To seek total return with an emphasis on current income.
Investment Focus
Conservative, short-term bond fund investing primarily in investment-grade securities
Constructs a high quality and short duration portfolio from the bottom up
Diversifies across fixed income sectors seeking to reduce risk
Fund Information
Fund Commencement
09/10/2026
Net Assets
($
M)
As of 10/02/26
$27.06
Fiscal Year End
FEBRUARY
Benchmark
Bloomberg One- to Five-Year Government Bond Index measures short-term (1 to 5 years) government bonds.
Bloomberg 1-5 Year U.S. Government/Credit Bond Index
Net Asset Value (NAV)
As of 10/02/26
$24.60
Most Recent NAV Change
As of 10/02/26
$0.02
|
0.08%
Market Price (MP)
As of 10/02/26
$24.64
Most Recent Market Price Change
As of 10/02/26
$0.02
|
0.09%
Premium / Discount
As of 10/02/26
Premium/Discount indicates whether a fund is trading above (premium) or below (discount) its Net Asset Value (NAV).
0.19%
30 Day Median Bid / Ask Spread
The median bid-ask spread is calculated by identifying national best bid and national best offer (NBBO) for each Fund as of the end of each 10 second interval during each trading day of the last 30 calendar days and dividing the difference between each such bid and offer by the midpoint of the NBBO. The median of those values is the median bid-ask spread, which is identified and posted on each business day.
--
Expense Ratio
Gross Expense Ratio: The Gross Expense Ratio is the fund's total operating expense ratio from the fund's most recent prospectus.
The fund may not achieve its objective and/or you could lose money on your investment in the fund.
Exchange-Traded Funds (ETFs) trade like stocks, are subject to investment risk, and will fluctuate in market value. Shares of ETFs are bought and sold at market price, not NAV, and are not individually redeemed from the fund. The market price at the time of sale may be higher or lower than the fund’s NAV, and any applicable brokerage commissions will reduce returns. There can be no guarantee that an active market for the funds will develop or be maintained.
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.
Please see the prospectus for further information on these and other risk considerations.
Philipp Burgener, CFA
Portfolio Manager
26
YEARS WITH INDUSTRY
1
YEAR WITH PORTFOLIO
26
YEARS WITH INDUSTRY
1
YEAR WITH PORTFOLIO
Philipp S. Burgener, CFA, is an investment officer and fixed income portfolio manager at MFS Investment Management® (MFS®). He is part of the portfolio management teams for the limited maturity strategy as well as the US and global opportunistic fixed income strategies and serves as the leader of MFS' structured product team.
Philipp assumed his portfolio manager role in 2017. He first joined the structured product team in 2003 as a research associate and became a research analyst in 2005. Prior to that, he served as a quantitative research associate. He joined MFS in 2000 in a sales role.
Philipp earned a Bachelor of Arts degree from Colgate University and a Master of Science degree from Boston University. He holds the Chartered Financial Analyst (CFA) designation and is a member of CFA Society Boston.
Alexander M. Mackey, CFA, is co-chief investment officer of Fixed Income at MFS Investment Management® (MFS®). As co-CIO, he has joint oversight of MFS' global fixed income team and works collaboratively with the firm's investment leadership team to ensure its fixed income investors have the tools and skill sets necessary to serve clients globally. He is also a fixed income portfolio manager on several strategies, including the firm's multisector fixed income strategies, with oversight of dedicated US credit portfolios.
Alexander assumed his current role in 2023. Prior to taking on portfolio management responsibilities in 2017, he worked as a credit research analyst for 13 years and a fixed income research associate for three years. He joined MFS as a financial control assistant in 1998.
Alexander has a bachelor's degree from Trinity College and holds the Chartered Financial Analyst (CFA) designation. He is a member of CFA Society Boston.
(*YTD Updated
As of 10/02/26 , subject to revision and not annualized.)
Performance data shown represents past performance and is no guarantee of future results. Investment return and principal value fluctuate so your shares, when sold, may be worth more or less than the original cost; current performance may be lower or higher than quoted.
