SGSSX Performance — MFS Limited Maturity Portfolio, Initial Class
Data updated: 2026-08-24
SGSSX returned +1.07% year to date and +3.68% over one year to Jun 2026. Annualised returns are +5.45% over 3 years and +2.68% over 5 years. The fund trailed its Short-Term Corporate Bond category average: $100 invested three years ago grew to $117, against $121 for the category, and to $104 over one year, against $105. Volatility over the past three years was 1.72% a year. In the 12 months to Jun 2026 the fund took in a net $1.4M, and assets reached $282.55M.
SGSSX Growth of $100
What $100 invested in MFS Limited Maturity Portfolio grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Short-Term Corporate Bond category average over the same months.
| Period | SGSSX | Category average |
|---|---|---|
| 1 year (Jul 2025 – Jun 2026) | $104 | $105 |
| 3 years (Jul 2023 – Jun 2026) | $117 | $121 |
| 5 years (Jul 2021 – Jun 2026) | $114 | $117 |
| Since data start (Jul 2019 – Jun 2026) | $122 | $128 |
SGSSX Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +1.07% |
| 1 year | +3.68% |
| 3 years (annualised) | +5.45% |
| 5 years (annualised) | +2.68% |
SGSSX Annual Returns
Calendar-year total returns of MFS Limited Maturity Portfolio, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | +1.07% |
| 2025 | +5.84% |
| 2024 | +5.28% |
| 2023 | +6.07% |
| 2022 | −4.13% |
| 2021 | +0.16% |
| 2020 | +4.33% |
| 2019 (Jul–Dec) | +1.57% |
SGSSX Monthly Returns
Monthly total returns as reported on SEC Form N-PORT.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | +0.3% | +0.6% | −0.6% | +0.4% | +0.2% | +0.2% | — | — | — | — | — | — |
| 2025 | +0.5% | +0.8% | +0.4% | +0.6% | +0.1% | +0.8% | +0.1% | +0.9% | +0.4% | +0.3% | +0.6% | +0.3% |
| 2024 | +0.6% | −0.4% | +0.5% | −0.4% | +0.9% | +0.7% | +1.3% | +1.0% | +0.8% | −0.5% | +0.5% | +0.2% |
| 2023 | +1.3% | −0.6% | +1.1% | +0.5% | −0.2% | −0.2% | +0.6% | +0.4% | −0.1% | +0.1% | +1.7% | +1.4% |
| 2022 | −0.8% | −0.5% | −1.4% | −0.8% | +0.1% | −0.9% | +0.7% | −0.5% | −1.4% | −0.3% | +1.5% | +0.1% |
| 2021 | +0.3% | −0.1% | −0.2% | +0.3% | +0.2% | 0.0% | +0.2% | 0.0% | 0.0% | −0.4% | 0.0% | −0.1% |
| 2020 | +0.8% | +0.7% | −4.5% | +2.4% | +1.4% | +1.4% | +0.9% | +0.4% | +0.2% | +0.1% | +0.4% | +0.4% |
| 2019 | — | — | — | — | — | — | +0.1% | +0.8% | +0.1% | +0.3% | +0.1% | +0.2% |
SGSSX Risk
Risk measures from monthly returns over Jul 2023 – Jun 2026.
- 3-year volatility (annualised): 1.72%
- 3-year Sharpe ratio: 0.55 (vs 4.5% risk-free rate)
- Best month: +1.65% (Nov 2023)
- Worst month: −0.58% (Mar 2026)
SGSSX Fund Flows
Monthly money in and out of MFS Limited Maturity Portfolio, from SEC Form N-PORT.
- 12-month net flow: $1.4M
- 12-month gross sales (incl. reinvestments): $58.2M
- Sales ÷ redemptions: 1.02×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $10.9M | $4.6M | $6.2M |
| May 2026 | $3.3M | $3.6M | −$284K |
| Apr 2026 | $1.9M | $5.7M | −$3.8M |
| Mar 2026 | $2.1M | $6.4M | −$4.4M |
| Feb 2026 | $4.2M | $5.2M | −$967K |
| Jan 2026 | $1.7M | $3.8M | −$2.2M |
| Dec 2025 | $3.1M | $3.4M | −$274K |
| Nov 2025 | $575K | $6.6M | −$6.1M |
| Oct 2025 | $4.8M | $5.1M | −$256K |
| Sep 2025 | $7.9M | $3.6M | $4.3M |
| Aug 2025 | $13.4M | $5.0M | $8.3M |
| Jul 2025 | $4.4M | $3.6M | $738K |
SGSSX Assets Under Management
Net assets of MFS Limited Maturity Portfolio by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $282.55M |
| 2026-03-31 | $278.34M |
| 2025-12-31 | $284.95M |
| 2025-09-30 | $288.39M |
| 2025-06-30 | $283.38M |
| 2025-03-31 | $281.99M |
| 2024-12-31 | $292.30M |
| 2024-09-30 | $298.86M |
| 2024-06-30 | $297.28M |
| 2024-03-31 | $303.34M |
| 2023-12-31 | $300.64M |
| 2023-09-30 | $313.74M |
For information only. Not investment advice: figures are as reported in SEC filings and may contain errors or be out of date. Past performance does not guarantee future results.