See what your fund actually adds
MFS Total Return Bond Fund Class A MRBFX
Historical return decomposition and an investable replication portfolio, using data through 2026-10-09.
Fund and replication metrics
| Measure | MRBFX | Replication |
|---|---|---|
| Annualized growth | -0.2% | -0.5% |
| Annualized volatility | 5.7% | 5.8% |
| Sharpe ratio | -0.01 | -0.06 |
| Maximum drawdown | 18.1% | 17.2% |
| Replication fit (R²) | 0.98 · Tracking error 0.9% | |
Replication portfolio
The published portfolio below is the investable basket used to model MRBFX’s historical return behavior.
| Ticker | Building block | Weight |
|---|---|---|
| AGG | FI · Aggregate | 100.0% |