WMBIX Performance — Allspring Municipal Bond Fund, Institutional Class
Data updated: 2026-09-08
WMBIX returned +4.79% year to date and +8.97% over one year to Jun 2026. Annualised returns are +4.44% over 3 years and +3.85% over 5 years. The fund beat its Intermediate Municipal Bond category average: $100 invested three years ago grew to $114, against $111 for the category, and to $109 over one year, against $106. Volatility over the past three years was 4.71% a year. In the 12 months to Jun 2026 the fund took in a net $1.6B, and assets reached $9.78B.
WMBIX Growth of $100
What $100 invested in Allspring Municipal Bond Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Intermediate Municipal Bond category average over the same months.
| Period | WMBIX | Category average |
|---|---|---|
| 1 year (Jul 2025 – Jun 2026) | $109 | $106 |
| 3 years (Jul 2023 – Jun 2026) | $114 | $111 |
| 5 years (Jul 2021 – Jun 2026) | $121 | $105 |
| Since data start (Jul 2019 – Jun 2026) | $121 | $112 |
WMBIX Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +4.79% |
| 1 year | +8.97% |
| 3 years (annualised) | +4.44% |
| 5 years (annualised) | +3.85% |
WMBIX Annual Returns
Calendar-year total returns of Allspring Municipal Bond Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | +4.79% |
| 2025 | +3.07% |
| 2024 | +2.46% |
| 2023 | +5.85% |
| 2022 | +3.12% |
| 2021 | +0.02% |
| 2020 | +0.04% |
| 2019 (Jul–Dec) | +0.02% |
WMBIX 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 | +0.7% | +1.2% | +0.7% | +1.0% | +0.4% | +0.7% | — | — | — | — | — | — |
| 2025 | +0.1% | +0.9% | −1.5% | −0.7% | −0.3% | +0.6% | −0.4% | +0.8% | +2.2% | +1.0% | +0.2% | +0.1% |
| 2024 | +0.1% | +0.1% | +0.2% | −0.8% | 0.0% | +1.3% | +0.8% | +0.7% | +1.0% | −1.2% | +1.5% | −1.0% |
| 2023 | +2.6% | −1.9% | +1.7% | +0.2% | −0.6% | +0.8% | +0.3% | −1.2% | −2.4% | −1.3% | +5.7% | +2.1% |
| 2022 | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | −1.0% | +4.3% | +0.1% |
| 2021 | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |
| 2020 | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |
| 2019 | — | — | — | — | — | — | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |
WMBIX Risk
Risk measures from monthly returns over Jul 2023 – Jun 2026.
- 3-year volatility (annualised): 4.71%
- 3-year Sharpe ratio: -0.01 (vs 4.5% risk-free rate)
- Best month: +5.65% (Nov 2023)
- Worst month: −2.44% (Sep 2023)
WMBIX Fund Flows
Monthly money in and out of Allspring Municipal Bond Fund, from SEC Form N-PORT.
- 12-month net flow: $1.6B
- 12-month gross sales (incl. reinvestments): $3.3B
- Sales ÷ redemptions: 1.98×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $167.3M | $121.0M | $46.3M |
| May 2026 | $929.1M | $123.7M | $805.5M |
| Apr 2026 | $163.7M | $141.8M | $21.9M |
| Mar 2026 | $198.3M | $143.3M | $55.0M |
| Feb 2026 | $338.9M | $140.1M | $198.7M |
| Jan 2026 | $352.9M | $107.3M | $245.5M |
| Dec 2025 | $194.1M | $192.7M | $1.4M |
| Nov 2025 | $119.8M | $99.8M | $20.1M |
| Oct 2025 | $207.5M | $122.4M | $85.2M |
| Sep 2025 | $181.9M | $170.3M | $11.6M |
| Aug 2025 | $169.3M | $135.8M | $33.6M |
| Jul 2025 | $296.2M | $178.6M | $117.6M |
WMBIX Assets Under Management
Net assets of Allspring Municipal Bond Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $9.78B |
| 2026-03-31 | $8.78B |
| 2025-12-31 | $8.34B |
| 2025-09-30 | $8.20B |
| 2025-06-30 | $7.89B |
| 2025-03-31 | $7.85B |
| 2024-12-31 | $8.02B |
| 2024-09-30 | $7.96B |
| 2024-06-30 | $6.82B |
| 2024-03-31 | $6.75B |
| 2023-12-31 | $6.71B |
| 2023-09-30 | $5.71B |
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.