1
YTD (year-to-date return): For the period from January 1 of the current year to the date shown, or from inception date if first offered after January 1 of the current year.
When applicable, returns for less than one year are not annualized, but calculated as cumulative total returns.
Important Performance Information
All results are historical and assume the reinvestment of dividends and capital gains.
Annual Rate of Return
Annual Rate of Return (%)
Market price returns are calculated using the closing price reported by the exchange.
No data currently available
annual rate of return table
Pricing & Distributions
Premium / Discount (%)
The line graph and table below display historical data regarding the differences between the daily closing market price of the fund - as determined by the fund’s listing exchange - and the fund’s NAV. The Vertical Axis displays the premium/discount as a percentage of NAV, while the Horizontal Axis displays the corresponding date.
The table below shows the number of trading days in which the ETF traded at a premium (greater than), discount (less than) or at its NAV.
Number of Days at a Premium / Discount
Calendar
Year 2025
Q1
2026
Q2
2026
Q3
2026
Q4
2026
Premium
Premium: When the fund's market price is higher than its Net Asset Value.
-
0
0
15
2
NAV
-
0
0
0
0
Discount
Discount: When the fund's market price is lower than its Net Asset Value.
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
Historical MP Table
MP at Close of Trading on
Market Price (MP)
No Data Available
30-Day SEC Yield (%)
The fund's 30-day yield is based on the yield of a fund's investments over a 30-day period and not on the dividend paid by the fund, which may differ.
No data currently 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.
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.
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.
Long-term Capital Gain
The gain on the sale of a capital asset where the holding period was more than 12 months and the profit was subject to the long-term capital gains tax.
(Source: Barron's Dictionary of Finance and Investment Terms)
Short-term Capital Gain
For tax purposes the profit realized from the sale of securities or other capital assets held for less than 12 months. Short-term gains are taxable at ordinary income rates to the extent they are not reduced by offsetting capital losses.
(Source: Barron's Dictionary of Finance and Investment Terms)
Updated Daily As of
10/03/26
Record Date
Ex-Date
Payable Date
Type of Earnings
Rate per Share (US$)
09/30/26
09/30/26
10/01/26
Dividend
0.06727
Portfolio & Holdings Information
Portfolio characteristic data are based on unaudited net assets.
The portfolio is actively managed, and current holdings may be different.
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.
Weighted average yield-to-worst of all portfolio holdings excluding cash & derivatives. Yield-to-worst is the annual estimate of the portfolio yield considering factors such as call provisions, prepayments, and other features that may affect a bond's cash flow; and assumes no default. It is an estimated characteristic at a point in time and is not a measure of portfolio performance.
No data currently available
Top 10 Holdings
No data currently available
The portfolio is actively managed, and current holdings may be different.
Exposures
Portfolio Structure (%)
No data currently available
Credit Quality (%)
For all securities other than those described below, ratings are assigned utilizing ratings from Moody’s, Fitch, and Standard & Poor’s and applying the following hierarchy: If all three agencies provide a rating, the consensus rating is assigned if applicable or the middle rating if not; if two of the three agencies rate a security, the lower of the two is assigned. If none of the 3 Rating Agencies above assign a rating, but the security is rated by DBRS Morningstar, then the DBRS Morningstar rating is assigned. If none of the 4 rating agencies listed above rate the security, but the security is rated by the Kroll Bond Rating Agency (KBRA), then the KBRA rating is assigned. Other Not Rated includes other securities not rated by any rating agency. Ratings are shown in the S&P and Fitch scale (e.g., AAA). All ratings are subject to change. The portfolio itself has not been rated by any rating agency. The credit quality of a particular security or group of securities does not ensure the stability or safety of an overall portfolio. The quality ratings of individual issues/issuers are provided to indicate the credit-worthiness of such issues/ issuer and generally range from AAA, Aaa, or AAA (highest) to D, C, or D (lowest) for S&P, Moody’s, and Fitch respectively. The index rating methodology may differ.
No data currently available
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.
Fees
0.25
% Expense Ratio
Gross Expense Ratio: The Gross Expense Ratio is the fund's total operating expense ratio from the fund's most recent prospectus.
