FMBIX Performance — Fidelity Municipal Bond Index Fund
Data updated: 2025-05-27
FMBIX returned +0.93% over one year to Mar 2025. Annualised returns are +0.93% over 3 years and +0.33% 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 $103, against $103 for the category, and to $101 over one year, against $101. Volatility over the past three years was 7.64% a year. In the 12 months to Mar 2025 the fund took in a net $22.7M, and assets reached $174.92M.
FMBIX Growth of $100
What $100 invested in Fidelity Municipal Bond Index 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 | FMBIX | Category average |
|---|---|---|
| 1 year (Apr 2024 – Mar 2025) | $101 | $101 |
| 3 years (Apr 2022 – Mar 2025) | $103 | $103 |
| 5 years (Apr 2020 – Mar 2025) | $102 | $105 |
| Since data start (Aug 2019 – Mar 2025) | $102 | $105 |
FMBIX Trailing Returns
Total returns to Mar 2025, from SEC N-PORT.
| Period | Total return |
|---|---|
| 1 year | +0.93% |
| 3 years (annualised) | +0.93% |
| 5 years (annualised) | +0.33% |
FMBIX Annual Returns
Calendar-year total returns of Fidelity Municipal Bond Index Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2025 (Jan–Mar) | −0.72% |
| 2024 | +1.30% |
| 2023 | +5.93% |
| 2022 | −9.42% |
| 2021 | +1.27% |
| 2020 | +3.10% |
| 2019 (Aug–Dec) | +1.10% |
FMBIX 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | +0.3% | +1.1% | −2.1% | — | — | — | — | — | — | — | — | — |
| 2024 | −0.2% | 0.0% | −0.1% | −1.2% | −0.4% | +1.7% | +0.9% | +0.9% | +1.1% | −1.5% | +1.7% | −1.3% |
| 2023 | +3.0% | −2.5% | +2.4% | −0.2% | −0.9% | +0.9% | +0.3% | −1.3% | −3.0% | −1.3% | +6.5% | +2.5% |
| 2022 | −2.6% | −0.6% | −3.0% | −3.2% | +1.5% | −2.0% | +2.7% | −2.5% | −3.8% | −0.8% | +4.9% | 0.0% |
| 2021 | +0.5% | −1.5% | +0.6% | +0.8% | +0.3% | +0.2% | +0.7% | −0.3% | −0.8% | −0.1% | +0.7% | +0.2% |
| 2020 | +1.6% | +1.2% | −3.6% | −2.6% | +3.2% | +0.8% | +1.4% | −0.3% | −0.1% | −0.2% | +1.3% | +0.6% |
| 2019 | — | — | — | — | — | — | — | +1.5% | −0.9% | 0.0% | +0.1% | +0.2% |
FMBIX Risk
Risk measures from monthly returns over Apr 2022 – Mar 2025.
- 3-year volatility (annualised): 7.64%
- 3-year Sharpe ratio: -0.47 (vs 4.5% risk-free rate)
- Best month: +6.48% (Nov 2023)
- Worst month: −3.79% (Sep 2022)
FMBIX Fund Flows
Monthly money in and out of Fidelity Municipal Bond Index Fund, from SEC Form N-PORT.
- 12-month net flow: $22.7M
- 12-month gross sales (incl. reinvestments): $74.1M
- Sales ÷ redemptions: 1.44×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Mar 2025 | $264K | $7.0M | −$6.7M |
| Feb 2025 | $4.6M | $4.1M | $547K |
| Jan 2025 | $10.5M | $4.9M | $5.6M |
| Dec 2024 | $6.4M | $3.9M | $2.5M |
| Nov 2024 | $3.9M | $4.5M | −$635K |
| Oct 2024 | $6.7M | $3.5M | $3.1M |
| Sep 2024 | $4.8M | $2.7M | $2.2M |
| Aug 2024 | $7.5M | $4.4M | $3.1M |
| Jul 2024 | $8.2M | $5.3M | $2.9M |
| Jun 2024 | $7.2M | $3.7M | $3.5M |
| May 2024 | $7.2M | $2.3M | $4.9M |
| Apr 2024 | $6.9M | $5.2M | $1.7M |
FMBIX Assets Under Management
Net assets of Fidelity Municipal Bond Index Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2025-03-31 | $174.92M |
| 2024-12-31 | $178.02M |
| 2024-09-30 | $176.24M |
| 2024-06-30 | $164.50M |
| 2024-03-31 | $155.32M |
| 2023-12-31 | $155.30M |
| 2023-09-30 | $146.08M |
| 2023-06-30 | $155.35M |
| 2023-03-31 | $153.35M |
| 2022-12-31 | $151.36M |
| 2022-09-30 | $134.57M |
| 2022-06-30 | $124.86M |
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.