TAXF Performance — American Century Diversified Municipal Bond ETF
Data updated: 2026-07-31
TAXF returned +1.68% year to date and +7.14% over one year to May 2026. Annualised returns are +4.17% over 3 years and +1.10% over 5 years. The fund beat its Intermediate Municipal Bond category average: $100 invested three years ago grew to $113, against $111 for the category, and to $107 over one year, against $106. Volatility over the past three years was 5.35% a year. In the 12 months to May 2026 the fund took in a net $148.2M, and assets reached $659.46M.
TAXF Growth of $100
What $100 invested in American Century Diversified Municipal Bond ETF grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Intermediate Municipal Bond category average over the same months.
| Period | TAXF | Category average |
|---|---|---|
| 1 year (Jun 2025 – May 2026) | $107 | $106 |
| 3 years (Jun 2023 – May 2026) | $113 | $111 |
| 5 years (Jun 2021 – May 2026) | $106 | $104 |
| Since data start (Sep 2019 – May 2026) | $113 | $109 |
TAXF Trailing Returns
Total returns to May 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +1.68% |
| 1 year | +7.14% |
| 3 years (annualised) | +4.17% |
| 5 years (annualised) | +1.10% |
TAXF Annual Returns
Calendar-year total returns of American Century Diversified Municipal Bond ETF, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–May) | +1.68% |
| 2025 | +4.22% |
| 2024 | +2.05% |
| 2023 | +6.52% |
| 2022 | −9.13% |
| 2021 | +2.88% |
| 2020 | +5.47% |
| 2019 (Sep–Dec) | −0.09% |
TAXF 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 | +0.8% | +1.4% | −2.3% | +1.2% | +0.6% | — | — | — | — | — | — | — |
| 2025 | +0.4% | +1.0% | −1.7% | −0.6% | −0.2% | +0.7% | −0.4% | +0.8% | +2.5% | +1.2% | +0.3% | +0.1% |
| 2024 | 0.0% | +0.1% | 0.0% | −1.0% | −0.1% | +1.6% | +0.9% | +0.7% | +1.1% | −1.4% | +1.5% | −1.2% |
| 2023 | +2.9% | −2.2% | +2.0% | 0.0% | −0.8% | +0.9% | +0.2% | −1.1% | −2.6% | −1.2% | +6.0% | +2.5% |
| 2022 | −2.7% | −0.6% | −3.0% | −2.7% | +1.4% | −1.8% | +2.6% | −2.4% | −3.7% | −0.8% | +4.5% | −0.1% |
| 2021 | +1.1% | −1.3% | +0.6% | +1.1% | +0.5% | +0.4% | +0.8% | −0.4% | −0.8% | −0.1% | +0.9% | +0.1% |
| 2020 | +2.0% | +1.5% | −6.1% | −1.7% | +3.4% | +1.9% | +2.1% | −0.1% | 0.0% | −0.2% | +1.7% | +1.1% |
| 2019 | — | — | — | — | — | — | — | — | −0.9% | +0.1% | +0.2% | +0.4% |
TAXF Risk
Risk measures from monthly returns over Jun 2023 – May 2026.
- 3-year volatility (annualised): 5.35%
- 3-year Sharpe ratio: -0.06 (vs 4.5% risk-free rate)
- Best month: +6.00% (Nov 2023)
- Worst month: −2.65% (Sep 2023)
TAXF Fund Flows
Monthly money in and out of American Century Diversified Municipal Bond ETF, from SEC Form N-PORT.
- 12-month net flow: $148.2M
- 12-month gross sales (incl. reinvestments): $167.8M
- Sales ÷ redemptions: 8.56×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| May 2026 | $30.2M | $0 | $30.2M |
| Apr 2026 | $17.6M | $0 | $17.6M |
| Mar 2026 | $42.7M | $0 | $42.7M |
| Feb 2026 | $10.2M | $0 | $10.2M |
| Jan 2026 | $5.0M | $0 | $5.0M |
| Dec 2025 | $17.6M | $0 | $17.6M |
| Nov 2025 | $10.1M | $0 | $10.1M |
| Oct 2025 | $7.6M | $0 | $7.6M |
| Sep 2025 | $14.7M | $0 | $14.7M |
| Aug 2025 | $0 | $0 | $0 |
| Jul 2025 | $12.2M | $12.3M | −$73K |
| Jun 2025 | $0 | $7.3M | −$7.3M |
TAXF Assets Under Management
Net assets of American Century Diversified Municipal Bond ETF by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-05-31 | $659.46M |
| 2026-02-28 | $576.85M |
| 2025-11-30 | $536.25M |
| 2025-08-31 | $488.19M |
| 2025-05-31 | $494.93M |
| 2025-02-28 | $527.30M |
| 2024-11-30 | $508.01M |
| 2024-08-31 | $476.13M |
| 2024-05-31 | $435.36M |
| 2024-02-29 | $408.39M |
| 2023-11-30 | $358.89M |
| 2023-08-31 | $340.20M |
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.