Vanguard 0-3 Month Treasury Bill ETF (VBIL) seeks to track an index of U.S. Treasury bills with remaining maturities of three months or less. This ultra-short duration fixed income ETF provides exposure to the safest government securities, offering capital preservation with minimal interest rate risk.

How It Works

VBIL uses a passively managed approach that holds actual U.S. Treasury bills issued by the federal government with maturities ranging from overnight to 90 days. The fund continuously rolls maturing securities into new short-term Treasury bills to maintain its target duration profile. Holdings are weighted by market value of outstanding Treasury bill issues. The portfolio typically contains 15-25 individual Treasury bill positions that mature and are replaced on a rolling basis.

Key Features

  • Zero expense ratio makes it one of the lowest-cost fixed income ETFs available, keeping more yield for investors
  • Ultra-short 0.08-0.25 year duration virtually eliminates interest rate risk while preserving principal in all market conditions
  • Backed by full faith and credit of U.S. government, providing highest possible credit quality and liquidity

Risks

  • This ETF can lose purchasing power during high inflation periods when Treasury bill yields fail to keep pace with rising prices
  • Rising interest rates benefit the fund as maturing bills reinvest at higher yields, but falling rates reduce income over time
  • Opportunity cost risk exists when stocks and longer-term bonds significantly outperform during economic growth periods, limiting total returns

Who Should Own This

Best suited for conservative investors seeking capital preservation with minimal volatility over short time horizons of days to months. Ideal as a cash alternative or defensive allocation (5-20% of portfolio) during market uncertainty. Low risk tolerance required, perfect for emergency funds or parking cash between investment decisions.