IBDZ vs VBCA

IBDZBiShares iBonds Dec 2034 Term Corporate ETF

VBCAAVanguard Target Maturity 2027 Corporate Bond ETF

In short

IBDZ A far rung on the iBonds corporate ladder: roughly 400 investment-grade corporate bonds that all mature in 2034, in one ticker with a built-in end date. Ladder discipline, no CUSIP shopping.

VBCA Vanguard showed up late to the bond-ladder aisle and priced it accordingly: one rung of investment-grade corporate bonds, all maturing in 2027, wrapped in an ETF at 0.08%.

Stated mandate

IBDZ The fund seeks to track an index of investment-grade corporate bonds maturing in 2034.

VBCA The fund seeks to track a market-weighted index of U.S.-dollar-denominated, investment-grade corporate bonds that mature in 2027.

Why people hold it

• IBDZ Built like a bond, traded like a fund: it tracks the Bloomberg December 2034 Maturity Corporate Index and terminates at the end of its term year instead of rolling on forever.
• 0.10% a year, right at the middle of the target-maturity crowd, and it holds about 400 investment-grade corporates so no single issuer runs the show.
• Pays monthly, which suits people stacking rungs for a known future expense rather than watching a quarterly calendar.
• Tracking has been tight against its stated index, and the fund sits in the upper half of a target-maturity field of well over 100 competitors.

• VBCA At 0.08%, it undercuts the target-maturity norm, where iShares iBonds and Invesco BulletShares rungs run 0.10%.
• Its bonds are scheduled to mature between January 1 and December 15, 2027, and the index has a planned liquidation around that date, so duration winds down instead of resetting forever.sec.gov
• Market-weighted and investment-grade only: a single maturity year spread across the US corporate market rather than a handful of hand-picked bonds.
• Stands among the stronger implementations in a crowded target-maturity group, on cost and portfolio discipline.

Worth knowing

• IBDZ A 2034 maturity means far more interest-rate sensitivity than the near rungs of the same ladder, like the 2029 vintage (IBDU). Longer wait, bigger price swings along the way.
• Corporate credit, not government paper. Downgrades and defaults are live risks here in a way they are not for the Treasury version of the same ladder (IBTJ).
• Launched in 2024, so the track record is short, and it is moderately traded rather than a volume monster. Limit orders are your friend.

• VBCA Launched in 2026 and still small, it trades thinly; spreads can be wider than on established bond ETFs.
• Corporate credit, not Treasuries: downgrades and defaults come with the territory. Treasury-only rungs such as IBTJ sidestep that risk.
• Short operating history, so there is limited data so far on how closely it tracks its index.

Full IBDZ profile⁠

Full VBCA profile⁠