Mfs Inflation-Adjusted Bond Fund Class B (MIABX) Fund Details & Analysis

Fund Information

Fund Category Inflation-Protected Bond

Fund Family MFS

Fund Style Large Blend

ISIN US55272P3495

CUSIP 55272P349

Inception Date 2003-09-30

Domicile United States

Country USA

Fiscal Year End October

NAV Chart

Fund Metrics

Net Assets $1.54 Billion

Share Class Net Assets $30.00K

Expense Ratio 1.39%

Expense Ratio Date 2025-02-28

Dividend Yield 0.03%

Morning Star Rating -

Morning Star Risk Rating -

Morning Star Category -

Performance

YTD Return 0.11%

1-Year Return 4.85%

3-Year Return 1.84%

5-Year Return -0.51%

NAV $8.98

Previous Close Price $8.95

Last Update 2025-12-31

Dividend Information

Dividend Yield 0.03%

Dividend (ttm) 0.17

Dividend Growth -58.12%

Payout Frequency Annual

Ex-Dividend Date n/a

Ratings

Morning Star Rating -

Morning Star Risk Rating -

Morning Star Category -

Beta (5Y) 1.23

About MFS Inflation-Adjusted Bond Fund Class B

The fund normally invests at least 80% of the fund's net assets in inflation-adjusted debt instruments and other instruments with similar economic characteristics. MFS generally focuses the fund's investments in inflation-adjusted debt instruments issued by the U.S. Treasury.

Detailed Metrics

Market Cap Distribution

AverageMarketCap %

Giant %

Large %

Medium %

Micro %

Small %

Value & Growth Metrics

Book-Value Growth % %

Cash-Flow Growth % %

Dividend Yield % %

Historical Earnings % %

Long-Term Earnings % %

Asset Allocation

Type	Net %	Long %	Short %	Category Average	benchmark
Bond	113.73%	124.46%	10.72%	108.92%	100.00%
Cash	-13.73%	1.63%	15.36%	6.77%	0.00%
Non US Stock	0.00%	0.00%	0.00%	0.00%	0.00%
Not Classified	0.00%	0.00%	0.00%	0.00%	0.00%
Other	0.00%	0.00%	0.00%	0.58%	0.00%
US Stock	0.00%	0.00%	0.00%	0.27%	0.00%

Top Holdings

Name	Weight	Owned	Change
U.S. Treasury Inflation-Indexed Notes	4.41%	-	-
U.S. Treasury Inflation-Indexed Bonds	4.60%	-	-

See the full breakdown of MIABX fund's asset allocation and top holdings .

Sector Weights

Category	Subcategory	Amount %	Category Avg	Stocks %	Benchmark
Bond Sector	Cash and Equivalents	0.00%	5.80%	1.41%	0.00%
Bond Sector	Corporate	0.00%	1.12%	0.22%	0.00%
Bond Sector	Derivative	0.00%	0.12%	0.00%	0.00%
Bond Sector	Government	0.00%	88.19%	94.06%	100.00%
Bond Sector	Municipal	0.00%	0.00%	0.02%	0.00%
Bond Sector	Securitized	0.00%	4.76%	4.29%	0.00%
Cyclical	Basic Materials	0.00%	0.00%	0.00%	0.00%
Cyclical	Consumer Cyclical	0.00%	0.00%	0.00%	0.00%
Cyclical	Financial Services	0.00%	0.00%	0.00%	0.00%
Cyclical	Real Estate	0.00%	0.00%	0.00%	0.00%
Defensive	Consumer Defensive	0.00%	0.00%	0.00%	0.00%
Defensive	Healthcare	0.00%	0.00%	0.00%	0.00%
Defensive	Utilities	0.00%	0.00%	0.00%	0.00%
Sensitive	Communication Services	0.00%	0.00%	0.00%	0.00%
Sensitive	Energy	0.00%	0.00%	0.00%	0.00%
Sensitive	Industrials	0.00%	0.00%	0.00%	0.00%
Sensitive	Technology	0.00%	0.00%	0.00%	0.00%

