6 9

U.S. Government Bond Fund

DISCLOSURES

THIS INFORMATION IS FOR MARKETING PURPOSES ONLY

Please note that this is an actively managed product. 

Class Z shares ("Z") are only available to certain qualifying institutional investors.

LU2898291138
$ 161.73
$0.49 As of 10-Jun-25
US$315M
As of 30-Apr-25

U.S. Government Bond Fund

LU2898291138
$0.49 As of 10-Jun-25
As of 30-Apr-25
LU2898291138
$ 161.73
$0.49 As of 10-Jun-25
$315M
As of 30-Apr-25

Investment Objective

Seeks total return with an emphasis on current income, but also considering capital appreciation, measured in US dollars.

Investment Focus

Implement a research-intensive process integrating top-down assessment of global risks with bottom up idea generation and security selection

Seek to add value primarily through sector allocation and security selection, as well as duration and yield curve management

Identify opportunities for incremental yield generation

Important Risk Considerations

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

Bond: Investments in debt instruments may decline in value as the result of, or perception 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 portfolio's value may decline during rising rates. Portfolios 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. The price of an instrument trading at a negative interest rate responds to interest rate changes like other debt instruments; however, an instrument purchased at a negative interest rate is expected to produce a negative return if held to maturity.

Derivatives: 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.

Mortgage-backed: Mortgage-backed securities can be subject to prepayment and/or extension and therefore can offer less potential for gains and greater potential for loss.

Geographic: Because the portfolio may invest a substantial amount of its assets in issuers located in a single country or in a limited number of countries, it may be more volatile than a portfolio that is more geographically diversified.

U.S. Government Credit: U.S. government securities not supported as to the payment of principal or interest by the U.S. Treasury are subject to greater credit risk than are U.S. government securities supported by the U.S. Treasury.

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

Fund Information

  • Fund Inception 26-Sep-2005
  • Net Assets (US$ M) As of 30-Apr-25 US$315.18
  • Fiscal Year End JANUARY
  • SFDR Classification Article 6
  • Benchmark Bloomberg U.S. Government/Mortgage Index

Share Class Information

  • Class Inception 09-Oct-2024
  • Net Asset Value (NAV) As of 10-Jun-25 $161.73
  • Most Recent NAV Change As of 10-Jun-25 $0.49 | 0.30%
  • ISIN LU2898291138
  • SEDOL BSZ7DP7
  • WKN A40NNV
  • Bloomberg MFSUGZ1 LX
  • CUSIP L6368D119
  • Maximum Sales Charge --
  • Benchmark Bloomberg U.S. Government/Mortgage Index

Managers

Geoffrey Schechter, CFA, CPA

Geoffrey Schechter, CFA, CPA

Portfolio Manager

19 YEARS WITH PORTFOLIO

Jake Stone, CFA

Jake Stone, CFA

Portfolio Manager

7 YEARS WITH PORTFOLIO

Rob Hall

Rob Hall

Institutional Portfolio Manager

16 YEARS WITH PORTFOLIO

Top 10 Holdings

As of 30-Apr-25

  • UST Bond 2Yr Future JUN 30 25
  • UST Bond 5Yr Future JUN 30 25
  • UST Bond 10Yr Future JUN 18 25
  • UMBS 30 Year 2.5
  • UMBS 30 Year 2.0
  • UST 10Yr Ultra Bond Future JUN 18 25
  • UMBS 30 Year 3.0
  • US Treasury Note 3.25% JUN 30 29
  • US Treasury Note 2.625% JUL 31 29
  • USD IRS 2Yr Payer 4.759 MAY 24 26*
56.41% long and 2.45% short (*) positions
Full and Historical Holdings
The portfolio is actively managed, and current holdings may be different.

