IUSBiShares Core Universal USD Bond ETF$44.42+0.20%
incl. div.
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Institutional holdings are being reconciled with SEC filings. Holder totals and changes may be incomplete until reconciliation finishes.
Holders:226
Total Value:$406,467,363
Total Shares:55,662,322
Showing 1–100
of 226 holdings by value
· page 1 of 3
Institutional Ownership Trend
27 quarters
Holder Concentration
Across 226 13F filers
· Δ vs Jun 30, 2026
Top Holder
32.9%
−18.7 pts
Top 5
81.3%
+15.7 pts
Top 10
91.3%
+18.5 pts
HHI
1,816
Moderately concentrated−921
Who Holds IUSB
Last 8 quarters through Sep 30, 2026 (filing window open)
Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory
records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book.
The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter:
862 filers,
like-for-like change +20.1%; actively managed books +20.4%; index-like books +18.7%.
Holder type
Share
Filers
Change
New
Exited
Registered adviser
42.9%
603
+23.3%
52
33
Exempt adviser
0.0%
1
+74.4%
0
0
Adviser
3.0%
8
+21.7%
1
1
Bank
12.1%
27
+15.3%
2
0
Broker-dealer
6.9%
1
+31.5%
0
0
Non-US
0.0%
1
-75.0%
0
0
Holding company
13.1%
7
+17.2%
0
0
Insurer
0.0%
0
—
0
0
Unknown
21.9%
214
+15.4%
19
26
Style
Share
Filers
Change
New
Exited
Index-like
14.2%
6
+18.7%
0
0
Systematic-like
0.0%
4
-72.9%
2
2
Concentrated
19.5%
384
+7.0%
37
28
Diversified active
66.3%
468
+25.1%
35
30
Not measured
0.0%
0
—
0
0
Unknown
0.0%
0
—
0
0
Turnover
Share
Filers
Change
New
Exited
Low turnover
92.5%
557
+19.8%
50
35
Medium turnover
6.5%
174
+27.2%
11
12
High turnover
0.2%
14
-4.3%
3
5
Unknown
0.8%
117
+12.4%
10
8
Not measured
0.0%
0
—
0
0
Holding horizon
Share
Filers
Change
New
Exited
Short horizon
0.8%
119
+20.1%
13
8
Medium horizon
16.8%
240
+13.0%
19
26
Long horizon
80.2%
482
+21.3%
39
23
Unknown
2.2%
21
+38.6%
3
3
Not measured
0.0%
0
—
0
0
13F book size
Share
Filers
Change
New
Exited
Under $1B
5.9%
509
+13.7%
45
40
$1B to $10B
11.0%
244
+10.8%
22
15
$10B to $100B
15.9%
75
+27.0%
6
4
$100B or more
67.1%
34
+20.9%
1
1
Not measured
0.0%
0
—
0
0
Client base
Share
Filers
Change
New
Exited
Individuals and high net worth
40.1%
559
+26.9%
48
30
Pooled investment vehicles
0.0%
2
-34.5%
1
1
Registered funds and BDCs
0.3%
4
+2.3%
0
0
Pension and profit sharing plans
1.1%
10
-17.4%
0
1
Insurance companies
0.0%
2
-2.7%
0
0
Charitable organizations
0.0%
1
-30.2%
0
0
Corporations
0.1%
2
+32.1%
0
0
Other investment advisers
0.8%
7
-20.2%
0
0
Other
0.3%
3
+29.8%
0
0
Diversified
0.2%
11
-12.6%
2
1
Unknown
57.1%
261
+17.9%
23
27
Private funds
Share
Filers
Change
New
Exited
Hedge funds
0.1%
12
-18.1%
2
2
Private equity funds
3.1%
21
+11.3%
3
1
Venture capital funds
0.0%
2
+51.7%
0
0
Real estate funds
0.2%
10
+30.3%
0
0
Securitized asset funds
0.0%
1
-50.9%
0
0
Other private funds
0.8%
22
+10.5%
0
0
Mixed private funds
0.0%
3
+68.8%
2
0
Private funds, type not stated
0.0%
4
+7.6%
0
2
No private funds
38.6%
528
+24.8%
45
28
Unknown
57.1%
259
+17.9%
22
27
Location
Share
Filers
Change
New
Exited
United States
99.1%
849
+20.3%
72
59
Outside the US
0.9%
13
+8.9%
2
1
The Sep 30, 2026 filing window is still open, so its
bar shows only the filers that have filed so far.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out.
The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later
quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type
comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster
current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and
book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none
was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Excluded 15 holders with no observed 2026-03-31 13F and 12 holders with no observed 2026-06-30 13F.
Conviction and Crowding
862 13F filers, quarter ended Jun 30, 2026
Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts
filers with high turnover or that advise private funds on Form ADV.
Conviction holders
248
28.8% of filers hold it in their top 10
Mar 31, 2026: 1
Holders above 5%
27
median weight 0.594%
Mar 31, 2026: 0
Crowding
—
shares outstanding is an issuer-wide count, not one listing's
Private-fund advisers
—
of shares outstanding
Institutional ownership
—
shares outstanding is an issuer-wide count, not one listing's
How long holders have held itvalue-weighted 19.9 quarters
Under 1 year 5.13%1 to 3 years 17.6%3 years or more 77.3%Since coverage start 0.000%
Managers in the top fifth by current three-year FundScore alpha were net
buyers of $0
(0 buying, 0 selling).
Fund Ownership of IUSB by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026
Index funds and index ETFs hold 62,595,424 shares.
Fund type
Shares
Funds
Index funds
0
0
Index ETFs
62,595,424
5
Active ETFs
329,245
1
Active funds
0
0
Unclassified
0
0
All registered funds
62,924,669
6
How fund types are measured
Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share
positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or
before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have
no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their
advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.
Quarterly Activity
vs Jun 30, 2026
New
18
Increased
146
Decreased
46
Sold Out
16
Unchanged
15
New and Sold Out count only filers that reported a 13F for both quarters: a first-time filer's book is not a buy, and a fund that has not filed, or withheld its positions under confidential treatment, has not sold.