World Regions

Region	Subregion	Category Average	Stocks Percent	Benchmark
Americas	Latin America	-	-	-
Americas	North America	-	-	-
Greater Asia	Asia Developed	-	-	-
Greater Asia	Asia Emerging	-	-	-
Greater Asia	Australasia	-	-	-
Greater Asia	Japan	-	-	-
Greater Europe	Africa/Middle East	-	-	-
Greater Europe	Europe Developed	-	-	-
Greater Europe	Europe Emerging	-	-	-
Greater Europe	United Kingdom	-	-	-

Dividend History

Date	Amount	Unadjusted Amount	Currency	Declaration Date	Record Date	Payment Date	Period
2024-12-12	$0.097	$0.097	USD	-	-	-	-
2024-09-26	$0.049	$0.049	USD	-	2024-09-25	2024-09-27	Quarterly
2024-06-25	$0.126	$0.126	USD	-	2024-06-24	2024-06-26	Quarterly
2023-12-14	$0.093	$0.093	USD	-	2023-12-13	2023-12-15	Quarterly
2023-09-21	$0.084	$0.084	USD	-	2023-09-20	2023-09-22	Quarterly
2023-06-22	$0.106	$0.106	USD	-	2023-06-21	2023-06-23	Quarterly
2022-12-15	$0.192	$0.192	USD	-	2022-12-14	2022-12-16	Quarterly
2022-09-22	$0.225	$0.225	USD	-	2022-09-21	2022-09-23	Quarterly
2022-06-23	$0.134	$0.134	USD	2022-06-23	2022-06-22	2022-06-24	Quarterly
2022-03-24	$0.085	$0.085	USD	2022-03-24	2022-03-23	2022-03-25	Quarterly
2021-12-16	$0.273	$0.273	USD	2021-12-16	2021-12-15	2021-12-17	Quarterly
2021-09-23	$0.109	$0.109	USD	2021-09-23	2021-09-22	2021-09-24	Quarterly
2021-06-24	$0.081	$0.081	USD	2021-06-24	2021-06-23	2021-06-25	Monthly
2021-03-31	$0.003	$0.003	USD	-	2021-03-31	2021-04-01	Monthly
2021-02-26	$0.003	$0.003	USD	-	2021-02-26	2021-03-01	Monthly
2021-01-29	$0.003	$0.003	USD	-	2021-01-29	2021-02-01	Monthly
2020-12-31	$0.028	$0.028	USD	-	2020-12-31	2020-12-31	Monthly
2020-11-30	$0.043	$0.043	USD	-	2020-11-30	2020-12-01	Monthly
2020-05-29	$0.002	$0.002	USD	-	2020-05-29	2020-06-01	Monthly
2020-04-30	$0.004	$0.004	USD	-	2020-04-30	2020-05-01	Monthly
2020-03-31	$0.008	$0.008	USD	-	2020-03-31	2020-04-01	Monthly
2020-02-28	$0.008	$0.008	USD	-	2020-02-28	2020-03-02	Monthly
2020-01-31	$0.008	$0.008	USD	-	2020-01-31	2020-02-03	Monthly
2019-12-31	$0.037	$0.037	USD	-	2019-12-31	2019-12-31	Monthly
2019-11-29	$0.013	$0.013	USD	-	2019-11-29	2019-12-02	Monthly
2019-10-31	$0.013	$0.013	USD	-	2019-10-31	2019-11-01	Monthly
2019-09-30	$0.013	$0.013	USD	-	2019-09-30	2019-10-01	Monthly
2019-08-30	$0.009	$0.009	USD	-	2019-08-30	2019-09-03	Monthly
2019-07-31	$0.009	$0.009	USD	-	2019-07-31	2019-08-01	Monthly
2019-06-28	$0.009	$0.009	USD	-	2019-06-28	2019-07-01	Monthly
2019-05-31	$0.006	$0.006	USD	2019-06-03	2019-05-31	2019-06-03	Monthly