Performance

Collapse Expand
12 Month Total Returns

12 Month Total Returns (%)

12 Month Total Returns (%)

As of 31-May-25 [updated monthly]

These results represent the percent change in net asset value.
12 month period ending:
31-May-21
or Life
31-May-22 31-May-23 31-May-24 31-May-25 YTD % * Class Inception
Class Z1 Shares, US Dollars at NAV -1.74 -7.37 -2.77 -0.34 5.53 2.19 09-Oct-2024
Bloomberg U.S. Government/Mortgage Index -2.33 -7.51 -2.40 0.10 5.36 - -
12 month period ending: Class Z1 Shares, US Dollars at NAV
31-May-21 or Life -1.74
31-May-22 -7.37
31-May-23 -2.77
31-May-24 -0.34
31-May-25 5.53
YTD % * 2.19
Class Inception 09-Oct-2024 09-Oct-2024

Performance results reflect ongoing charges and any applicable expense subsidies and waivers in effect during the periods shown. All historic results assume distributions within the fund and/or the share class are reinvested. 

Past performance is not a reliable indicator for future results. All financial investments involve an element of risk. The value of investments may rise and fall so you may get back less than originally invested.

Investors should consider the risks, including lower returns, related to currency movements between their investing currency and the portfolio's base currency, if different.

Important Performance Information

Class Z1 Roll-Up shares do not pay distributions to shareholders. 

The investment management fee for Class Z shares is not reflected in performance. However, performance for periods prior to the start of the class performance record of the Class Z shares and prior to the fund's inception date reflects all fees paid within the oldest share class in the performance history.

The MFS Meridian Funds offer several share classes each with different expenses. Performance reflects the performance of a relevant older class with the same currency until the class inception date of the class detailed. Performance for periods prior to that date may have been higher or lower had the actual share class fees and expenses been reflected.

Average Annual Total Returns

Average Annual Total Returns (%)

Average Annual Total Returns (%)

These results represent the percent change in net asset value.

Updated monthly as of 31-May-25

    Performance results reflect ongoing charges and any applicable expense subsidies and waivers in effect during the periods shown. All historic results assume distributions within the fund and/or the share class are reinvested. 

    Past performance is not a reliable indicator for future results. All financial investments involve an element of risk. The value of investments may rise and fall so you may get back less than originally invested.

    Investors should consider the risks, including lower returns, related to currency movements between their investing currency and the portfolio's base currency, if different.

    MORNINGSTAR RATING
    Morningstar View Overall Morningstar Ratings Information
    OVERALL
    Out Of Funds
    NA
    OVERALL MORNINGSTAR RATING
    NA
    THREE YEAR
    Out Of Funds
    NA
    FIVE YEAR
    Out Of Funds
    NA
    TEN YEAR
    Out Of Funds
    NA

    Important Performance Information

    Class Z1 Roll-Up shares do not pay distributions to shareholders. 

    The investment management fee for Class Z shares is not reflected in performance. However, performance for periods prior to the start of the class performance record of the Class Z shares and prior to the fund's inception date reflects all fees paid within the oldest share class in the performance history.

    The MFS Meridian Funds offer several share classes each with different expenses. Performance reflects the performance of a relevant older class with the same currency until the class inception date of the class detailed. Performance for periods prior to that date may have been higher or lower had the actual share class fees and expenses been reflected.

    Annual Rate of Return

    Annual Rate of Return (%)

    As of 31-Dec-24

    |

    Benchmark: Bloomberg U.S. Government/Mortgage Index

    annual rate of return table
    Life
    		2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
    At NAV 2.48 0.46 0.72 2.18 0.41 6.25 6.42 -1.90 -12.11 3.90 0.81
    Bloomberg U.S. Government/Mortgage Index - 1.13 1.31 2.37 0.93 6.63 6.36 -1.77 -12.12 4.45 0.83
    At NAV Bloomberg U.S. Government/Mortgage Index
    2024 0.81 0.83
    2023 3.9 4.45
    2022 -12.11 -12.12
    2021 -1.9 -1.77
    2020 6.42 6.36
    2019 6.25 6.63
    2018 0.41 0.93
    2017 2.18 2.37
    2016 0.72 1.31
    2015 0.46 1.13
    2.48 -

    Performance results reflect ongoing charges and any applicable expense subsidies and waivers in effect during the periods shown. All historic results assume distributions within the fund and/or the share class are reinvested. 

