MFS Inflation-Adjusted Bond Fund Class B (MIABX)

NASDAQ · Mutual Fund · Delayed Price · Currency is USD
9.08
+0.01 (0.11%)
At close: Feb 13, 2026
Fund Assets1.54B
Expense Ratio1.39%
Min. Investment$1,000
Turnover38.00%
Dividend (ttm)0.30
Dividend Yield3.28%
Dividend Growth9.47%
Payout FrequencyQuarterly
Ex-Dividend DateDec 11, 2025
Previous Close9.07
YTD Return1.23%
1-Year Return5.54%
5-Year Return-1.38%
52-Week Low8.62
52-Week High9.10
Beta (5Y)n/a
Holdings104
Inception DateSep 1, 2004

About MIABX

MFS Inflation-Adjusted Bond Fund Class B is a mutual fund designed to provide investors with a total return that surpasses the rate of inflation over the long term, emphasizing current income while also considering capital appreciation. The fund primarily invests at least 80% of its net assets in inflation-adjusted debt instruments, such as U.S. Treasury Inflation-Protected Securities (TIPS), and can also allocate assets to inflation-linked securities issued by U.S. government agencies and other entities. This focus on inflation-protected bonds aims to help preserve the purchasing power of capital for investors amid rising consumer prices. The fund employs active strategies in duration and yield curve management to seek added value, and it is benchmarked against the Bloomberg U.S. Treasury Inflation Protected Securities Index. Established in 2004, the fund plays a notable role within the fixed-income sector, offering an option for investors seeking resilience against inflation within a diversified bond portfolio. The Class B share structure involves a contingent deferred sales charge that decreases over time, and ongoing operating expenses are reflected in its expense ratio.

Fund Family MFS
Category Inflation-Protected Bond
Performance Rating Below Average
Risk Rating Average
Stock Exchange NASDAQ
Ticker Symbol MIABX
Share Class B
Index Bloomberg U.S. TIPS TR

Performance

MIABX had a total return of 5.54% in the past year, including dividends. Since the fund's inception, the average annual return has been 4.58%.

Equivalent Funds

These are funds that follow the same index from the other major fund companies.

SymbolProviderNameExpense Ratio
SWRSXSchwabSchwab Treasury Inflation Protected Securities Index Fund0.05%
VIPSXVanguardVanguard Inflation-Protected Securities Fund Investor Shares0.20%
FIPDXFidelityFidelity Inflation-Protected Bond Index Fund0.05%

Other Share Classes

These are alternative share classes of the same fund, from the same provider.

SymbolShare ClassExpense Ratio
MIAKXR60.41%
MIAIXI0.49%
MIAJXR40.49%
MIAAXA0.64%

Dividend History

Ex-DividendAmountPay Date
Dec 11, 2025$0.10166Dec 12, 2025
Sep 25, 2025$0.07259Sep 26, 2025
Jun 26, 2025$0.11272Jun 27, 2025
Mar 25, 2025$0.01054Mar 26, 2025
Dec 12, 2024$0.09717Dec 13, 2024
Sep 26, 2024$0.04886Sep 27, 2024
Full Dividend History