AGG vs PRIV

AGGAiShares Core U.S. Aggregate Bond ETF

PRIVDState Street IG Public & Private Credit ETF

In short

AGG Launched in 2003, one of the first funds to pack the entire U.S. investment-grade bond market into a single ticker: Treasuries, corporates and mortgage bonds, three basis points a year, cash paid monthly.

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

AGG The fund seeks to track the Bloomberg U.S. Aggregate Bond Index, providing broad exposure to the total U.S. investment-grade bond market.

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

• AGG 0.03% a year against a peer-group median near 0.36%. On a bond fund, the fee comes straight out of the coupon, so the gap matters more than it looks.
• A $100 billion-plus fund and very actively traded, the kind of depth that keeps bid-ask costs down for retail-sized orders.
• Tracks the Bloomberg U.S. Aggregate closely, with one of the tightest index-following records in its peer group. Income is distributed monthly.
• Running since 2003, giving it one of the longest track records among U.S. bond index ETFs.

• 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

• AGG Investment grade and U.S. dollar only. High-yield debt and foreign bonds sit outside the mandate, so this is designed as core ballast rather than a yield hunt.
• Rate risk comes as it comes. The index gets tracked whether yields rise or fall, with no manager stepping in to shorten duration.
• The same index is sold by SPAB, SCHZ and BBAG at the same 0.03%. The portfolio is the commodity here; scale and trading depth are the tiebreakers.

• 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 AGG profile⁠

Full PRIV profile⁠