    Past performance is not a reliable indicator for future results. All financial investments involve an element of risk. The value of investments may rise and fall so you may get back less than originally invested.

    Investors should consider the risks, including lower returns, related to currency movements between their investing currency and the portfolio's base currency, if different.

    Important Performance Information

    Class Z1 Roll-Up shares do not pay distributions to shareholders. 

    The investment management fee for Class Z shares is not reflected in performance. However, performance for periods prior to the start of the class performance record of the Class Z shares and prior to the fund's inception date reflects all fees paid within the oldest share class in the performance history.

    The MFS Meridian Funds offer several share classes each with different expenses. Performance reflects the performance of a relevant older class with the same currency until the class inception date of the class detailed. Performance for periods prior to that date may have been higher or lower had the actual share class fees and expenses been reflected.

    Pricing & Distributions

    Pricing History

    • NAV at Close of Trading on:  10-Jun-25
    • Net Asset Value (NAV):  $161.73
    • Change ($) (since 09-Jun-25):  0.49
    • Change (%) (since 09-Jun-25):  0.30
    • Market Price (MP): 
    Maximum data displayed is for the most recent 10 years
    Historical NAV Lookup
    Enter date for which you wish to obtain a Historical NAV for this fund

    Historical NAV may not be available for all dates.

    Historical MP Lookup
    Enter date for which you wish to obtain a Historical MP for this fund

    Historical MP may not be available for all dates.

    Historical Exit Price Table
    NAV at Close of Trading on Net Asset Value (NAV)
    No Data Available

    Distributions
    The Record Date is the date on which a fund declares a distribution. To receive the distribution, an investor must be a shareholder of record on that date.

    The Payable Date is the date on which the distribution is paid to shareholders.

    Dividend Rate per Share is the amount of dividend that a shareholder will receive for each share held. It can be calculated by taking the total amount of dividends paid and dividing it by the total shares outstanding.

    Ex-Dividend Date is the date on which a fund goes ex-dividend. The interval between the announcement and the payment of the next dividend. An investor must own the fund before the ex-dividend date to be eligible for the dividend payout.

    There are no distributions for this share class or distributions are currently not available

    Portfolio & Holdings Information
    The portfolio is actively managed, and current holdings may be different.

    Collapse Expand
    Sector, Holding & Characterstics

    Holding Characteristics
    Average Coupon: Average Coupon is the equivalent exposure weighted coupon of all interest bearing instruments as a percent of the total equivalent exposure of all fixed income holdings, including short term and interest rate derivatives which have coupons. Coupons are netted for securities with a payable and receivable leg. Non-accruing securities are treated as having a coupon equal to zero.

    Average Effective Duration is a measure of how much a bond's price is likely to fluctuate with general changes in interest rates, e.g., if rates rise 1.00%, a bond with a 5-year duration is likely to lose about 5.00% of its value.

    Average Effective Maturity is a weighted average of maturity of the bonds held in a portfolio, taking into account any prepayments, puts, and adjustable coupons which may shorten the maturity. Longer-maturity funds are generally considered more interest-rate sensitive than shorter maturity funds.

    As of 30-Apr-25

    Data table of holding characteristics
    characteristics Fixed Earning
    Number of Issues 600
    Number of Issuers 44
    Average Coupon 3.60
    Average Effective Duration 6.06 yrs
    Average Effective Maturity 6.96 yrs
    Average Credit Quality of Rated Securities AA+

    Performance Statistics

    Alpha is a measure of the portfolio's risk-adjusted performance. When compared to the portfolio's beta, a positive alpha indicates better-than-expected portfolio performance and a negative indicates alpha worse-than-expected portfolio performance.

