Generated June 2026 from current fund data.
Overview
BND and TLT are both Treasury-heavy fixed-income ETFs, but they target opposite ends of the duration spectrum. BND tracks the broad U.S. bond market across all maturities and credit qualities, while TLT focuses exclusively on long-dated Treasuries with 20-plus-year maturities. The key distinction: BND is a core holding for diversified bond exposure; TLT is a duration bet that amplifies interest-rate sensitivity.
How they differ
The biggest difference is maturity and diversification. BND holds the full spectrum of investment-grade bonds—Treasuries, mortgages, corporates, and agencies—while TLT owns only long-term Treasury paper. This means TLT has roughly 2.4 times the interest-rate sensitivity of BND, reflected in its beta of 2.38 versus BND's 0.98.
TLT yields more: 4.62% versus BND's 4.03%, the result of longer duration and higher reinvestment risk rather than credit pickup. BND's 0.03% expense ratio is five times cheaper than TLT's 0.15%, and BND's $158B in assets dwarf TLT's $40.7B. Both pay monthly, but the yield floor is structurally different—TLT's income depends on long-term Treasury rates, while BND benefits from credit spreads and mortgage coupons that cushion it in a flat-to-falling rate environment.
Who each is best for
BND: Fits investors who want a low-cost, market-weight bond allocation with built-in diversification across Treasuries, corporates, and mortgages, and who expect to hold bonds as a stable portfolio ballast rather than a rate-directional trade.
TLT: Fits investors who believe longer-dated Treasury yields offer value or who want explicit long-duration exposure in a falling-rate scenario, and who are comfortable with significant NAV swings tied to 10-year and 20-year yield moves.
Key risks to know
- Interest-rate duration risk. TLT's beta of 2.38 means a 1% rise in long yields could cut its NAV by roughly 24%, while BND's broader-based portfolio would lose around 10%. This asymmetry intensifies in a rising-rate environment.
- Yield sustainability tied to Treasury rates. TLT's 4.62% distribution depends on long-term Treasury coupons; if the 20-year yield falls sharply, distributions and NAV both compress. BND's income is more resilient because corporate and mortgage spreads can offset Treasury weakness.
- Reinvestment timing. TLT's concentration in a single maturity band means coupon reinvestment happens at whatever rates prevail; in a lower-rate backdrop, forward income could slip. BND's diversified maturity ladder provides natural staggering.
- Credit spread narrowing. BND holds investment-grade corporate and agency bonds whose spreads can tighten in a risk-on rally, capping upside; TLT has no spread exposure to benefit from widening.
Bottom line
If you want a core, diversified bond holding with minimal volatility and the lowest possible fees, BND is the natural scaffold. If you're positioning for falling rates or want explicit long-duration Treasury exposure and can tolerate sharp NAV moves, TLT's higher yield and duration come with that trade-off. 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.