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State Street SPDR Portfolio Intermediate Term Treasury ETF SPTI
Historical return decomposition and an investable replication portfolio, using data through 2026-10-09.
Fund and replication metrics
| Measure | SPTI | Replication |
|---|---|---|
| Annualized growth | -0.3% | -0.3% |
| Annualized volatility | 5.2% | 5.1% |
| Sharpe ratio | -0.03 | -0.03 |
| Maximum drawdown | 13.4% | 13.4% |
| Replication fit (R²) | 1.00 · Tracking error 0.2% | |
Replication portfolio
The published portfolio below is the investable basket used to model SPTI’s historical return behavior.
| Ticker | Building block | Weight |
|---|---|---|
| VGIT | FI · Intermediate Gov | 100.0% |