2019-04-30	$0.006	$0.006	USD	2019-05-01	2019-04-30	2019-05-01	Monthly
2019-03-29	$0.006	$0.006	USD	2019-04-01	2019-03-29	2019-04-01	Monthly
2019-02-28	$0.006	$0.006	USD	2019-03-01	2019-02-28	2019-03-01	Monthly
2019-01-31	$0.010	$0.010	USD	2019-02-01	2019-01-31	2019-02-01	Monthly
2018-12-31	$0.044	$0.044	USD	2019-01-02	2018-12-31	2018-12-31	Monthly
2018-11-30	$0.021	$0.021	USD	2018-12-04	2018-11-30	2018-12-03	Monthly
2018-10-31	$0.021	$0.021	USD	2018-11-02	2018-10-31	2018-11-01	Monthly
2018-09-28	$0.021	$0.021	USD	-	-	-	-
2018-08-31	$0.019	$0.019	USD	2018-09-01	2018-08-31	2018-09-04	Monthly
2018-07-31	$0.019	$0.019	USD	2018-08-02	2018-07-31	2018-08-01	Monthly
2018-06-29	$0.014	$0.014	USD	2018-07-03	2018-06-29	2018-07-02	Monthly
2018-05-31	$0.011	$0.011	USD	2018-06-02	2018-05-31	2018-06-01	Monthly
2018-04-30	$0.011	$0.011	USD	2018-05-01	2018-04-30	2018-05-01	Monthly
2018-03-29	$0.006	$0.006	USD	2018-03-31	2018-03-29	2018-04-02	Monthly
2018-02-28	$0.004	$0.004	USD	2017-03-02	2018-02-28	2018-03-01	Monthly
2018-01-31	$0.004	$0.004	USD	2018-02-02	2018-01-31	2018-02-01	Monthly
2017-12-29	$0.066	$0.066	USD	2018-01-03	2017-12-29	2017-12-29	Monthly
2017-11-30	$0.014	$0.014	USD	2017-12-01	2017-11-30	2017-12-01	Monthly
2017-10-31	$0.009	$0.009	USD	2017-11-02	2017-10-31	2017-11-01	Monthly
2017-09-29	$0.009	$0.009	USD	2017-10-03	2017-09-29	2017-10-02	Monthly
2017-08-31	$0.006	$0.006	USD	2017-09-04	2017-08-31	2017-09-01	Monthly
2017-07-31	$0.006	$0.006	USD	2017-09-21	2017-07-31	2017-08-01	Monthly
2017-06-30	$0.006	$0.006	USD	-	-	-	-
2017-05-31	$0.003	$0.003	USD	-	-	-	-
2017-04-28	$0.004	$0.004	USD	-	-	-	-
2017-03-31	$0.004	$0.004	USD	-	-	-	-
2017-02-28	$0.002	$0.002	USD	-	-	-	-
2017-01-31	$0.002	$0.002	USD	-	-	-	-
2016-12-30	$0.072	$0.072	USD	-	-	-	-
2016-11-30	$0.006	$0.006	USD	-	-	-	-
2016-10-31	$0.002	$0.002	USD	-	-	-	-
2016-09-30	$0.001	$0.001	USD	-	-	-	-
2016-08-31	$0.001	$0.001	USD	-	-	-	-
2016-07-29	$0.002	$0.002	USD	-	-	-	-
2016-06-30	$0.002	$0.002	USD	-	-	-	-
2016-05-31	$0.002	$0.002	USD	-	-	-	-
2016-04-29	$0.002	$0.002	USD	-	-	-	-
2016-03-31	$0.002	$0.002	USD	-	-	-	-
2016-02-29	$0.002	$0.002	USD	-	-	-	-
2016-01-29	$0.002	$0.002	USD	-	-	-	-
2015-12-31	$0.003	$0.003	USD	-	-	-	-
2015-11-30	$0.001	$0.001	USD	-	-	-	-
2015-10-30	$0.002	$0.002	USD	-	-	-	-
2015-09-30	$0.001	$0.001	USD	-	-	-	-
2015-08-31	$0.001	$0.001	USD	-	-	-	-
2015-01-30	$0.001	$0.001	USD	-	-	-	-
2014-12-31	$0.004	$0.004	USD	-	-	-	-