MFS® launched two new actively managed ETFs today that are now trading on the NYSE Arca:
• MFS® Active Short Muni Bond ETF (NYSE Arca: MFSX)
• MFS® Active Short Duration Income ETF (NYSE Arca: MFSD)
To seek total return with an emphasis on current income.
Investment Focus
Conservative, short-term bond fund investing primarily in investment-grade securities
Constructs a high quality and short duration portfolio from the bottom up
Diversifies across fixed income sectors seeking to reduce risk
Fund Information
Fund Commencement
09/10/2026
Net Assets
($
M)
As of 10/02/26
$27.06
Fiscal Year End
FEBRUARY
Benchmark
Bloomberg One- to Five-Year Government Bond Index measures short-term (1 to 5 years) government bonds.
Bloomberg 1-5 Year U.S. Government/Credit Bond Index
Net Asset Value (NAV)
As of 10/02/26
$24.60
Most Recent NAV Change
As of 10/02/26
$0.02
|
0.08%
Market Price (MP)
As of 10/02/26
$24.64
Most Recent Market Price Change
As of 10/02/26
$0.02
|
0.09%
Premium / Discount
As of 10/02/26
Premium/Discount indicates whether a fund is trading above (premium) or below (discount) its Net Asset Value (NAV).
0.19%
30 Day Median Bid / Ask Spread
The median bid-ask spread is calculated by identifying national best bid and national best offer (NBBO) for each Fund as of the end of each 10 second interval during each trading day of the last 30 calendar days and dividing the difference between each such bid and offer by the midpoint of the NBBO. The median of those values is the median bid-ask spread, which is identified and posted on each business day.
--
Expense Ratio
Gross Expense Ratio: The Gross Expense Ratio is the fund's total operating expense ratio from the fund's most recent prospectus.
The fund may not achieve its objective and/or you could lose money on your investment in the fund.
Exchange-Traded Funds (ETFs) trade like stocks, are subject to investment risk, and will fluctuate in market value. Shares of ETFs are bought and sold at market price, not NAV, and are not individually redeemed from the fund. The market price at the time of sale may be higher or lower than the fund’s NAV, and any applicable brokerage commissions will reduce returns. There can be no guarantee that an active market for the funds will develop or be maintained.
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.
Please see the prospectus for further information on these and other risk considerations.
Philipp Burgener, CFA
Portfolio Manager
26
YEARS WITH INDUSTRY
1
YEAR WITH PORTFOLIO
26
YEARS WITH INDUSTRY
1
YEAR WITH PORTFOLIO
Philipp S. Burgener, CFA, is an investment officer and fixed income portfolio manager at MFS Investment Management® (MFS®). He is part of the portfolio management teams for the limited maturity strategy as well as the US and global opportunistic fixed income strategies and serves as the leader of MFS' structured product team.
Philipp assumed his portfolio manager role in 2017. He first joined the structured product team in 2003 as a research associate and became a research analyst in 2005. Prior to that, he served as a quantitative research associate. He joined MFS in 2000 in a sales role.
Philipp earned a Bachelor of Arts degree from Colgate University and a Master of Science degree from Boston University. He holds the Chartered Financial Analyst (CFA) designation and is a member of CFA Society Boston.
Alexander M. Mackey, CFA, is co-chief investment officer of Fixed Income at MFS Investment Management® (MFS®). As co-CIO, he has joint oversight of MFS' global fixed income team and works collaboratively with the firm's investment leadership team to ensure its fixed income investors have the tools and skill sets necessary to serve clients globally. He is also a fixed income portfolio manager on several strategies, including the firm's multisector fixed income strategies, with oversight of dedicated US credit portfolios.
Alexander assumed his current role in 2023. Prior to taking on portfolio management responsibilities in 2017, he worked as a credit research analyst for 13 years and a fixed income research associate for three years. He joined MFS as a financial control assistant in 1998.
Alexander has a bachelor's degree from Trinity College and holds the Chartered Financial Analyst (CFA) designation. He is a member of CFA Society Boston.
(*YTD Updated
As of 10/02/26 , subject to revision and not annualized.)
