TLT vs BND: Which ETF Is Better in 2026?

What each is for. TLT tracks ICE US Treasury 20+ Year Bond Index and BND tracks Bloomberg US Aggregate Float Adjusted Index. These play different roles in a portfolio, so the useful question is what job you are hiring each for, not which has the better recent chart.

Income. TLT yields about ~4.55% and BND about ~3.94% (mid-2026). TLT pays more income, which matters if you are drawing from the portfolio; the other leans toward price growth.

Cost. 0.15% vs 0.03% ($15 vs $3 on $10,000 a year).

TLT tracks ICE US Treasury 20+ Year Bond Index, and BND tracks Bloomberg US Aggregate Float Adjusted Index. Because they follow different benchmarks, the two funds screen and weight their holdings differently, and that is what produces any gap in exposure, concentration, and return between them.

On construction, TLT is market-cap-weighted and BND is market-cap-weighted. They share a weighting approach, so any difference comes from the underlying index rather than the method.

So these two are answering different questions about your portfolio, which is why the choice is usually how much of each to hold rather than one instead of the other.

BND is the cheaper fund at 0.03% versus 0.15%, a gap of about $12 a year on a $10,000 holding. Because these funds hold different things, the cheaper fee is only one input; the exposure difference usually matters more than the cost gap.

On scale, TLT holds about ~$42.9 billion and BND about ~$394.4 billion. Larger funds generally trade at tighter bid-ask spreads and carry deeper options markets, which matters if you trade actively or in size; for buy-and-hold investors it rarely changes the outcome. TLT currently pays the higher dividend yield (~4.55% versus ~3.94%), which shifts more of its return into cash today.

These are complements, not rivals, so most investors hold both in different roles rather than choosing one. The broader or steadier fund typically works as a larger core position, while TLT, with its higher ~4.55% yield, suits a smaller satellite role for investors who specifically want that income or exposure. An income-focused or drawdown-sensitive investor weights toward the higher-yield side; a growth-focused, long-horizon investor weights toward the broader one.

These are descriptive profiles, not recommendations. What fits you depends on your goals, horizon, and what you already own. Walnut is not an investment adviser.

The overlap that decides most ETF purchases is not between TLT and BND, it is with what you already hold. ETF redundancy is invisible without looking through to the underlying holdings: you can already own most of TLT inside a broad fund like an S&P 500 or total-market ETF and not realize it.

This is the part a generic comparison cannot answer, because it depends on your account. Connect your brokerage and Walnut looks through your funds to show your real, combined exposure, flags how much of TLT or BND you already own elsewhere, and tells you whether adding either just buys the same companies twice, read-only by default, with your login staying at your broker. Walnut is not an investment adviser.

Holds US Treasury bonds maturing in 20 years or more, so its price swings sharply as long-term interest rates move: up when yields fall, down when they rise. It is used as a duration and recession hedge rather than a stable cash holding. Fee is 0.15%.

Full TLT guide

Holds thousands of US investment-grade bonds (Treasuries, agency, and corporate) across maturities, making it a one-fund core bond allocation. It adds ballast and income to an equity portfolio at a 0.03% fee, with price sensitivity to interest rates.

Full BND guide

These are complements, not rivals. Most investors hold the broader or lower-risk fund as a larger core and use the narrower or higher-yield one as a smaller satellite sized to the role they want it to play, rather than picking one and dropping the other. Decide the split deliberately.

For the full detail, see the TLT and BND guides.

Approximate as of mid-2026; verify with each issuer.

iShares (BlackRock) is the largest ETF issuer, with deep liquidity across its range. Vanguard is investor-owned and known for rock-bottom fees.

TLT and BND are different exposures, so the question is how much of each, not which is better. Either way, the decisive check is overlap with your real portfolio. Walnut can show that before you buy. It is not an investment adviser.