2014-11-28	$0.006	$0.006	USD	-	-	-	-
2014-10-31	$0.009	$0.009	USD	-	-	-	-
2014-09-30	$0.017	$0.017	USD	-	-	-	-
2014-08-29	$0.017	$0.017	USD	-	-	-	-
2014-07-31	$0.012	$0.012	USD	-	-	-	-
2014-06-30	$0.012	$0.012	USD	-	-	-	-
2014-05-30	$0.007	$0.007	USD	-	-	-	-
2014-04-30	$0.004	$0.004	USD	-	-	-	-
2014-03-31	$0.001	$0.001	USD	-	-	-	-
2014-02-28	$0.001	$0.001	USD	-	-	-	-
2014-01-31	$0.004	$0.004	USD	-	-	-	-
2013-12-31	$0.027	$0.027	USD	-	-	-	-
2013-11-29	$0.008	$0.008	USD	-	-	-	-
2013-10-31	$0.005	$0.005	USD	-	-	-	-
2013-09-30	$0.003	$0.003	USD	-	-	-	-
2013-08-30	$0.003	$0.003	USD	-	-	-	-
2013-07-31	$0.003	$0.003	USD	-	-	-	-
2013-06-28	$0.002	$0.002	USD	-	-	-	-
2013-05-31	$0.002	$0.002	USD	-	-	-	-
2013-04-30	$0.002	$0.002	USD	-	-	-	-
2013-03-28	$0.002	$0.002	USD	-	-	-	-
2013-02-28	$0.002	$0.002	USD	-	-	-	-
2013-01-31	$0.003	$0.003	USD	-	-	-	-
2012-12-31	$0.030	$0.030	USD	-	-	-	-
2012-12-12	$0.068	$0.068	USD	2012-12-11	2012-12-11	2012-12-11	Other
2012-12-11	$0.000	$0.000	None	-	-	-	-
2012-11-30	$0.003	$0.003	USD	-	-	-	-
2012-10-31	$0.006	$0.006	USD	-	-	-	-
2012-08-31	$0.003	$0.003	USD	-	-	-	-
2012-07-31	$0.014	$0.014	USD	-	-	-	-
2012-06-29	$0.019	$0.019	USD	-	-	-	-
2012-05-31	$0.019	$0.019	USD	-	-	-	-
2012-04-30	$0.019	$0.019	USD	-	-	-	-
2012-03-30	$0.019	$0.019	USD	-	-	-	-
2012-02-29	$0.019	$0.019	USD	-	-	-	-
2012-01-31	$0.019	$0.019	USD	-	-	-	-
2011-12-30	$0.197	$0.197	USD	-	-	-	-
2011-12-09	$0.024	$0.024	USD	-	2011-12-08	2011-12-08	Other
2011-12-08	$0.000	$0.000	None	-	-	-	-
2011-11-30	$0.022	$0.022	USD	-	-	-	-
2011-10-31	$0.020	$0.020	USD	-	-	-	-
2011-09-30	$0.020	$0.020	USD	-	-	-	-
2011-08-31	$0.020	$0.020	USD	-	-	-	-
2011-07-29	$0.020	$0.020	USD	-	-	-	-
2011-06-30	$0.018	$0.018	USD	-	-	-	-
2011-05-31	$0.016	$0.016	USD	-	-	-	-
2011-04-29	$0.011	$0.011	USD	-	-	-	-
2011-03-31	$0.007	$0.007	USD	-	-	-	-
2011-02-28	$0.005	$0.005	USD	-	-	-	-
2011-01-31	$0.005	$0.005	USD	-	-	-	-
2010-12-31	$0.012	$0.012	USD	-	-	-	-
2010-12-10	$0.040	$0.040	USD	-	2010-12-09	2010-12-09	Other
2010-12-09	$0.000	$0.000	None	-	-	-	-
2010-11-30	$0.007	$0.007	USD	-	-	-	-
2010-10-29	$0.009	$0.009	USD	-	-	-	-
2010-09-30	$0.013	$0.013	USD	-	-	-	-
2010-08-31	$0.013	$0.013	USD	-	-	-	-
2010-07-30	$0.013	$0.013	USD	-	-	-	-
2010-06-30	$0.013	$0.013	USD	-	-	-	-
2010-05-28	$0.013	$0.013	USD	-	-	-	-
2010-03-31	$0.014	$0.014	USD	-	-	-	-
2010-02-26	$0.014	$0.014	USD	-	-	-	-
2010-01-29	$0.014	$0.014	USD	-	-	-	-
2009-12-31	$0.080	$0.080	USD	-	-	-	-
