WTAIX Performance — Wilmington Municipal Bond Fund, Class I
Data updated: 2026-09-24
WTAIX returned −0.27% year to date and +3.51% over one year to Jul 2026. Annualised returns are +2.89% over 3 years and +0.47% over 5 years. The fund trailed its Intermediate Municipal Bond category average: $100 invested three years ago grew to $109, against $109 for the category, and to $104 over one year, against $105. Volatility over the past three years was 4.64% a year. In the 12 months to Jul 2026 the fund took in a net $10.5M, and assets reached $364.50M.
WTAIX Growth of $100
What $100 invested in Wilmington 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 | WTAIX | Category average |
|---|---|---|
| 1 year (Aug 2025 – Jul 2026) | $104 | $105 |
| 3 years (Aug 2023 – Jul 2026) | $109 | $109 |
| 5 years (Aug 2021 – Jul 2026) | $102 | $102 |
| Since data start (Aug 2019 – Jul 2026) | $108 | $109 |
WTAIX Trailing Returns
Total returns to Jul 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | −0.27% |
| 1 year | +3.51% |
| 3 years (annualised) | +2.89% |
| 5 years (annualised) | +0.47% |
WTAIX Annual Returns
Calendar-year total returns of Wilmington Municipal Bond Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jul) | −0.27% |
| 2025 | +4.82% |
| 2024 | +1.16% |
| 2023 | +5.39% |
| 2022 | −7.60% |
| 2021 | +0.83% |
| 2020 | +2.77% |
| 2019 (Aug–Dec) | +1.17% |
WTAIX 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 | +0.9% | +1.0% | −2.3% | +0.9% | +0.2% | +0.5% | −1.5% | — | — | — | — | — |
| 2025 | +0.5% | +0.9% | −1.4% | −0.4% | +0.3% | +0.8% | +0.1% | +0.9% | +1.5% | +0.9% | +0.2% | +0.2% |
| 2024 | −0.3% | 0.0% | 0.0% | −1.0% | −0.4% | +1.2% | +0.9% | +0.8% | +0.9% | −1.2% | +1.2% | −0.9% |
| 2023 | +2.7% | −2.0% | +1.9% | −0.2% | −0.9% | +0.7% | +0.3% | −0.9% | −2.5% | −0.8% | +5.0% | +2.3% |
| 2022 | −2.7% | −0.6% | −2.9% | −2.4% | +1.1% | −1.0% | +2.4% | −1.9% | −3.0% | −0.5% | +3.6% | +0.3% |
| 2021 | +0.6% | −1.5% | +0.4% | +0.8% | +0.2% | +0.1% | +0.7% | −0.2% | −0.8% | −0.2% | +0.6% | +0.1% |
| 2020 | +1.8% | +1.2% | −5.2% | −1.5% | +3.0% | +1.0% | +1.6% | −0.1% | −0.1% | −0.1% | +1.0% | +0.5% |
| 2019 | — | — | — | — | — | — | — | +1.5% | −0.9% | +0.1% | +0.1% | +0.4% |
WTAIX Risk
Risk measures from monthly returns over Aug 2023 – Jul 2026.
- 3-year volatility (annualised): 4.64%
- 3-year Sharpe ratio: -0.35 (vs 4.5% risk-free rate)
- Best month: +5.03% (Nov 2023)
- Worst month: −2.46% (Sep 2023)
WTAIX Fund Flows
Monthly money in and out of Wilmington Municipal Bond Fund, from SEC Form N-PORT.
- 12-month net flow: $10.5M
- 12-month gross sales (incl. reinvestments): $69.1M
- Sales ÷ redemptions: 1.18×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jul 2026 | $5.5M | $3.4M | $2.1M |
| Jun 2026 | $5.6M | $8.8M | −$3.3M |
| May 2026 | $9.0M | $5.2M | $3.7M |
| Apr 2026 | $3.6M | $4.0M | −$359K |
| Mar 2026 | $3.0M | $5.1M | −$2.1M |
| Feb 2026 | $4.7M | $2.4M | $2.2M |
| Jan 2026 | $6.0M | $5.8M | $184K |
| Dec 2025 | $5.7M | $5.6M | $158K |
| Nov 2025 | $5.2M | $4.1M | $1.1M |
| Oct 2025 | $7.4M | $4.7M | $2.7M |
| Sep 2025 | $5.3M | $2.9M | $2.4M |
| Aug 2025 | $8.1M | $6.6M | $1.6M |
WTAIX Assets Under Management
Net assets of Wilmington Municipal Bond Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-07-31 | $364.50M |
| 2026-04-30 | $366.93M |
| 2026-01-30 | $371.35M |
| 2025-10-31 | $367.28M |
| 2025-07-31 | $351.38M |
| 2025-04-30 | $335.81M |
| 2025-01-31 | $316.74M |
| 2024-10-31 | $318.22M |
| 2024-07-31 | $321.07M |
| 2024-04-30 | $314.89M |
| 2024-01-31 | $317.16M |
| 2023-10-31 | $319.56M |
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.