BRUMX Performance — MFS Blended Research Value Equity Fund, Class R4
Data updated: 2026-09-25
BRUMX returned +13.95% year to date and +27.00% over one year to May 2026. Annualised returns are +19.88% over 3 years and +11.49% over 5 years. The fund beat its US Large Value category average: $100 invested three years ago grew to $172, against $165 for the category, and to $127 over one year, against $124. Volatility over the past three years was 12.38% a year. In the 12 months to May 2026 the fund lost a net $4.9M, and assets reached $331.34M.
BRUMX Growth of $100
What $100 invested in MFS Blended Research Value Equity Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the US Large Value category average over the same months.
| Period | BRUMX | Category average |
|---|---|---|
| 1 year (Jun 2025 – May 2026) | $127 | $124 |
| 3 years (Jun 2023 – May 2026) | $172 | $165 |
| 5 years (Jun 2021 – May 2026) | $172 | $163 |
| Since data start (Sep 2019 – May 2026) | $233 | $223 |
BRUMX Trailing Returns
Total returns to May 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +13.95% |
| 1 year | +27.00% |
| 3 years (annualised) | +19.88% |
| 5 years (annualised) | +11.49% |
BRUMX Annual Returns
Calendar-year total returns of MFS Blended Research Value Equity Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–May) | +13.95% |
| 2025 | +15.34% |
| 2024 | +12.87% |
| 2023 | +14.58% |
| 2022 | −4.17% |
| 2021 | +26.35% |
| 2020 | +1.58% |
| 2019 (Sep–Dec) | +11.43% |
BRUMX 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 | +5.2% | +2.2% | −4.2% | +7.7% | +2.8% | — | — | — | — | — | — | — |
| 2025 | +5.0% | +0.2% | −2.6% | −2.8% | +3.8% | +3.7% | +0.4% | +2.9% | +1.9% | −0.9% | +1.8% | +1.1% |
| 2024 | +1.1% | +3.8% | +5.5% | −3.8% | +2.9% | −0.9% | +4.0% | +1.7% | +0.4% | −0.2% | +5.2% | −6.7% |
| 2023 | +5.5% | −3.2% | −1.5% | +1.5% | −3.3% | +6.7% | +3.7% | −2.8% | −3.1% | −2.4% | +7.5% | +6.2% |
| 2022 | −1.8% | −1.4% | +2.4% | −4.6% | +3.3% | −8.4% | +5.8% | −2.0% | −8.1% | +12.2% | +5.1% | −4.8% |
| 2021 | −1.1% | +6.5% | +6.3% | +4.4% | +2.2% | −0.5% | +0.9% | +2.1% | −4.0% | +5.2% | −4.0% | +6.5% |
| 2020 | −2.6% | −9.9% | −17.1% | +11.5% | +3.6% | −0.9% | +3.5% | +4.7% | −2.9% | −2.2% | +13.9% | +4.2% |
| 2019 | — | — | — | — | — | — | — | — | +4.0% | +1.9% | +2.6% | +2.5% |
BRUMX Risk
Risk measures from monthly returns over Jun 2023 – May 2026.
- 3-year volatility (annualised): 12.38%
- 3-year Sharpe ratio: 1.24 (vs 4.5% risk-free rate)
- Best month: +7.67% (Apr 2026)
- Worst month: −6.70% (Dec 2024)
BRUMX Fund Flows
Monthly money in and out of MFS Blended Research Value Equity Fund, from SEC Form N-PORT.
- 12-month net flow: −$4.9M
- 12-month gross sales (incl. reinvestments): $63.6M
- Sales ÷ redemptions: 0.93×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| May 2026 | $6.6M | $10.1M | −$3.5M |
| Apr 2026 | $3.0M | $4.1M | −$1.1M |
| Mar 2026 | $3.0M | $10.7M | −$7.6M |
| Feb 2026 | $2.2M | $7.1M | −$4.9M |
| Jan 2026 | $1.4M | $7.8M | −$6.4M |
| Dec 2025 | $36.4M | $7.0M | $29.3M |
| Nov 2025 | $1.2M | $4.9M | −$3.7M |
| Oct 2025 | $1.9M | $3.3M | −$1.5M |
| Sep 2025 | $1.2M | $1.7M | −$497K |
| Aug 2025 | $3.2M | $1.8M | $1.4M |
| Jul 2025 | $1.8M | $5.9M | −$4.1M |
| Jun 2025 | $1.7M | $4.1M | −$2.3M |
BRUMX Assets Under Management
Net assets of MFS Blended Research Value Equity Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-05-31 | $331.34M |
| 2026-02-28 | $325.08M |
| 2025-11-30 | $314.80M |
| 2025-08-31 | $311.65M |
| 2025-05-31 | $295.47M |
| 2025-02-28 | $295.77M |
| 2024-11-30 | $303.30M |
| 2024-08-31 | $298.54M |
| 2024-05-31 | $297.56M |
| 2024-02-29 | $285.42M |
| 2023-11-30 | $261.96M |
| 2023-08-31 | $255.29M |
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.