    Beta is a measure of the volatility of a portfolio relative to the overall market. A beta less than 1.0 indicates lower risk than the market; a beta greater than 1.0 indicates higher risk than the market. It is most reliable as a risk measure when the return fluctuations of the portfolio are highly correlated with the return fluctuations of the index chosen to represent the market.

    Information ratio is a measure of consistency in excess return. It is calculated by taking the annualized excess return over a benchmark and dividing it by the annualized standard deviation of excess return.

    R squared represents the percentage of the portfolio's movements that can be explained by the general movements of the market.  Index portfolios will tend to have values very close to 100.  R squared is not a measure of performance.

    The Sharpe Ratio is a risk-adjusted measure calculated to determine reward per unit of risk. It uses a standard deviation and excess return. The higher the Sharpe Ratio, the better the portfolio's historical risk-adjusted performance.

    Standard Deviation is an indicator of the portfolio's total return volatility, which is based on a minimum of 36 monthly returns. The larger the portfolio's standard deviation, the greater the portfolio's volatility.

    Tracking error is the standard deviation of a portfolio's excess returns. Excess returns are a portfolio's return minus the benchmark's annualized return.

    Treynor Ratio: Treynor Ratio is a risk adjusted measure of performance. It is the ratio of the annualized excess return of the portfolio over the risk free rate for a given period divided by the Beta of the portfolio versus its benchmark for the same period. It measures the amount of excess return over the risk free rate earned per unit of systematic risk (beta) assumed.

    Upside and downside capture is a measure of how well a manager was able to replicate or improve on phases of positive benchmark returns, and how badly the manager was affected by phases of negative benchmark returns. Upside capture ratio for a portfolio is calculated by taking the portfolio's return during periods when the benchmark had a positive return and dividing it by the benchmark return during that same period. Downside capture ratio is calculated by taking the portfolio's return during the periods of negative benchmark performance and dividing it by the benchmark return for that period.

    Updated Monthly As of 30-Apr-25

    Benchmark
    Bloomberg U.S. Government/Mortgage Index
    Performance Statistics Table
    10 Yr. 5 Yr. 3 Yr.
    Alpha n/a n/a n/a
    Beta n/a n/a n/a
    R-squared n/a n/a n/a
    Standard Deviation % n/a n/a n/a
    Sharpe Ratio n/a n/a n/a
    Tracking Error n/a n/a n/a
    Information Ratio n/a n/a n/a
    Treynor Ratio n/a n/a n/a
    Downside Capture % n/a n/a n/a
    Upside Capture % n/a n/a n/a

    Top 10 Holdings

    As of 30-Apr-25

    • UST Bond 2Yr Future JUN 30 25
    • UST Bond 5Yr Future JUN 30 25
    • UST Bond 10Yr Future JUN 18 25
    • UMBS 30 Year 2.5
    • UMBS 30 Year 2.0
    • UST 10Yr Ultra Bond Future JUN 18 25
    • UMBS 30 Year 3.0
    • US Treasury Note 3.25% JUN 30 29
    • US Treasury Note 2.625% JUL 31 29
    • USD IRS 2Yr Payer 4.759 MAY 24 26*

    56.41% long and 2.45% short (*) positions
    Full and Historical Holdings

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

    Credit Quality (%)

    As of 30-Apr-25

    • % of Total Net Assets

    • U.S. Government
      24.08
    • Federal Agencies
      59.18
    • AAA
      7.57
    • AA
      0.36
    • A
      0.20
    • BBB
      0.03
    • Other Not Rated
      8.58

    Currency Weights (%)

    As of 30-Apr-25

    • United States Dollar
      100.00
    Important Characteristics Information
    The portfolio is actively managed, and current holdings may be different.

    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.

    *Short positions, unlike long positions, lose value if the underlying asset gains value.

