See what your fund actually adds
American Century Ultrashort Income ETF FUSI
Historical return decomposition and an investable replication portfolio, using data through 2026-10-09.
Fund and replication metrics
| Measure | FUSI | Replication |
|---|---|---|
| Annualized growth | 5.9% | 4.5% |
| Annualized volatility | 0.4% | 0.3% |
| Sharpe ratio | 14.06 | 13.60 |
| Maximum drawdown | 0.2% | 0.0% |
| Replication fit (R²) | 0.30 · Tracking error 0.3% | |
Replication portfolio
The published portfolio below is the investable basket used to model FUSI’s historical return behavior.
| Ticker | Building block | Weight |
|---|---|---|
| BIL | FI · Ultra-Short | 75.6% |
| VGSH | FI · Short Gov | 17.5% |
| BKLN | FI · Senior Bank Loans | 6.9% |