C000030615 Performance — MFS Research International Portfolio, Class A
Data updated: 2026-08-27
C000030615 returned +10.37% year to date and +16.37% over one year to Jun 2026. Annualised returns are +12.82% over 3 years and +6.27% over 5 years. Against its International Mid-Cap Growth category average the fund came out behind over three years but ahead over one: $100 invested three years ago grew to $144, against $147 for the category, and to $116 over one year, against $115. Volatility over the past three years was 12.33% a year. In the 12 months to Jun 2026 the fund lost a net $9.5M, and assets reached $1.43B.
C000030615 Growth of $100
What $100 invested in MFS Research International Portfolio grew to, compounded from monthly returns reported on SEC Form N-PORT, against the International Mid-Cap Growth category average over the same months.
| Period | C000030615 | Category average |
|---|---|---|
| 1 year (Jul 2025 – Jun 2026) | $116 | $115 |
| 3 years (Jul 2023 – Jun 2026) | $144 | $147 |
| 5 years (Jul 2021 – Jun 2026) | $136 | $129 |
| Since data start (Jul 2019 – Jun 2026) | $181 | $183 |
C000030615 Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +10.37% |
| 1 year | +16.37% |
| 3 years (annualised) | +12.82% |
| 5 years (annualised) | +6.27% |
C000030615 Annual Returns
Calendar-year total returns of MFS Research International Portfolio, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | +10.37% |
| 2025 | +22.69% |
| 2024 | +3.17% |
| 2023 | +13.04% |
| 2022 | −17.31% |
| 2021 | +11.97% |
| 2020 | +13.30% |
| 2019 (Jul–Dec) | +9.31% |
C000030615 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 | +5.8% | +4.8% | −8.8% | +5.4% | +1.9% | +1.5% | — | — | — | — | — | — |
| 2025 | +3.9% | +2.0% | −0.9% | +3.2% | +5.1% | +2.1% | −2.8% | +2.3% | +2.0% | +0.7% | +1.1% | +2.0% |
| 2024 | −0.7% | +2.3% | +3.4% | −3.1% | +4.9% | −1.4% | +3.1% | +3.5% | +0.5% | −4.8% | −0.6% | −3.3% |
| 2023 | +7.8% | −3.7% | +2.9% | +3.2% | −4.2% | +4.0% | +1.9% | −3.2% | −4.6% | −3.0% | +7.5% | +4.6% |
| 2022 | −5.3% | −3.6% | −0.8% | −6.3% | +1.8% | −7.9% | +5.2% | −5.6% | −9.7% | +4.4% | +13.0% | −1.8% |
| 2021 | −1.7% | +1.5% | +2.5% | +3.0% | +4.1% | −1.6% | +1.1% | +2.9% | −3.8% | +3.8% | −3.8% | +3.9% |
| 2020 | −2.1% | −6.7% | −12.3% | +6.4% | +5.6% | +3.8% | +3.9% | +4.9% | −1.2% | −4.1% | +11.7% | +5.1% |
| 2019 | — | — | — | — | — | — | −1.8% | −1.1% | +2.6% | +3.7% | +2.0% | +3.7% |
C000030615 Risk
Risk measures from monthly returns over Jul 2023 – Jun 2026.
- 3-year volatility (annualised): 12.33%
- 3-year Sharpe ratio: 0.67 (vs 4.5% risk-free rate)
- Best month: +7.53% (Nov 2023)
- Worst month: −8.78% (Mar 2026)
C000030615 Fund Flows
Monthly money in and out of MFS Research International Portfolio, from SEC Form N-PORT.
- 12-month net flow: −$9.5M
- 12-month gross sales (incl. reinvestments): $232.4M
- Sales ÷ redemptions: 0.96×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $203.0M | $16.7M | $186.2M |
| May 2026 | $2.3M | $8.0M | −$5.7M |
| Apr 2026 | $9.1M | $19.9M | −$10.8M |
| Mar 2026 | $1.5M | $14.8M | −$13.3M |
| Feb 2026 | $1.2M | $42.2M | −$41.0M |
| Jan 2026 | $5.1M | $36.8M | −$31.7M |
| Dec 2025 | $870K | $29.0M | −$28.1M |
| Nov 2025 | $1.1M | $16.1M | −$14.9M |
| Oct 2025 | $1.6M | $20.3M | −$18.7M |
| Sep 2025 | $2.8M | $8.2M | −$5.4M |
| Aug 2025 | $2.2M | $16.0M | −$13.8M |
| Jul 2025 | $1.6M | $13.9M | −$12.2M |
C000030615 Assets Under Management
Net assets of MFS Research International Portfolio by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $1.43B |
| 2026-03-31 | $1.34B |
| 2025-12-31 | $1.40B |
| 2025-09-30 | $1.41B |
| 2025-06-30 | $1.42B |
| 2025-03-31 | $1.37B |
| 2024-12-31 | $1.35B |
| 2024-09-30 | $1.55B |
| 2024-06-30 | $1.50B |
| 2024-03-31 | $1.55B |
| 2023-12-31 | $1.52B |
| 2023-09-30 | $1.40B |
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.