See what your fund actually adds
Fidelity SAI Intermediate Treasury Bond Index Fund FSIWX
Historical return decomposition and an investable replication portfolio, using data through 2026-10-09.
Fund and replication metrics
| Measure | FSIWX | Replication |
|---|---|---|
| Annualized growth | -0.0% | -0.1% |
| Annualized volatility | 4.9% | 4.8% |
| Sharpe ratio | 0.02 | 0.01 |
| Maximum drawdown | 5.7% | 5.3% |
| Replication fit (R²) | 0.99 · Tracking error 0.5% | |
Replication portfolio
The published portfolio below is the investable basket used to model FSIWX’s historical return behavior.
| Ticker | Building block | Weight |
|---|---|---|
| VGIT | FI · Intermediate Gov | 74.6% |
| SPTL | FI · Long Gov | 12.1% |
| MBB | FI · MBS | 8.8% |
| AGG | FI · Aggregate | 4.5% |