    Resources

    Collapse Expand
    Fund Documents & Fact Sheets
    Click here to view fund documents such as Key Investor Documents, Complete Prospectus, Annual Report, Semi Annual Report, Swing Pricing, and Fact Sheets. Some of these documents are available in other languages.
    • Overview

      Investment Objective

      Seeks total return with an emphasis on current income, but also considering capital appreciation, measured in US dollars.

      Investment Focus

      Implement a research-intensive process integrating top-down assessment of global risks with bottom up idea generation and security selection

      Seek to add value primarily through sector allocation and security selection, as well as duration and yield curve management

      Identify opportunities for incremental yield generation

      Important Risk Considerations

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

      Bond: Investments in debt instruments may decline in value as the result of, or perception 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 portfolio's value may decline during rising rates. Portfolios 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. The price of an instrument trading at a negative interest rate responds to interest rate changes like other debt instruments; however, an instrument purchased at a negative interest rate is expected to produce a negative return if held to maturity.

      Derivatives: 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.

      Mortgage-backed: Mortgage-backed securities can be subject to prepayment and/or extension and therefore can offer less potential for gains and greater potential for loss.

      Geographic: Because the portfolio may invest a substantial amount of its assets in issuers located in a single country or in a limited number of countries, it may be more volatile than a portfolio that is more geographically diversified.

      U.S. Government Credit: U.S. government securities not supported as to the payment of principal or interest by the U.S. Treasury are subject to greater credit risk than are U.S. government securities supported by the U.S. Treasury.

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

      Fund Information

      • Fund Inception 26-Sep-2005
      • Net Assets (US$ M) As of 30-Apr-25 US$315.18
      • Fiscal Year End JANUARY
      • SFDR Classification Article 6
      • Benchmark Bloomberg U.S. Government/Mortgage Index

      Share Class Information

      • Class Inception 09-Oct-2024
      • Net Asset Value (NAV) As of 10-Jun-25 $161.73
      • Most Recent NAV Change As of 10-Jun-25 $0.49 | 0.30%
      • ISIN LU2898291138
      • SEDOL BSZ7DP7
      • WKN A40NNV
      • Bloomberg MFSUGZ1 LX
      • CUSIP L6368D119
      • Maximum Sales Charge --
      • Benchmark Bloomberg U.S. Government/Mortgage Index

      Managers

      Geoffrey Schechter, CFA, CPA

      Geoffrey Schechter, CFA, CPA

      Portfolio Manager

      19 YEARS WITH PORTFOLIO

      Jake Stone, CFA

      Jake Stone, CFA

      Portfolio Manager

      7 YEARS WITH PORTFOLIO

      Rob Hall

      Rob Hall

      Institutional Portfolio Manager

      16 YEARS WITH PORTFOLIO

      Top 10 Holdings

      As of 30-Apr-25

      • UST Bond 2Yr Future JUN 30 25
      • UST Bond 5Yr Future JUN 30 25
      • UST Bond 10Yr Future JUN 18 25
      • UMBS 30 Year 2.5
      • UMBS 30 Year 2.0
      • UST 10Yr Ultra Bond Future JUN 18 25
      • UMBS 30 Year 3.0
      • US Treasury Note 3.25% JUN 30 29
      • US Treasury Note 2.625% JUL 31 29
      • USD IRS 2Yr Payer 4.759 MAY 24 26*
      56.41% long and 2.45% short (*) positions
      Full and Historical Holdings
      The portfolio is actively managed, and current holdings may be different.
    • Performance

      Performance

      Collapse Expand
      12 Month Total Returns

      12 Month Total Returns (%)

      12 Month Total Returns (%)

      As of 31-May-25 [updated monthly]

