SGSSX — MFS Limited Maturity Portfolio
Data updated: 2026-08-24
SGSSX — MFS Limited Maturity Portfolio. Intermediate Corporate Bond · $282.55M AUM · 0.48% expense ratio. Holdings, fees, performance and SEC filings.
SGSSX Fund Overview
SGSSX — MFS Limited Maturity Portfolio is a US mutual fund managed by Mfs Variable Insurance Trust III, categorised as Intermediate Corporate Bond. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: Mfs Variable Insurance Trust III
- Category: Intermediate Corporate Bond
- Assets under management: $282.55M
- 1-year return: 3.7%
- Ticker: SGSSX
- SEC CIK: 0001065698
- SEC series ID: S000018844
- Share class ID: C000052151
SGSSX Investment Objective and Strategy
MFS Limited Maturity Portfolio describes its objective and strategy as follows, from its latest prospectus filed with the SEC by Mfs Variable Insurance Trust III.
Investment objective
The funds investment objective is to seek total return with an emphasis on current income, but also considering capital preservation.
Principal investment strategy
MFS (Massachusetts Financial Services Company, the fund's investment adviser) normally invests the funds assets primarily in debt instruments. Debt instruments include U.S. Government securities, corporate debt instruments, foreign government securities, securitized instruments (including mortgage-backed securities and other asset-backed securities), and other obligations to repay money borrowed. The funds dollar-weighted average effective maturity will normally not exceed five years. MFS generally invests substantially all of the funds assets in investment grade quality debt instruments. MFS invests the funds assets in U.S. securities and U.S. dollar-denominated foreign securities, which may include emerging market securities. MFS normally invests the fund's assets across different industries, sectors, countries, and regions, but MFS may invest a significant percentage of the funds assets in issuers in a single industry, sector, country, or region.
MFS may invest a significant percentage of the funds assets in a single issuer or a small number of issuers. While MFS may use derivatives for any investment purpose, to the extent MFS uses derivatives, MFS expects to use derivatives primarily to increase or decrease exposure to a particular market, segment of the market, or security, to increase or decrease interest rate exposure, or as alternatives to direct investments. Derivatives include futures, forward contracts, options, and swaps. MFS uses an active bottom-up investment approach to buying and selling investments for the fund. Investments are selected primarily based on fundamental analysis of individual instruments and their issuers. Quantitative screening tools that systematically evaluate instruments may also be considered. In structuring the fund, MFS also considers top-down factors.
SGSSX Holdings
Top 10 holdings of MFS Limited Maturity Portfolio by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| United States Treasury | 8.11% |
| United States Treasury | 4.84% |
| MFS Institutional Money Market Portfolio | 4.39% |
| United States Treasury | 3.57% |
| United States Treasury | 3.39% |
| United States Treasury | 1.22% |
| Bank Of America Corp. | 0.83% |
| Toronto-Dominion Bank | 0.67% |
| Mf1 | 0.67% |
| TCW Ltd | 0.63% |
SGSSX Portfolio Allocation
Asset-class allocation of MFS Limited Maturity Portfolio by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 72.0% |
| Securitized | 23.7% |
| Equity | 4.4% |
SGSSX Performance
Total returns for SGSSX (as of 2026-10-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 1.1% |
| 1 year | 3.7% |
| 3 years (annualised) | 5.5% |
| 5 years (annualised) | 2.7% |
SGSSX Risk Information
Risk metrics for SGSSX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 1.2%
SGSSX Costs and Fees
SGSSX costs about $48 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.48%
- Gross expense ratio: 0.49%
- Portfolio turnover: 46%
- Brokerage commissions: 0.07 bps of average net assets (SEC N-CEN)
SGSSX Cashflows
Over the 12 months to 2026-06, MFS Limited Maturity Portfolio had net inflows of $1.40M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | $6.24M |
| 2026-05 | −$283.65K |
| 2026-04 | −$3.84M |
| 2026-03 | −$4.37M |
| 2026-02 | −$966.82K |
| 2026-01 | −$2.20M |
SGSSX Debt Constituents
Largest debt holdings of MFS Limited Maturity Portfolio by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| United States Treasury | 8.11% |
| United States Treasury | 4.84% |
| United States Treasury | 3.57% |
| United States Treasury | 3.39% |
| United States Treasury | 1.22% |
| Bank Of America Corp. | 0.83% |
| Toronto-Dominion Bank | 0.67% |
| Jbs Nv/usa Foods/food Co. | 0.62% |
| Charles Schwab Corp. | 0.60% |
| Pnc Financial Services | 0.59% |
SGSSX Prospectus and SEC Filings
Official MFS Limited Maturity Portfolio filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2026-04-29
- Prospectus (485BPOS) — filed 2025-04-29
- Prospectus (485BPOS) — filed 2024-04-26
- Portfolio holdings (N-PORT) — filed 2026-08-24
- Portfolio holdings (N-PORT) — filed 2026-05-26
- Portfolio holdings (N-PORT) — filed 2026-02-24
- Annual census (N-CEN) — filed 2026-03-13
- Annual census (N-CEN) — filed 2025-03-14
Related Funds
Other Intermediate Corporate Bond funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.