IUSB vs TAGG

IUSBAiShares Core Universal USD Bond ETF

TAGGAT. Rowe Price QM U.S. 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.

TAGG Active bond management at index-fund pricing. T. Rowe Price runs quant models plus human credit research across roughly 600 U.S. investment-grade bonds, aiming to beat the Agg rather than copy it, for 0.08% a year.

Stated mandate

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

TAGG The fund seeks total returns above the U.S. investment-grade bond market by investing primarily in U.S. bonds and using quantitative models alongside fundamental bond research.

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.

• TAGG 0.08% a year, a fraction of the typical fund in the aggregate-bond group and within shouting distance of plain index trackers. Rare pricing for an actively run portfolio.
• The mandate is to exceed the Bloomberg U.S. Aggregate Bond Index, not mirror it, using quantitative models alongside fundamental bond research.troweprice.com
• Roughly 600 investment-grade U.S. bonds under one ticker, with distributions paid monthly.
• Live since 2021 and now a multi-billion-dollar fund, and it does what its prospectus describes closely enough to rank among the stronger builds in a crowded core-bond field.

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.

• TAGG Active means drift. Sector and credit weights can sit away from the index, so returns can land on either side of the Agg.
• Straight index exposure to the same market costs less: BND, SPAB and SCHZ each charge 0.03%.
• It is a bond fund, so it moves with interest rates and carries credit risk, including possible loss of principal.troweprice.com

Full IUSB profile⁠

Full TAGG profile⁠