WMBIX — Municipal Bond Fund
Data updated: 2026-05-27
WMBIX — Municipal Bond Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Long Municipal - National Bond · $8.78B AUM · 0.42% expense ratio · 6.3% 1-yr return. From SEC regulatory filings.
WMBIX Fund Overview
WMBIX — Municipal Bond Fund is a US mutual fund managed by Allspring Funds Trust, categorised as Long Municipal - National Bond. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: Allspring Funds Trust
- Category: Long Municipal - National Bond
- Assets under management: $8.78B
- 1-year return: 6.3%
- Ticker: WMBIX
- SEC CIK: 0001081400
- SEC series ID: S000007397
- Share class ID: C000064978
WMBIX Holdings
Top 10 holdings of Municipal Bond Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Regional Transportation District Sales Tax Revenue | 0.58% |
| County of Clark NV | 0.58% |
| Port of Portland OR Airport Revenue | 0.56% |
| San Francisco City & County Airport Comm-San Francisco International Airport | 0.55% |
| Southeast Energy Authority A Cooperative District | 0.55% |
| Northwest Independent School District | 0.53% |
| Texas Transportation Finance Corp | 0.49% |
| Texas Water Development Board | 0.48% |
| Metropolitan Pier & Exposition Authority | 0.48% |
| Fairfax County Industrial Development Authority | 0.47% |
WMBIX Portfolio Allocation
Asset-class allocation of Municipal Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 98.6% |
| Cash & Equivalents | 0.3% |
WMBIX Performance
Total returns for WMBIX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 2.6% |
| 1 year | 6.3% |
| 3 years (annualised) | 3.8% |
| 5 years (annualised) | 3.4% |
WMBIX Risk Information
Risk metrics for WMBIX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 2.7%
WMBIX Costs and Fees
WMBIX costs about $42 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.42%
- Gross expense ratio: 0.42%
- Portfolio turnover: 16%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
WMBIX Cashflows
Over the 12 months to 2026-03, Municipal Bond Fund had net inflows of $904.58M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-03 | $55.02M |
| 2026-02 | $198.73M |
| 2026-01 | $245.54M |
| 2025-12 | $1.40M |
| 2025-11 | $20.05M |
| 2025-10 | $85.17M |
WMBIX Debt Constituents
Largest debt holdings of Municipal Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| Regional Transportation District Sales Tax Revenue | 0.58% |
| County of Clark NV | 0.58% |
| Port of Portland OR Airport Revenue | 0.56% |
| San Francisco City & County Airport Comm-San Francisco International Airport | 0.55% |
| Southeast Energy Authority A Cooperative District | 0.55% |
| Northwest Independent School District | 0.53% |
| Texas Transportation Finance Corp | 0.49% |
| Texas Water Development Board | 0.48% |
| Metropolitan Pier & Exposition Authority | 0.48% |
| Fairfax County Industrial Development Authority | 0.47% |
WMBIX Prospectus and SEC Filings
Official Municipal Bond Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Long Municipal - National Bond funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.