See what your fund actually adds

Vanguard Federal Money Market Fund Investor Shares VMFXX

Historical return decomposition and an investable replication portfolio, using data through 2026-10-09.

Fund and replication metrics

VMFXX compared with its replication portfolio
MeasureVMFXXReplication
Annualized growth3.8%3.8%
Annualized volatility0.2%0.2%
Sharpe ratio15.8215.79
Maximum drawdown0.0%0.0%
Replication fit (R²)0.84 · Tracking error 0.1%

Replication portfolio

The published portfolio below is the investable basket used to model VMFXX’s historical return behavior.

VMFXX replication basket weights
TickerBuilding blockWeight
USFRFI · Floating Rate Notes50.2%
BILFI · Ultra-Short49.8%