MFSMX Performance — MFS Maryland Municipal Bond Fund, Class A
Data updated: 2026-08-25
MFSMX returned +2.54% year to date and +7.55% over one year to Jun 2026. Annualised returns are +4.04% over 3 years and +0.85% over 5 years. Against its Long-Term Municipal Bond category average the fund came out ahead over three years but behind over one: $100 invested three years ago grew to $113, against $112 for the category, and to $108 over one year, against $108. Volatility over the past three years was 6.12% a year. In the 12 months to Jun 2026 the fund took in a net $14.7M, and assets reached $161.51M.
MFSMX Growth of $100
What $100 invested in MFS Maryland Municipal Bond Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Long-Term Municipal Bond category average over the same months.
| Period | MFSMX | Category average |
|---|---|---|
| 1 year (Jul 2025 – Jun 2026) | $108 | $108 |
| 3 years (Jul 2023 – Jun 2026) | $113 | $112 |
| 5 years (Jul 2021 – Jun 2026) | $104 | $103 |
| Since data start (Jul 2019 – Jun 2026) | $113 | $113 |
MFSMX Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +2.54% |
| 1 year | +7.55% |
| 3 years (annualised) | +4.04% |
| 5 years (annualised) | +0.85% |
MFSMX Annual Returns
Calendar-year total returns of MFS Maryland Municipal Bond Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | +2.54% |
| 2025 | +3.59% |
| 2024 | +1.93% |
| 2023 | +6.54% |
| 2022 | −9.93% |
| 2021 | +2.54% |
| 2020 | +3.97% |
| 2019 (Jul–Dec) | +1.99% |
MFSMX 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 | +0.4% | +1.4% | −2.2% | +1.3% | +0.7% | +1.0% | — | — | — | — | — | — |
| 2025 | +0.2% | +1.0% | −1.8% | −0.6% | −0.5% | +0.6% | −0.7% | +0.8% | +3.1% | +1.5% | +0.3% | 0.0% |
| 2024 | −0.1% | 0.0% | 0.0% | −1.2% | 0.0% | +2.1% | +0.8% | +0.7% | +1.1% | −1.4% | +1.6% | −1.4% |
| 2023 | +3.1% | −2.5% | +2.0% | +0.1% | −0.9% | +0.7% | +0.2% | −1.1% | −3.0% | −1.6% | +7.0% | +2.9% |
| 2022 | −2.2% | −0.6% | −3.0% | −3.0% | +1.2% | −2.4% | +2.9% | −2.6% | −4.3% | −0.8% | +4.9% | −0.2% |
| 2021 | +1.0% | −1.3% | +0.4% | +1.0% | +0.6% | +0.3% | +0.9% | −0.4% | −0.8% | −0.2% | +0.9% | +0.1% |
| 2020 | +1.8% | +1.2% | −5.1% | −2.1% | +3.0% | +1.5% | +1.6% | −0.3% | +0.1% | −0.3% | +1.8% | +0.9% |
| 2019 | — | — | — | — | — | — | +0.5% | +1.6% | −0.6% | 0.0% | +0.1% | +0.3% |
MFSMX Risk
Risk measures from monthly returns over Jul 2023 – Jun 2026.
- 3-year volatility (annualised): 6.12%
- 3-year Sharpe ratio: -0.08 (vs 4.5% risk-free rate)
- Best month: +6.99% (Nov 2023)
- Worst month: −3.02% (Sep 2023)
MFSMX Fund Flows
Monthly money in and out of MFS Maryland Municipal Bond Fund, from SEC Form N-PORT.
- 12-month net flow: $14.7M
- 12-month gross sales (incl. reinvestments): $41.4M
- Sales ÷ redemptions: 1.55×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $2.3M | $1.6M | $638K |
| May 2026 | $2.9M | $1.4M | $1.5M |
| Apr 2026 | $3.8M | $4.9M | −$1.1M |
| Mar 2026 | $3.6M | $2.2M | $1.4M |
| Feb 2026 | $2.5M | $2.0M | $528K |
| Jan 2026 | $3.4M | $1.6M | $1.8M |
| Dec 2025 | $3.6M | $2.2M | $1.5M |
| Nov 2025 | $3.3M | $1.5M | $1.8M |
| Oct 2025 | $3.1M | $2.3M | $743K |
| Sep 2025 | $5.0M | $2.8M | $2.2M |
| Aug 2025 | $3.5M | $1.9M | $1.6M |
| Jul 2025 | $4.3M | $2.2M | $2.1M |
MFSMX Assets Under Management
Net assets of MFS Maryland Municipal Bond Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $161.51M |
| 2026-03-31 | $157.18M |
| 2025-12-31 | $155.25M |
| 2025-09-30 | $149.95M |
| 2025-06-30 | $140.73M |
| 2025-03-31 | $136.04M |
| 2024-12-31 | $129.62M |
| 2024-09-30 | $129.32M |
| 2024-06-30 | $123.32M |
| 2024-03-31 | $119.46M |
| 2023-12-31 | $116.02M |
| 2023-09-30 | $120.35M |
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.