      These results represent the percent change in net asset value.
      12 month period ending:
      31-May-21
      or Life
      		31-May-22 31-May-23 31-May-24 31-May-25 YTD % * Class Inception
      Class Z1 Shares, US Dollars at NAV -1.74 -7.37 -2.77 -0.34 5.53 2.19 09-Oct-2024
      Bloomberg U.S. Government/Mortgage Index -2.33 -7.51 -2.40 0.10 5.36 - -
      12 month period ending: Class Z1 Shares, US Dollars at NAV
      31-May-21 or Life -1.74
      31-May-22 -7.37
      31-May-23 -2.77
      31-May-24 -0.34
      31-May-25 5.53
      YTD % * 2.19
      Class Inception 09-Oct-2024 09-Oct-2024

      Performance results reflect ongoing charges and any applicable expense subsidies and waivers in effect during the periods shown. All historic results assume distributions within the fund and/or the share class are reinvested. 

      Past performance is not a reliable indicator for future results. All financial investments involve an element of risk. The value of investments may rise and fall so you may get back less than originally invested.

      Investors should consider the risks, including lower returns, related to currency movements between their investing currency and the portfolio's base currency, if different.

      Important Performance Information

      Class Z1 Roll-Up shares do not pay distributions to shareholders. 

      The investment management fee for Class Z shares is not reflected in performance. However, performance for periods prior to the start of the class performance record of the Class Z shares and prior to the fund's inception date reflects all fees paid within the oldest share class in the performance history.

      The MFS Meridian Funds offer several share classes each with different expenses. Performance reflects the performance of a relevant older class with the same currency until the class inception date of the class detailed. Performance for periods prior to that date may have been higher or lower had the actual share class fees and expenses been reflected.

      Average Annual Total Returns

      Average Annual Total Returns (%)

      Average Annual Total Returns (%)

      These results represent the percent change in net asset value.

      Updated monthly as of 31-May-25

        Performance results reflect ongoing charges and any applicable expense subsidies and waivers in effect during the periods shown. All historic results assume distributions within the fund and/or the share class are reinvested. 

        Past performance is not a reliable indicator for future results. All financial investments involve an element of risk. The value of investments may rise and fall so you may get back less than originally invested.

        Investors should consider the risks, including lower returns, related to currency movements between their investing currency and the portfolio's base currency, if different.

        MORNINGSTAR RATING
        Morningstar View Overall Morningstar Ratings Information
        OVERALL
        Out Of Funds
        NA
        OVERALL MORNINGSTAR RATING
        NA
        THREE YEAR
        Out Of Funds
        NA
        FIVE YEAR
        Out Of Funds
        NA
        TEN YEAR
        Out Of Funds
        NA

        Important Performance Information

        Class Z1 Roll-Up shares do not pay distributions to shareholders. 

        The investment management fee for Class Z shares is not reflected in performance. However, performance for periods prior to the start of the class performance record of the Class Z shares and prior to the fund's inception date reflects all fees paid within the oldest share class in the performance history.

        The MFS Meridian Funds offer several share classes each with different expenses. Performance reflects the performance of a relevant older class with the same currency until the class inception date of the class detailed. Performance for periods prior to that date may have been higher or lower had the actual share class fees and expenses been reflected.

        Annual Rate of Return

        Annual Rate of Return (%)

        As of 31-Dec-24

        |

        Benchmark: Bloomberg U.S. Government/Mortgage Index

        annual rate of return table
        Life
        		2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
        At NAV 2.48 0.46 0.72 2.18 0.41 6.25 6.42 -1.90 -12.11 3.90 0.81
        Bloomberg U.S. Government/Mortgage Index - 1.13 1.31 2.37 0.93 6.63 6.36 -1.77 -12.12 4.45 0.83
        At NAV Bloomberg U.S. Government/Mortgage Index
        2024 0.81 0.83
        2023 3.9 4.45
        2022 -12.11 -12.12
        2021 -1.9 -1.77
        2020 6.42 6.36
        2019 6.25 6.63
        2018 0.41 0.93
        2017 2.18 2.37
        2016 0.72 1.31
        2015 0.46 1.13
        2.48 -

        Performance results reflect ongoing charges and any applicable expense subsidies and waivers in effect during the periods shown. All historic results assume distributions within the fund and/or the share class are reinvested. 

