VGLT vs XTWY

VGLTAVanguard Long-Term Treasury ETF

XTWYBBondBloxx Bloomberg Twenty Year Target Duration US Treasury ETF

In short

VGLT Three basis points for the long end of the Treasury curve. VGLT tracks a market-weighted index of long-dated government bonds, pays income monthly, and charges a fraction of what this category typically costs.

XTWY Most long Treasury funds sort bonds by maturity and let duration drift. XTWY aims at a constant 20-year duration, rebalanced monthly, so the interest-rate dial stays where you set it.

Stated mandate

VGLT The fund seeks to track a market-weighted Treasury index with a long-term dollar-weighted average maturity. It uses index sampling and invests at least 80% of assets in securities included in the target index.

XTWY The fund seeks to track an index of U.S. Treasury securities whose duration ranges from 18 to 22 years.

Why people hold it

• VGLT 0.03% a year, a fifth of TLT's 0.15% and the lowest fee among its long-Treasury peers.vanguard.com
• Sticks to the mandate: index sampling of the Bloomberg U.S. Long Treasury Bond Index, with at least 80% of assets in index securities and one of the tightest implementations in its group.vanguard.com
• Pure US Treasury paper, roughly 70 bonds, no corporate credit risk in the mix, with distributions paid monthly.vanguard.com
• A multi-billion-dollar fund that trades actively, which generally keeps bid-ask spreads modest for a long-bond vehicle.

• XTWY The index straddles a 20-year duration target and the portfolio rebalances monthly, so rate sensitivity is held near a set level instead of sliding as bonds age.sec.govbondbloxxetf.com
• At 0.13% a year it undercuts the typical long-Treasury fund in its group, and it pays monthly.
• Toolkit piece, not a one-off: the long end of a target-duration Treasury lineup that steps from six months out to twenty years.bondbloxxetf.com
• Nothing exotic under the hood: US Treasury notes, bonds and principal-only STRIPS in a standard 1940-Act ETF, live since 2022.sec.gov

Worth knowing

• VGLT Duration is the point and the risk. Long maturities mean prices swing hard when long-term yields move, in both directions.
• Not a 20-year-and-out pure play. The benchmark is the broad long Treasury index, so duration runs shorter than TLT or BBLB and shorter still than sibling EDV.
• Fixed coupons from a government issuer: no credit spread to earn, and inflation erodes the real value of that income.

• XTWY Twenty years of duration cuts both ways. Price swings when yields move are large by design, and pinning duration means that sensitivity does not fade over time.sec.gov
• Cheap for the group, not the cheapest: VGLT (0.03%) and BBLB (0.04%) charge a fraction of it for maturity-bucket long Treasury exposure.
• A smaller, moderately traded fund next to giants like TLT, so trading costs deserve a look before sizing a position.

Full VGLT profile⁠

Full XTWY profile⁠