2009-11-30	$0.014	$0.014	USD	-	-	-	-
2009-10-30	$0.014	$0.014	USD	-	-	-	-
2009-09-30	$0.014	$0.014	USD	-	-	-	-
2009-08-31	$0.014	$0.014	USD	-	-	-	-
2009-07-31	$0.014	$0.014	USD	-	-	-	-
2009-06-30	$0.014	$0.014	USD	-	-	-	-
2009-05-29	$0.014	$0.014	USD	-	-	-	-
2009-04-30	$0.014	$0.014	USD	-	-	-	-
2009-03-31	$0.014	$0.014	USD	-	-	-	-
2009-02-27	$0.014	$0.014	USD	-	-	-	-
2009-01-30	$0.002	$0.002	USD	-	-	-	-
2008-12-31	$0.036	$0.036	USD	-	-	-	-
2008-11-28	$0.036	$0.036	USD	-	-	-	-
2008-10-31	$0.036	$0.036	USD	-	-	-	-
2008-09-30	$0.035	$0.035	USD	-	-	-	-
2008-08-29	$0.035	$0.035	USD	-	-	-	-
2008-07-31	$0.035	$0.035	USD	-	-	-	-
2008-06-30	$0.035	$0.035	USD	-	-	-	-
2008-05-30	$0.026	$0.026	USD	-	-	-	-
2008-04-30	$0.020	$0.020	USD	-	-	-	-
2008-03-31	$0.020	$0.020	USD	-	-	-	-
2008-02-29	$0.027	$0.027	USD	-	-	-	-
2008-01-31	$0.027	$0.027	USD	-	-	-	-
2007-12-31	$0.075	$0.075	USD	-	-	-	-
2007-11-30	$0.105	$0.105	USD	-	-	-	-
2007-10-31	$0.038	$0.038	USD	-	-	-	-
2007-09-28	$0.025	$0.025	USD	-	-	-	-
2007-08-31	$0.016	$0.016	USD	-	-	-	-
2007-07-31	$0.016	$0.016	USD	-	-	-	-
2007-06-29	$0.016	$0.016	USD	-	-	-	-
2007-05-31	$0.016	$0.016	USD	-	-	-	-
2007-04-30	$0.008	$0.008	USD	-	-	-	-
2007-03-30	$0.008	$0.008	USD	-	-	-	-
2007-02-28	$0.008	$0.008	USD	-	-	-	-
2007-01-31	$0.008	$0.008	USD	-	-	-	-
2006-12-29	$0.008	$0.008	USD	-	-	-	-
2006-11-30	$0.017	$0.017	USD	-	-	-	-
2006-10-31	$0.024	$0.024	USD	-	-	-	-
2006-09-29	$0.024	$0.024	USD	-	-	-	-
2006-08-31	$0.024	$0.024	USD	-	-	-	-
2006-07-31	$0.024	$0.024	USD	-	-	-	-
2006-06-30	$0.024	$0.024	USD	-	-	-	-
2006-05-31	$0.024	$0.024	USD	-	-	-	-
2006-04-28	$0.024	$0.024	USD	-	-	-	-
2006-03-31	$0.025	$0.025	USD	-	-	-	-
2006-02-28	$0.025	$0.025	USD	-	-	-	-
2006-01-31	$0.030	$0.030	USD	-	-	-	-
2005-12-30	$0.071	$0.071	USD	-	-	-	-
2005-12-01	$0.003	$0.003	USD	-	2005-11-30	2005-12-01	Other
2005-11-30	$0.066	$0.066	USD	-	-	-	-
2005-10-31	$0.070	$0.070	USD	-	-	-	-
2005-09-30	$0.044	$0.044	USD	-	-	-	-
2005-08-31	$0.025	$0.025	USD	-	-	-	-
2005-07-29	$0.024	$0.024	USD	-	-	-	-
2005-06-30	$0.026	$0.026	USD	-	-	-	-
2005-05-31	$0.026	$0.026	USD	-	-	-	-
2005-04-29	$0.025	$0.025	USD	-	-	-	-
2005-03-31	$0.023	$0.023	USD	-	-	-	-
2005-02-28	$0.025	$0.025	USD	-	-	-	-
2005-01-31	$0.026	$0.026	USD	-	-	-	-
2004-12-31	$0.078	$0.078	USD	-	-	-	-
2004-11-30	$0.026	$0.026	USD	-	-	-	-
2004-10-29	$0.026	$0.026	USD	-	-	-	-
2004-09-30	$0.028	$0.028	USD	-	-	-	-

MFS Inflation-Adjusted Bond Fund Class B NMFQS:MIABX