IUSB vs WABF

IUSBAiShares Core Universal USD Bond ETF

WABFCWestern Asset 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.

WABF Western Asset has run bond money since 1971, and WABF is that core-plus playbook in ETF form: an actively picked book of roughly 400 US bonds, paid out monthly, with room to reach into high yield.

Stated mandate

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

WABF The Fund seeks to maximize total return while maintaining prudent investment management and meeting liquidity needs.

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.

• WABF Active, but with a leash: managers aim to keep average effective duration within 20% of the domestic bond market's, so security selection does the work rather than big rate bets.franklintempleton.com
• Up to 20% can sit in below-investment-grade bonds, and the fund intends to stay in US dollar securities, so the yield lever comes without currency exposure.businesswire.com
• A 0.35% expense ratio lands right at the aggregate-bond category median, unusual for a fund where a human team is making the calls.
• Income arrives monthly, and the portfolio hews closely to the broad US total-return mandate its prospectus describes.

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.

• WABF Index rivals BND, SPAB and SCHZ charge 0.03%. Active management here costs about ten times the cheapest route to core US bonds, a gap the manager has to earn back.
• Small asset base and light trading volume. Spreads can be wider than on the giant index funds, and limit orders are the norm in this corner of the market.
• That high-yield sleeve cuts both ways: credit stress can bite harder here than in a pure investment-grade index tracker.businesswire.com

Full IUSB profile⁠

Full WABF profile⁠