IBDW vs VBCB

IBDWBiShares iBonds Dec 2031 Term Corporate ETF

VBCBAVanguard Target Maturity 2028 Corporate Bond ETF

In short

IBDW A bond ladder rung in ETF form: roughly 600 investment-grade corporate bonds all maturing in 2031, monthly income along the way, then the fund pays out its assets and closes. Individual-bond behavior without the work of picking individual bonds.

VBCB Vanguard finally showed up to the bond-ladder party. VBCB owns U.S. investment-grade corporate bonds that all mature in 2028, and it undercuts the typical target-maturity rung on fees.

Stated mandate

IBDW Seeks to track an index of corporate bonds maturing in 2031 and is structured as a term ETF that will distribute its assets and terminate at or about the funds' maturity date.

VBCB The fund seeks to track a market-weighted index of U.S.-dollar-denominated, investment-grade corporate bonds that mature in 2028.

Why people hold it

• IBDW Behaves like one big bond with a 2031 maturity. It tracks an index of corporates maturing that year, then distributes assets and terminates, so there is a defined end date.ishares.com
• Credit risk is spread across roughly 600 corporate bonds, so a single wobbly borrower is a rounding error rather than a hole in the portfolio.
• Costs 0.10% a year, the going rate in target-maturity land, and it has hugged its Bloomberg index closely since launching in 2021.
• Pays monthly, trades actively, and runs several billion in assets: one of the stronger builds in a crowded target-maturity peer group.

• VBCB Charges 0.08% a year, below the 0.10% typical for target-maturity bond funds and below the iBonds and BulletShares rungs (IBDU, BSCT, BSCU) it lines up against.
• Every bond in the index is dollar-denominated investment grade maturing in 2028: one rung of a bond ladder in one ticker, with income paid quarterly.
• A plain market-weighted ICE index run through Vanguard's index plumbing, and one of the stronger builds in the target-maturity bond group.

Worth knowing

• IBDW These are corporate bonds, so you are paid for taking credit risk. Treasury rungs from the same family, like IBTJ, skip that trade-off and cost 0.07%.
• A 2031 maturity sits further out than the near-dated rungs, so the share price swings more when rates move. Selling early means taking the market price, not the maturity payout.
• It ends. When the fund winds up, the money lands back in your account, so a ladder built this way needs a reinvestment plan for the year it matures.ishares.com

• VBCB Launched in 2026 and still small, it trades thinly, so spreads can run wider than on the long-established corporate ladders.
• Corporate credit, not Treasuries. Investment grade lowers the odds of trouble, but downgrades and defaults stay in the mix.
• One maturity year, not a whole curve. This is a rung, not a stand-in for a broad bond fund.

Full IBDW profile⁠

Full VBCB profile⁠