        Past performance is not a reliable indicator for future results. All financial investments involve an element of risk. The value of investments may rise and fall so you may get back less than originally invested.

        Investors should consider the risks, including lower returns, related to currency movements between their investing currency and the portfolio's base currency, if different.

        Important Performance Information

        Class Z1 Roll-Up shares do not pay distributions to shareholders. 

        The investment management fee for Class Z shares is not reflected in performance. However, performance for periods prior to the start of the class performance record of the Class Z shares and prior to the fund's inception date reflects all fees paid within the oldest share class in the performance history.

        The MFS Meridian Funds offer several share classes each with different expenses. Performance reflects the performance of a relevant older class with the same currency until the class inception date of the class detailed. Performance for periods prior to that date may have been higher or lower had the actual share class fees and expenses been reflected.

        Pricing & Distributions

        Pricing History

        • NAV at Close of Trading on:  10-Jun-25
        • Net Asset Value (NAV):  $161.73
        • Change ($) (since 09-Jun-25):  0.49
        • Change (%) (since 09-Jun-25):  0.30
        • Market Price (MP): 
        Maximum data displayed is for the most recent 10 years
        Historical NAV Lookup
        Enter date for which you wish to obtain a Historical NAV for this fund

        Historical NAV may not be available for all dates.

        Historical MP Lookup
        Enter date for which you wish to obtain a Historical MP for this fund

        Historical MP may not be available for all dates.

        Historical Exit Price Table
        NAV at Close of Trading on Net Asset Value (NAV)
        No Data Available

        Distributions
        The Record Date is the date on which a fund declares a distribution. To receive the distribution, an investor must be a shareholder of record on that date.

        The Payable Date is the date on which the distribution is paid to shareholders.

        Dividend Rate per Share is the amount of dividend that a shareholder will receive for each share held. It can be calculated by taking the total amount of dividends paid and dividing it by the total shares outstanding.

        Ex-Dividend Date is the date on which a fund goes ex-dividend. The interval between the announcement and the payment of the next dividend. An investor must own the fund before the ex-dividend date to be eligible for the dividend payout.

        There are no distributions for this share class or distributions are currently not available
      • Portfolio & Holdings Information

        Portfolio & Holdings Information
        The portfolio is actively managed, and current holdings may be different.

        Collapse Expand
        Sector, Holding & Characterstics

        Holding Characteristics
        Average Coupon: Average Coupon is the equivalent exposure weighted coupon of all interest bearing instruments as a percent of the total equivalent exposure of all fixed income holdings, including short term and interest rate derivatives which have coupons. Coupons are netted for securities with a payable and receivable leg. Non-accruing securities are treated as having a coupon equal to zero.

        Average Effective Duration is a measure of how much a bond's price is likely to fluctuate with general changes in interest rates, e.g., if rates rise 1.00%, a bond with a 5-year duration is likely to lose about 5.00% of its value.

        Average Effective Maturity is a weighted average of maturity of the bonds held in a portfolio, taking into account any prepayments, puts, and adjustable coupons which may shorten the maturity. Longer-maturity funds are generally considered more interest-rate sensitive than shorter maturity funds.

        As of 30-Apr-25

        Data table of holding characteristics
        characteristics Fixed Earning
        Number of Issues 600
        Number of Issuers 44
        Average Coupon 3.60
        Average Effective Duration 6.06 yrs
        Average Effective Maturity 6.96 yrs
        Average Credit Quality of Rated Securities AA+

        Performance Statistics

        Alpha is a measure of the portfolio's risk-adjusted performance. When compared to the portfolio's beta, a positive alpha indicates better-than-expected portfolio performance and a negative indicates alpha worse-than-expected portfolio performance.

