IUSB vs VCRB

IUSBAiShares Core Universal USD Bond ETF

VCRBAVanguard Core Bond ETF

In short

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.

VCRB Vanguard's active answer to its own index bond giant: VCRB roams the US investment-grade market looking to beat the Bloomberg US Aggregate Float Adjusted Index, and charges 0.10% to try.

Stated mandate

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

VCRB The fund seeks to outperform the broad U.S. investment-grade fixed-income market, measured by the Bloomberg US Aggregate Float Adjusted Index, by investing across fixed-income securities with different maturities, yields, and qualities.

Why people hold it

• 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.

• VCRB Active management at near-index pricing: 0.10% a year, against a typical core-bond fee closer to 0.36%.
• Clear scorecard. It is measured against the same Bloomberg US Aggregate Float Adjusted Index that Vanguard's index fund BND simply tracks, so the active bet is easy to judge.
• Wide net: roughly 1,600 bonds across different maturities, yields and credit qualities, with income paid monthly.
• Already a multi-billion-dollar, actively traded fund, which is rare for a young active bond ETF.

Worth knowing

• 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.

• VCRB Active means human calls. Returns can drift from the benchmark in either direction, unlike the index route BND takes at 0.03%.
• US investment-grade only. No international sleeve, no high-yield kicker, and like any core bond fund it moves with interest rates.
• Launched December 2023, so its live record is short next to core bond funds with decades behind them.

Full IUSB profile⁠

Full VCRB profile⁠