22% -3.54%

2015 0.89% -1.12% 1.38% 1.52%
2014 3.53% 2.94% 1.72% 1.47%
2013 -0.22% -4.26% -1.33% -0.07%
2012 3.36% 2.22% 2.91% 0.94%
2011 -0.67% 4.22% 3.95% 1.88%
2010 1.74% 1.60% 3.25% -5.09%
2009 5.35% 3.84% 8.33% -1.14%
2008 -1.26% 0.63% -3.81% -4.04%
2007 0.62% -0.66% 1.25% 0.64%
2006 0.28% 0.05% 2.77% 0.85%
2005 0.08% 2.40% 0.17% 0.52%
2004 1.70% -2.33% 3.54% 1.37%
2003 0.60% 2.71% 0.36% 1.37%
2002 0.64% 3.43% 4.17% -1.10%
2001 1.92% 0.49% 2.57% -1.67%
2000 2.72% 0.76% 2.19% 3.14%
1999 0.91% -2.00% -0.90% -1.66%
1998 0.80% 1.02% 2.59% -0.20%
1997 -0.99% 3.34% 3.62% 2.63%
1996 -1.53% 0.29% 1.83% 2.30%
1995 5.86% 2.08% 1.49% 3.78%
1994 -4.82% 0.99% 0.31% -1.79%
1993 3.72% 2.81% 2.89% 1.00%
1992 0.24% 3.66% 2.20% 1.59%
1991 2.15% 2.43% 3.73% 2.65%
1990 0.08% 1.52% -0.34% 2.27%
1989 0.82% 5.56% 0.05% 2.60%
1988 3.90% 2.59% 2.88% 2.96%
1987 0.47% -5.24% -3.20% 3.81%

Rank in Category (By Total Return)

YTD 52
1-Month 50
3-Month 52
1-Year 36
3-Year 73
5-Year 64

Load Adjusted Returns

1-Year -2.31%
3-Year -0.24%
5-Year 0.40%
10-Year 1.50%

Performance & Risk

YTD Return 0.74%
5y Average Return 1.56%
Rank in Category (ytd) 52
% Rank in Category (ytd) --
Beta (5Y Monthly) 1.10
Morningstar Risk Rating

Fund Overview

Category Muni National Long
Fund Family MFS
Net Assets 5.89B
YTD Return -0.66%
Yield 2.78%
Morningstar Rating
Inception Date Aug 01, 2011

Fund Summary

The fund invests normally at least 80% of its net assets in securities and other investments, the interest on which is exempt from federal income tax. Interest from its investments may be subject to the federal alternative minimum tax. The fund normally invests its assets primarily in municipal instruments. It may invest 25% or more of its total assets in municipal instruments that finance similar projects, such as those relating to education, healthcare, housing, utilities, water, or sewers.

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