IUSB · iShares Core Universal USD Bond ETF
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IUSB tracks an index of Universal USD Bond and returned −1.2% over the past year.
IUSB returned −1.2% over the year to Oct 28, 2026, charges 0.06% a year and holds $49.8bn in net assets on Oct 27, 2026.
Promise check: Not measuredNo other ETF tracks the index it names, so its tracking cannot be measured.
IUSB risk and return scorecard
vs its own holdings
Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records; risk-free rate: U.S. Treasury, Daily Treasury Bill Rates, 13-week coupon equivalent Method · Data
Money in and out
Net fund flows · Oct 23, 2026What you earned
What does it hold, and how long?
Holdings filed for Jul 31, 2026 (N-PORT)More on IUSB
Every number below is on this page. Open what you need.Price and total return, 1 year
$44.69−0.2%1 day, priceClose, Oct 28, 2026
Total return adds every distribution, reinvested. Computed by ETFIQ from Tiingo daily prices.
Source: Tiingo end-of-day prices. Data as of Oct 28, 2026. Updated every trading night. Report a data error
| Window | Total return |
|---|---|
| 1M Sep 28 – Oct 28, 2026 | +1.5% |
| 3M Jul 29 – Oct 28, 2026 | −0.7% |
| 6M Apr 29 – Oct 28, 2026 | −1.1% |
| YTD Dec 31, 2025 – Oct 28, 2026 | −0.9% |
| 1Y Oct 28, 2025 – Oct 28, 2026 | −1.2% |
| 3Y Oct 27, 2023 – Oct 28, 2026 | +17.4% |
| 5Y Oct 29, 2021 – Oct 28, 2026 | +0.4% |
| 10Y Oct 28, 2016 – Oct 28, 2026 | +18.1% |
| Since launch Jun 12, 2014 – Oct 28, 2026 | +28.2% |
| Since launch, annualised Jun 12, 2014 – Oct 28, 2026 | +2.0% |
Total returns, distributions reinvested.
Source: Tiingo end-of-day prices, with distributions reinvested.
How far can rates rise in a year before the year's income is gone?
That is the share of the 24 investment-grade bond ETFs with an intermediate duration sitting at or below IUSB.
One year's income against today's duration; it ignores credit risk, and both numbers move. Where the fund sits in this set, not a rating. Do not average it with another category's score.
How far rates could rise before a year's income is gone, ranked against 24 investment-grade bond ETFs with an intermediate duration. 100 is best. How it is computed
IUSB paid 4.34% of its NAV in income over the year to Oct 27, 2026, with a duration of 5.52 years: rates could rise 0.79 percentage points in a year before that income was gone.
Money in and out
Daily data · as of Oct 23, 2026IUSB: in the year to Oct 23, 2026, net $18.2bn came in; in the month to Oct 23, 2026, $1.4bn came in.
Oct 21, 2026 to Oct 23, 2026
Sep 28, 2026 to Oct 23, 2026
Jul 28, 2026 to Oct 23, 2026
Jan 2, 2026 to Oct 23, 2026
Oct 28, 2025 to Oct 23, 2026
SEC filings, then daily counts
IUSB, net flow each trading day over the 63 sessions from Jul 28, 2026 to Oct 23, 2026: money came in on 46 days and went out on 0 days.
Money in on 46 of the 63 trading days, out on 0.
IUSB, net flow each trading day over the 249 sessions from Oct 28, 2025 to Oct 23, 2026: money came in on 115 days and went out on 2 days.
Money in on 115 of the 249 trading days, out on 2.
IUSB, net flow each trading day over the 400 sessions from Mar 24, 2025 to Oct 23, 2026: money came in on 147 days and went out on 13 days.
Money in on 147 of the 400 trading days, out on 13.
Computed by ETFIQ from iShares’s daily data: each day’s change in shares outstanding times the previous day’s net asset value.
How this is computed
Percentages are of net assets at the start of each window. Numbers are net: money in less money out. Checked against the filing: The month’s daily sum and the filing’s B.6 number agree within rounding or, where the filing’s is larger, within rounding plus the fund’s creation and redemption fees. The full rule is in the fund’s flows file. Every day and month ETFIQ holds for IUSB, back to Aug 2019, is in its flows file. Flows across every fund · How these flows are computed · Compare IUSB with other funds in the flows tool
Every trading day, last 3 months63 days
Most recent first.
Week by week, last year52 weeks
Net flow into IUSB each week, Oct 28, 2025 to Oct 23, 2026, most recent first, each week named by its last trading day with data. Computed by ETFIQ.
Month by month, money in and money outNov 2023 to Oct 2026
IUSB, money in and money out each month from Nov 2023 to Sep 2026: two bars a month, money in above the line and money out below. Bars for Nov 2023 to Jul 2026 are from IUSB’s SEC filings (N-PORT item B.6), and for Aug 2026 to Sep 2026 ETFIQ’s sums of its days. Oct 2026 is still in progress, so it is in the list and not drawn. Of the 36 months listed, money came in on net in 32 and went out in 4.
Bars for Nov 2023 to Jul 2026 are from IUSB’s SEC filings (N-PORT item B.6), and for Aug 2026 to Sep 2026 ETFIQ’s sums of its days. Of the 36 months listed, money came in on net in 32 and went out in 4.
Most recent first.
How this is computed
N-PORT months: money in is sales plus reinvestments; money out is redemptions. Months summed from daily data: money in adds the days money came in; money out adds the days it went out.
N-PORT months are the filed sales plus reinvestments less redemptions. Later months add up the daily data; the Source column names any missing day.
Source: ETFIQ, from the fund’s daily share counts and net asset values, and its SEC N-PORT filings. Data as of Oct 23, 2026.
IUSB key stats
Trading
as of Oct 27, 2026
Trades like a giant: trades at a typical spread of 0.02%.
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About IUSB
12 seats on IUSB, as of Oct 28, 2026: 1 Supports, 2 Mixed, 6 Not enough data, 3 Does not apply.
Questions people ask about IUSB
- How has IUSB performed?
- Over the year to Oct 28, 2026, IUSB returned −1.2% with distributions reinvested. Over three years the number is +17.4%.
- What does IUSB cost?
- The prospectus expense ratio is 0.06% a year.
- How far is IUSB below its high?
- 2.6% below its high of Feb 27, 2026, measured on the reinvested series to Oct 28, 2026.
Links are sources, not endorsements.
Cite this pageCitation, APA and Markdown
ETFIQ, IUSB, bond fund, data as of Oct 28, 2026. https://etfiq.com/funds/iusb
ETFIQ. (Oct 28, 2026). IUSB, bond fund. Retrieved from https://etfiq.com/funds/iusb
[IUSB, bond fund (ETFIQ, Oct 28, 2026)](https://etfiq.com/funds/iusb)
Free to use with attribution for data ETFIQ computes; issuer data stays under its owner's terms. The underlying files are at Open data.
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<figure style="margin:0;max-width:640px">
<a href="https://etfiq.com/funds/iusb"><img src="https://etfiq.com/assistant/api/embed/core/iusb.svg" alt="IUSB: IUSB over 1 year: total return −1.2%. Data to Oct 28, 2026." width="640" style="max-width:100%;height:auto"></a>
<figcaption style="font:13px/1.5 sans-serif">IUSB: IUSB over 1 year: total return −1.2%. Data to Oct 28, 2026. Data: <a href="https://etfiq.com/funds/iusb">ETFIQ</a></figcaption>
</figure>The day's ETF flows, a comparison and one number. Every trading morning. About the Daily
Snapshot, Oct 28, 2026. More on the tabs above.