MIABX
MFS Inflation-Adjusted Bond Fund
MFS Series Trust IX

Average annual returns

Through 2025 · incl. N-PORT-derived 2025
1 year
5.32%
3 year
2.43%
5 year
-0.53%
10 year

Standardized average annual total returns (before tax), from calendar-year returns; recent years derived from N-PORT monthly data.

Calendar-year returns

2020 onward derived from N-PORT monthly returns

Risk statistics

78 months through Jan. 31, 2026
Volatility (ann.)
4.86%
Sharpe
0.40
Sortino
0.65
Max drawdown
-16.32%
Best month
4.12%
Worst month
-6.38%
Beta vs VBTLX
0.80
Correlation
0.95

Derived from N-PORT monthly total returns; distinct from the prospectus returns above.

Machine-readable: JSON · Markdown. Programmatic access via the agent surface.