Performance data shown represents past performance and is no guarantee of future results. Investment return and principal value fluctuate so your shares, when sold, may be worth more or less than the original cost; current performance may be lower or higher than quoted.
1
YTD (year-to-date return): For the period from January 1 of the current year to the date shown, or from inception date if first offered after January 1 of the current year.
When applicable, returns for less than one year are not annualized, but calculated as cumulative total returns.
Important Performance Information
All results are historical and assume the reinvestment of dividends and capital gains.
Annual Rate of Return
Annual Rate of Return (%)
Market price returns are calculated using the closing price reported by the exchange.
No data currently available
annual rate of return table
Pricing & Distributions
Premium / Discount (%)
The line graph and table below display historical data regarding the differences between the daily closing market price of the fund - as determined by the fund’s listing exchange - and the fund’s NAV. The Vertical Axis displays the premium/discount as a percentage of NAV, while the Horizontal Axis displays the corresponding date.
The table below shows the number of trading days in which the ETF traded at a premium (greater than), discount (less than) or at its NAV.
Number of Days at a Premium / Discount
Calendar
Year 2025
Q1
2026
Q2
2026
Q3
2026
Q4
2026
Premium
Premium: When the fund's market price is higher than its Net Asset Value.
-
0
0
15
2
NAV
-
0
0
0
0
Discount
Discount: When the fund's market price is lower than its Net Asset Value.
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
Historical MP Table
MP at Close of Trading on
Market Price (MP)
No Data Available
30-Day SEC Yield (%)
The fund's 30-day yield is based on the yield of a fund's investments over a 30-day period and not on the dividend paid by the fund, which may differ.
No data currently 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.
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.
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.
Long-term Capital Gain
The gain on the sale of a capital asset where the holding period was more than 12 months and the profit was subject to the long-term capital gains tax.
(Source: Barron's Dictionary of Finance and Investment Terms)
Short-term Capital Gain
For tax purposes the profit realized from the sale of securities or other capital assets held for less than 12 months. Short-term gains are taxable at ordinary income rates to the extent they are not reduced by offsetting capital losses.
(Source: Barron's Dictionary of Finance and Investment Terms)
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.
Weighted average yield-to-worst of all portfolio holdings excluding cash & derivatives. Yield-to-worst is the annual estimate of the portfolio yield considering factors such as call provisions, prepayments, and other features that may affect a bond's cash flow; and assumes no default. It is an estimated characteristic at a point in time and is not a measure of portfolio performance.
No data currently available
Top 10 Holdings
No data currently available
The portfolio is actively managed, and current holdings may be different.
Exposures
Portfolio Structure (%)
No data currently available
Credit Quality (%)
For all securities other than those described below, ratings are assigned utilizing ratings from Moody’s, Fitch, and Standard & Poor’s and applying the following hierarchy: If all three agencies provide a rating, the consensus rating is assigned if applicable or the middle rating if not; if two of the three agencies rate a security, the lower of the two is assigned. If none of the 3 Rating Agencies above assign a rating, but the security is rated by DBRS Morningstar, then the DBRS Morningstar rating is assigned. If none of the 4 rating agencies listed above rate the security, but the security is rated by the Kroll Bond Rating Agency (KBRA), then the KBRA rating is assigned. Other Not Rated includes other securities not rated by any rating agency. Ratings are shown in the S&P and Fitch scale (e.g., AAA). All ratings are subject to change. The portfolio itself has not been rated by any rating agency. The credit quality of a particular security or group of securities does not ensure the stability or safety of an overall portfolio. The quality ratings of individual issues/issuers are provided to indicate the credit-worthiness of such issues/ issuer and generally range from AAA, Aaa, or AAA (highest) to D, C, or D (lowest) for S&P, Moody’s, and Fitch respectively. The index rating methodology may differ.
No data currently available
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.
MFS® launched two new actively managed ETFs today that are now trading on the NYSE Arca:
• MFS® Active Short Muni Bond ETF (NYSE Arca: MFSX)
• MFS® Active Short Duration Income ETF (NYSE Arca: MFSD)