Generated October 3, 2026.
Overview
SGOV and TLT are both Treasury-focused ETFs from iShares, but they operate at opposite ends of the maturity spectrum. SGOV holds U.S. Treasury bills maturing within three months, while TLT holds Treasury bonds maturing in 20+ years. This difference drives everything else: yield, interest-rate sensitivity, price stability, and risk profile.
How they differ
The core distinction is maturity exposure. SGOV tracks the ICE 0-3 Month U.S. Treasury Securities Index, making it functionally a money-market substitute with minimal interest-rate risk. TLT holds the ICE U.S. Treasury 20+ Year Bond Index, so it carries substantial duration risk and responds dramatically to rate moves. This shows up in beta: SGOV's beta is –0.0029 (nearly inert to equity market swings), while TLT's is 2.39 (moves sharply with long-rate volatility).
Yield reflects maturity as well. SGOV distributes 3.60%, while TLT yields 4.83% — a difference driven by the Treasury curve's slope, not fund management. SGOV holds $112B in assets, more than triple TLT's $45.8B, reflecting its appeal as a cash-like alternative.
Who each is best for
- SGOV: Fits investors seeking parking for cash reserves or emergency liquidity while earning current Treasury rates, with no appetite for price fluctuation or interest-rate timing risk.
- TLT: Fits investors building a core Treasury allocation who can tolerate meaningful price swings from rate moves and want to capture the yield step-up that comes with longer-duration exposure.
Key risks to know
- Duration risk in TLT. With a 20+ year underlying maturity, TLT's price swings sharply when long-term rates change. A 1% rise in the 20-year yield would pressure TLT's NAV substantially; SGOV faces no such exposure since it holds securities maturing within months.
- Yield compression and reinvestment in SGOV. At 3.60%, SGOV's yield tracks the short end of the Treasury curve closely. If short-rate policy changes, the distribution will follow with a lag; investors depending on steady income should verify the current rate environment.
- Rate environment assumption in TLT. A rising-rate regime would erode TLT's price, while falling rates could amplify gains. The fund's returns depend materially on directional interest-rate forecasts, unlike SGOV's more stable path.
Bottom line
If you want to hold Treasury exposure with minimal price volatility and steady short-term yield, SGOV fills that role. If you're comfortable with duration risk and seeking the higher yield that comes from longer-maturity bonds, TLT offers that trade-off. The choice hinges on your rate outlook and ability to tolerate price swings — not on which fund is "better," but on which risk profile aligns with your time horizon.
AI-generated analysis for educational purposes only. Verify important details independently; past performance does not guarantee future results.