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MFS® Inflation-Adjusted Bond Portfolio

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CUSIP:  86664T359  
Daily NAV:  $10.18  (as of 7/30/15)
    Characteristics Portfolio Profile Performance Portfolio Management Price History Fund Reports/Prospectus Sales Tools

Portfolio Profile S1

Seeks to maintain investor's purchasing power by investing in a range of inflation-adjusted debt securities

The portfolio's manager seeks a total return for the fund ahead of the rate of inflation over the long-term through a portfolio of inflation-adjusted securities issued by the U.S. Treasury, U.S. Government agencies and instrumentalities other than the U.S. Treasury, and by other entities such as U.S. and foreign corporations and foreign governments. In addition, the portfolio may invest in other instruments with similar economic characteristics to these instruments, including derivatives and non-inflation-adjusted debt instruments.


Seeks total return that exceeds the rate of inflation over the long-term, with an emphasis on current income, but also considering capital appreciation.


  • Classification: Bond
  • Class Inception: 10/1/08  
  • CUSIP:  86664T359  

Portfolio Facts:

Portfolio characteristic data are based on unaudited net assets.

The portfolio is actively managed, and current holdings may be different.

Portfolio Structure
(on 6/30/15)
Non-U.S. Sovereigns 54.86%
U.S. Treasuries 41.98%
Cash & Other1 3.15%
Portfolio Statistics
(on 6/30/15)
What's this?
Average Effective Maturity 13.62 yrs
Average Effective Duration 8.05 yrs
Top 10 Holdings
(on 6/30/15)  
What's this?
Full & Historical Holdings
US Treasury Inflation Indexed Bonds 1.375% JAN 15 20
US Treasury Inflation Indexed Bonds 0.625% JAN 15 24
US Treasury Inflation Indexed Bonds 0.125% JUL 15 22
US Treasury Inflation Indexed Bonds 0.125% JAN 15 23
US Treasury Inflation Indexed Bonds 0.125% APR 15 19
United Kingdom Gilt Inflation Linked 0.625% NOV 22 42
US Treasury Inflation Indexed Bonds 0.125% JAN 15 22
US Treasury Inflation Indexed Bonds 0.375% JUL 15 23
US Treasury Inflation Indexed Bonds 0.25% JAN 15 25
United Kingdom Gilt Inflation Linked 2.500 JUL 17 24

21.09% of total net assets
Total number of holdings: 99
Credit Quality
(% of Total Net Assets on 6/30/15)
What's this?
U.S. Government 41.98%
AAA 11.08%
AA 33.04%
A 5.22%
BBB 5.53%

Portfolio characteristics are based on equivalent exposure, which measures how a portfolio's value would change due to price changes in an asset held either directly or, in the case of a derivative contract, indirectly. The market value of the holding may differ.


1 The assets included in "Other" carry risks including market, credit, counterparty, currency and liquidity risks. The inclusion of these assets may understate or overstate the portfolio's actual cash position.

S1 Performance figures shown for periods before December 8, 2012, represent performance of the prior investment adviser and sub-adviser to the fund's predecessor under the previous investment strategies for the Fund.

Important Risk Considerations

The portfolio may not achieve its objective and/or you could lose money on your investment in the portfolio.

Investments in debt instruments may decline in value as the result of declines in the credit quality of the issuer, borrower, counterparty, or other entity responsible for payment, underlying collateral, or changes in economic, political, issuer-specific, or other conditions. Certain types of debt instruments can be more sensitive to these factors and therefore more volatile. In addition, debt instruments entail interest rate risk (as interest rates rise, prices usually fall), therefore the Fund's share price may decline during rising rate environments as the underlying debt instruments in the portfolio adjust to the rise in rates. Funds that consist of debt instruments with longer durations are generally more sensitive to a rise in interest rates than those with shorter durations. At times, and particularly during periods of market turmoil, all or a large portion of segments of the market may not have an active trading market. As a result, it may be difficult to value these investments and it may not be possible to sell a particular investment or type of investment at any particular time or at an acceptable price.

Investments in derivatives can be used to take both long and short positions, be highly volatile, involve leverage (which can magnify losses), and involve risks in addition to the risks of the underlying indicator(s) on which the derivative is based, such as counterparty and liquidity risk.

Investments in lower-quality debt instruments can be more volatile and have greater risk of default, or already be in default, than higher-quality debt instruments.

The portfolio's performance could be more volatile than the performance of more diversified portfolios.

Interest payments on inflation-adjusted debt instruments can be unpredictable and vary based on the level of inflation.

Please see the prospectus for further information on these and other risk considerations.

Before purchasing any variable product, consider the objectives, risks, charges, and expenses associated with the underlying investment option(s) and those of the product itself. For a prospectus, or summary prospectus if available, containing this and other information, contact your investment or insurance professional. Read the prospectus carefully before investing.