        Beta is a measure of the volatility of a portfolio relative to the overall market. A beta less than 1.0 indicates lower risk than the market; a beta greater than 1.0 indicates higher risk than the market. It is most reliable as a risk measure when the return fluctuations of the portfolio are highly correlated with the return fluctuations of the index chosen to represent the market.

        Information ratio is a measure of consistency in excess return. It is calculated by taking the annualized excess return over a benchmark and dividing it by the annualized standard deviation of excess return.

        R squared represents the percentage of the portfolio's movements that can be explained by the general movements of the market.  Index portfolios will tend to have values very close to 100.  R squared is not a measure of performance.

        The Sharpe Ratio is a risk-adjusted measure calculated to determine reward per unit of risk. It uses a standard deviation and excess return. The higher the Sharpe Ratio, the better the portfolio's historical risk-adjusted performance.

        Standard Deviation is an indicator of the portfolio's total return volatility, which is based on a minimum of 36 monthly returns. The larger the portfolio's standard deviation, the greater the portfolio's volatility.

        Tracking error is the standard deviation of a portfolio's excess returns. Excess returns are a portfolio's return minus the benchmark's annualized return.

        Treynor Ratio: Treynor Ratio is a risk adjusted measure of performance. It is the ratio of the annualized excess return of the portfolio over the risk free rate for a given period divided by the Beta of the portfolio versus its benchmark for the same period. It measures the amount of excess return over the risk free rate earned per unit of systematic risk (beta) assumed.

        Upside and downside capture is a measure of how well a manager was able to replicate or improve on phases of positive benchmark returns, and how badly the manager was affected by phases of negative benchmark returns. Upside capture ratio for a portfolio is calculated by taking the portfolio's return during periods when the benchmark had a positive return and dividing it by the benchmark return during that same period. Downside capture ratio is calculated by taking the portfolio's return during the periods of negative benchmark performance and dividing it by the benchmark return for that period.

        Updated Monthly As of 30-Apr-25

        Benchmark
        Bloomberg U.S. Government/Mortgage Index
        Performance Statistics Table
        10 Yr. 5 Yr. 3 Yr.
        Alpha n/a n/a n/a
        Beta n/a n/a n/a
        R-squared n/a n/a n/a
        Standard Deviation % n/a n/a n/a
        Sharpe Ratio n/a n/a n/a
        Tracking Error n/a n/a n/a
        Information Ratio n/a n/a n/a
        Treynor Ratio n/a n/a n/a
        Downside Capture % n/a n/a n/a
        Upside Capture % n/a n/a n/a

        Top 10 Holdings

        As of 30-Apr-25

        • UST Bond 2Yr Future JUN 30 25
        • UST Bond 5Yr Future JUN 30 25
        • UST Bond 10Yr Future JUN 18 25
        • UMBS 30 Year 2.5
        • UMBS 30 Year 2.0
        • UST 10Yr Ultra Bond Future JUN 18 25
        • UMBS 30 Year 3.0
        • US Treasury Note 3.25% JUN 30 29
        • US Treasury Note 2.625% JUL 31 29
        • USD IRS 2Yr Payer 4.759 MAY 24 26*

        56.41% long and 2.45% short (*) positions
        Full and Historical Holdings

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

        Credit Quality (%)

        As of 30-Apr-25

        • % of Total Net Assets

        • U.S. Government
          24.08
        • Federal Agencies
          59.18
        • AAA
          7.57
        • AA
          0.36
        • A
          0.20
        • BBB
          0.03
        • Other Not Rated
          8.58

        Currency Weights (%)

        As of 30-Apr-25

        • United States Dollar
          100.00
        Important Characteristics Information
        The portfolio is actively managed, and current holdings may be different.

        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.

        *Short positions, unlike long positions, lose value if the underlying asset gains value.

      • Resources

        Resources

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        Fund Documents & Fact Sheets
        Click here to view fund documents such as Key Investor Documents, Complete Prospectus, Annual Report, Semi Annual Report, Swing Pricing, and Fact Sheets. Some of these documents are available in other languages.
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