BNDP vs IUSB

BNDPAVanguard Core-Plus Bond Index ETF

IUSBAiShares Core Universal USD Bond ETF

In short

BNDP The Agg with the leftovers added back. BNDP indexes a broad sweep of US dollar taxable bonds spanning investment-grade and high-yield, in a passive Vanguard wrapper priced at 0.05%.

IUSB Most core bond funds stop at investment grade. IUSB keeps going, folding high-yield USD debt into the same wrapper across roughly 18,000 bonds, for 0.06% a year.

Stated mandate

BNDP The fund seeks to track the Bloomberg U.S. Universal Float Adjusted Index, which consists of U.S. dollar-denominated taxable bonds rated as either investment-grade or high-yield.

IUSB The Fund seeks to track an index of U.S.-dollar-denominated bonds spanning investment-grade and high-yield sectors.

Why people hold it

• BNDP 0.05% a year, a fraction of what the typical fund in its bond category charges. In bonds, fee drag is the piece you actually control.
• The index reaches past the plain Agg: US dollar taxable bonds across both investment-grade and high-yield, so credit corners a core-only tracker skips come along.vanguard.com
• Rules-based, not manager discretion: it follows the Bloomberg U.S. Universal Float Adjusted Index, so the credit mix is disclosed by the index, not a quarterly judgment call.
• Cheaper than IUSB, the long-standing universal-index fund, at 0.05% versus 0.06%.

• IUSB 0.06% a year, a fraction of what the typical broad bond fund in its category charges, and iShares has run it since 2014.
• Roughly 18,000 bonds spanning investment-grade and high-yield sectors, so one ticker covers ground a plain Agg tracker leaves on the table.ishares.com
• Tracks its index closely, trades heavily, and sits on a multi-billion-dollar asset base. Income is paid monthly.
• Among the strongest implementations in a crowded field of nearly 200 core bond funds.

Worth knowing

• BNDP It listed in December 2025 and is still a small fund that trades lightly, so spreads can run wider than in the category's household names.
• The high-yield slice brings credit risk a pure investment-grade Agg tracker does not carry, and it tends to show up when credit markets wobble.
• Bare-bones Agg trackers like BND, SPAB and SCHZ charge 0.03%. The wider bond universe here costs a couple of basis points more.

• IUSB That high-yield sleeve is the trade-off: more credit risk than an investment-grade-only fund, and more movement when spreads widen.
• BND, SPAB and SCHZ charge 0.03%, half IUSB's fee, but they stay inside investment grade.
• Payouts land monthly, but the amount floats with the coupons underneath. Nothing about the income stream is fixed.

Full BNDP profile⁠

Full IUSB profile⁠