Generated July 2026 from current fund data.
Overview
BND and TLT are both fixed-income ETFs that track U.S. Treasury and bond indexes, but they target different maturity segments and credit profiles. BND holds the entire U.S. investment-grade bond market—Treasuries, mortgages, corporates, and agencies—while TLT focuses exclusively on U.S. Treasuries with 20+ year maturities. The key distinction is duration and credit risk: BND offers broad diversification across maturities and issuers; TLT offers concentrated long-duration Treasury exposure with meaningfully higher interest-rate sensitivity.
How they differ
The largest difference is asset composition. BND replicates the entire Bloomberg Aggregate Index, so it owns short-dated bonds, mortgage-backed securities, investment-grade corporates, and Treasuries across the curve. TLT holds only long-maturity Treasuries, which means it carries roughly 2.4x the interest-rate risk of the broader bond market—reflected in its beta of 2.4 versus BND's 0.98.
On yield, TLT offers 4.52% versus BND's 4.03%, a modest premium that reflects longer duration. Fees are negligible in both cases—BND's 0.03% expense ratio is marginally cheaper than TLT's 0.15%—but AUM tells a different story: BND is a $158B juggernaut, while TLT holds $40.7B. Both distribute monthly, so reinvestment frequency is identical.
Who each is best for
BND: Fits investors seeking a single broad bond-market holding that balances duration, credit quality, and simplicity—core portfolio ballast that doesn't require tilting toward Treasuries or corporates.
TLT: Designed for investors with a specific view on long-duration Treasury performance, a long time horizon to tolerate rate volatility, or a desire to express conviction about declining interest rates without buying individual bonds.
Key risks to know
- Duration risk and rate sensitivity. TLT's beta of 2.4 means it will lose roughly twice as much value as BND if Treasury yields rise 1%—a meaningful drawdown risk for investors in a hiking or sticky-inflation regime. BND's broader maturity ladder mitigates this.
- Yield-curve positioning. TLT's 4.52% yield on ultra-long Treasuries may reflect depressed front-end rates; if the curve steepens (short rates rise faster than long rates), TLT could underperform despite rising absolute yields.
- Credit-risk absence in TLT. TLT owns only U.S. Treasuries, which eliminates corporate and mortgage-credit risk. BND's exposure to investment-grade corporates and agency MBS introduces small but real credit spread risk—a benefit in stable markets, a cost if spreads widen sharply.
- Liquidity and size. BND's $158B AUM and lower expense ratio reflect deep institutional adoption; TLT, while substantial, is more specialized and may face wider bid-ask spreads during market stress.
Bottom line
If you want a single diversified bond holding with moderate interest-rate risk and broad credit exposure, BND's simplicity and scale stand out. If you're betting on long-term Treasury appreciation or want concentrated duration exposure, TLT's higher yield and singular focus justify its steeper rate sensitivity. Neither is "safe"—both move with Treasury yields—but they move at different speeds and serve different portfolio roles.
AI-generated analysis for educational purposes only. Verify important details independently; past performance does not guarantee future results.
