IUSB vs PRIV

IUSBAiShares Core Universal USD Bond ETF

PRIVDState Street IG Public & Private Credit 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.

PRIV Private credit usually comes with lockups. PRIV puts investment-grade public and private credit inside an ETF you can trade any market day, run actively against the Agg since its 2025 launch.

Stated mandate

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

PRIV PRIV is actively managed and invests primarily in investment-grade public and private credit. It seeks risk-adjusted returns and current income through macroeconomic allocation and bottom-up security selection.

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.

• PRIV Reaches into a corner of the bond market most ETFs skip: State Street's team buys investment-grade private credit alongside public bonds, in a wrapper that trades daily.ssga.com
• Fully active. Managers set the macro allocation and pick individual bonds against the Bloomberg U.S. Aggregate Bond Index rather than cloning it.
• Pays monthly and spreads the portfolio across roughly 400 positions, so no single borrower carries the fund.

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.

• PRIV 0.55% a year is above the 0.36% typical for core bond funds and a different world from 0.03% Agg trackers like AGG and SPAB. Sourcing private credit costs money.
• Launched in 2025, so the history is short and there is not much of a record to judge the private sleeve through a full credit cycle.
• Thinly traded next to the core bond giants. Spreads can be wider than the household names, which makes limit orders the sane default.

Full IUSB profile⁠

Full PRIV profile⁠