FUSI Performance — American Century Multisector Floating Income ETF
Data updated: 2026-09-11
FUSI returned +1.96% year to date and +5.13% over one year to May 2026. The annualised 3-year return is +6.06%. The fund trailed its Ultrashort Securitized Bond category average: $100 invested three years ago grew to $119, against $122 for the category, and to $105 over one year, against $107. Volatility over the past three years was 0.51% a year. In the 12 months to May 2026 the fund lost a net $27.8M, and assets reached $22.74M.
FUSI Growth of $100
What $100 invested in American Century Multisector Floating Income ETF grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Ultrashort Securitized Bond category average over the same months.
| Period | FUSI | Category average |
|---|---|---|
| 1 year (Jun 2025 – May 2026) | $105 | $107 |
| 3 years (Jun 2023 – May 2026) | $119 | $122 |
| Since data start (Mar 2023 – May 2026) | $121 | $123 |
FUSI Trailing Returns
Total returns to May 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +1.96% |
| 1 year | +5.13% |
| 3 years (annualised) | +6.06% |
FUSI Annual Returns
Calendar-year total returns of American Century Multisector Floating Income ETF, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–May) | +1.96% |
| 2025 | +5.25% |
| 2024 | +6.48% |
| 2023 (Mar–Dec) | +5.96% |
FUSI 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 | +0.5% | +0.3% | +0.2% | +0.6% | +0.4% | — | — | — | — | — | — | — |
| 2025 | +0.5% | +0.4% | +0.3% | +0.3% | +0.7% | +0.5% | +0.4% | +0.5% | +0.4% | +0.4% | +0.3% | +0.5% |
| 2024 | +0.8% | +0.3% | +0.5% | +0.3% | +0.6% | +0.6% | +0.6% | +0.6% | +0.6% | +0.3% | +0.5% | +0.5% |
| 2023 | — | — | +0.3% | +0.6% | +0.6% | +0.7% | +0.7% | +0.6% | +0.5% | +0.4% | +0.7% | +0.7% |
FUSI Risk
Risk measures from monthly returns over Jun 2023 – May 2026.
- 3-year volatility (annualised): 0.51%
- 3-year Sharpe ratio: 3.07 (vs 4.5% risk-free rate)
- Best month: +0.78% (Jan 2024)
- Worst month: +0.20% (Mar 2026)
FUSI Fund Flows
Monthly money in and out of American Century Multisector Floating Income ETF, from SEC Form N-PORT.
- 12-month net flow: −$27.8M
- 12-month gross sales (incl. reinvestments): $0
- Sales ÷ redemptions: 0.00×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| May 2026 | $0 | $0 | $0 |
| Apr 2026 | $0 | $0 | $0 |
| Mar 2026 | $0 | $0 | $0 |
| Feb 2026 | $0 | $0 | $0 |
| Jan 2026 | $0 | $0 | $0 |
| Dec 2025 | $0 | $12.6M | −$12.6M |
| Nov 2025 | $0 | $15.1M | −$15.1M |
| Oct 2025 | $0 | $0 | $0 |
| Sep 2025 | $0 | $0 | $0 |
| Aug 2025 | $0 | $0 | $0 |
| Jul 2025 | $0 | $0 | $0 |
| Jun 2025 | $0 | $0 | $0 |
FUSI Assets Under Management
Net assets of American Century Multisector Floating Income ETF by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-05-31 | $22.74M |
| 2026-02-28 | $22.75M |
| 2025-11-30 | $35.45M |
| 2025-08-31 | $50.74M |
| 2025-05-31 | $50.70M |
| 2025-02-28 | $58.33M |
| 2024-11-30 | $58.45M |
| 2024-08-31 | $58.53M |
| 2024-05-31 | $20.29M |
| 2024-02-29 | $20.30M |
| 2023-11-30 | $20.24M |
| 2023-08-31 | $20.25M |
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.