Generated October 3, 2026.
Overview
BIL and USFR are both Treasury ETFs providing short-duration exposure with minimal credit risk, but they differ fundamentally in maturity and rate structure. BIL holds Treasury bills maturing in one to three months, while USFR holds longer-dated Treasury floating-rate notes that reset periodically based on current rates. The choice between them hinges on your view of rates and time horizon.
How they differ
BIL tracks bills with maturities under three months, meaning its holdings turn over frequently and reprice almost daily with shifts in overnight rates. USFR holds floating-rate Treasuries—longer instruments (typically two to ten years at issuance) whose coupons reset every few months to track a reference rate, usually the Treasury bill rate. The biggest structural difference is maturity: BIL resets fully every few months; USFR resets in coupon only, leaving duration exposure.
USFR's 3.77% yield exceeds BIL's 3.45% by 0.32% percentage points—a gap that reflects USFR's longer maturity premium and the floating-rate structure's embedded spread over bills. On costs, BIL's 0.1353% is cheaper than USFR's 0.15%—a 0.01% basis-point difference that matters little in absolute terms but signals BIL's simpler mechanics. BIL also has a much larger asset base at $48.1B, compared to USFR's $19.6B.
Who each is best for
BIL: Fits investors seeking the closest substitute to a money-market fund with daily liquidity and zero interest-rate duration risk—ideal for parking cash reserves or funding near-term spending.
USFR: Designed for investors comfortable holding slightly longer Treasuries and willing to accept minimal duration exposure in exchange for a yield pickup, particularly when the Fed is holding rates steady or cuts gradually.
Key risks to know
- Duration mismatch in rising-rate environments. USFR holds instruments with longer average maturity than BIL, so if short rates stay flat or fall while longer rates rise, USFR could underperform BIL. The inverse is also true—in a declining-rate scenario, USFR may outpace BIL due to its embedded duration.
- Floating-rate coupon reset lag. USFR's coupons reset periodically (typically monthly or quarterly) rather than continuously. If the Fed cuts rates sharply between reset dates, USFR holders may miss downside protection briefly, whereas BIL's holdings mature and reinvest immediately.
- Price volatility in secondary trading. Although both funds are Treasury-backed with minimal credit risk, USFR's longer duration means its ETF share price can fluctuate more in secondary markets if bid-ask spreads widen or liquidity dries up during stress. BIL's bills-only structure keeps its price closer to par and more stable.
- Reinvestment-rate risk for BIL. With bills turning over frequently, BIL holders reinvest principal into whatever short rates prevail at each maturity. In a declining-rate environment, reinvested proceeds capture lower yields.
Bottom line
If you want the safest cash equivalent with minimal duration risk and lowest fees, BIL's bill-only mandate and 0.1353% expense ratio appeal to that profile; if you can tolerate some rate sensitivity and want 3.77% yield, USFR's floating-rate structure offers a modest pickup. Neither involves credit risk, so the choice depends on whether you prioritize ultimate stability or a higher coupon. Past performance does not predict future results.
AI-generated analysis for educational purposes only. Verify important details independently; past performance does not guarantee future results.
