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Wednesday, August 19, 2026The Morning Brief →Sign in

IUSBvsMBB

iShares Core Total USD Bond Market ETF against iShares MBS ETF — the fee, the flows, the book, and a year head-to-head.

One year, growth of $100
IUSB 99MBB 100Aug 25Aug 26GROWTH OF $100
Head to head
IUSBMBB
Expense ratio0.060%0.040%
Assets$43.4B$39B
Net flow, 1 month+$808M+$26M
Net flow, 1 year+$10.4B−$1B
Return, YTD-2.0%-1.7%
Return, 1 year
Avg daily volume3.2M2.1M
Holdings1617010895
ListedJun 9, 2014Mar 12, 2007
Options marketYesYes

MARKED CELLS LEAD ON THAT LINE · LOWER FEE, LARGER ASSETS, STRONGER FLOWS & RETURNS

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