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.
The Sep 30, 2026 filing window is
still open — showing the latest known positions. Funds that have not filed yet
carry their prior-quarter positions; a fund that filed without this stock counts
as sold out. Each fund's Change is measured against its own
previous reported quarter, shown in the Reported column. Pick a
completed quarter in the Quarter selector below to put every
fund on one quarter and see the stock-wide activity breakdown.
Holders:67
Total Value:$450,422,052
Total Shares:59,175,272
Institutional Ownership Trend
11 quarters
Holder Concentration
Across 65 13F filers
Top Holder
30.2%
of institutional value
Top 5
53.6%
of institutional value
Top 10
74.6%
of institutional value
HHI
1,194
Broadly held
Who Holds BBOT
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:
65 filers,
like-for-like change +2.9%; actively managed books -1.4%; index-like books +60.9%.
Holder type
Share
Filers
Change
New
Exited
Registered adviser
72.9%
35
+0.4%
7
11
Exempt adviser
0.9%
2
+538.1%
1
1
Adviser
0.2%
1
0.0%
0
0
Bank
2.4%
7
+278.5%
2
1
Holding company
8.8%
4
-0.1%
0
0
Non-US
0.0%
0
-100.0%
0
1
Insurer
0.0%
0
—
0
0
Broker-dealer
0.0%
0
—
0
0
Unknown
14.7%
16
+0.2%
6
4
Style
Share
Filers
Change
New
Exited
Index-like
10.9%
10
+60.9%
2
0
Systematic-like
5.1%
10
-7.7%
4
5
Concentrated
30.2%
10
-4.3%
0
3
Diversified active
53.8%
35
+1.0%
10
10
Not measured
0.0%
0
—
0
0
Unknown
0.0%
0
—
0
0
Turnover
Share
Filers
Change
New
Exited
Low turnover
30.4%
26
+5.1%
5
2
Medium turnover
56.4%
21
-1.1%
5
6
High turnover
9.3%
15
-5.4%
6
10
Unknown
3.9%
3
+185.5%
0
0
Not measured
0.0%
0
—
0
0
Holding horizon
Share
Filers
Change
New
Exited
Short horizon
4.7%
7
+154.2%
1
4
Medium horizon
14.2%
10
-16.0%
4
4
Long horizon
24.5%
36
+0.1%
8
4
Unknown
56.6%
12
+5.0%
3
6
Not measured
0.0%
0
—
0
0
13F book size
Share
Filers
Change
New
Exited
Under $1B
13.6%
12
+7.2%
5
4
$1B to $10B
56.7%
15
-1.7%
3
7
$10B to $100B
6.9%
12
-14.5%
4
6
$100B or more
22.8%
26
+21.9%
4
1
Not measured
0.0%
0
—
0
0
Client base
Share
Filers
Change
New
Exited
Individuals and high net worth
0.6%
3
+32.3%
1
1
Pooled investment vehicles
64.9%
21
-2.3%
3
9
Registered funds and BDCs
6.5%
10
+21.1%
3
1
Diversified
0.9%
1
+141.7%
0
0
Charitable organizations
0.0%
0
—
0
0
Corporations
0.0%
0
—
0
0
Unknown
27.1%
30
+10.6%
9
7
Private funds
Share
Filers
Change
New
Exited
Hedge funds
27.2%
16
-0.3%
3
9
Private equity funds
32.0%
2
-3.7%
0
1
Venture capital funds
6.1%
2
-5.8%
1
1
Other private funds
1.2%
3
-36.2%
0
0
Mixed private funds
0.5%
1
0.0%
0
0
Private funds, type not stated
0.0%
1
-38.2%
0
0
No private funds
6.9%
12
+97.1%
4
1
Unknown
26.1%
28
+7.4%
8
6
Location
Share
Filers
Change
New
Exited
United States
94.5%
55
+2.2%
14
13
Outside the US
5.5%
10
+17.8%
2
5
The Sep 30, 2026 filing window is still open, so its
bar carries the Jun 30, 2026 positions of filers that have not filed yet.
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.
Fund Ownership of BBOT by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026
Index funds and index ETFs hold 4.90% of shares outstanding.
Fund type
Of shares outstanding
Change
Shares
Funds
Index funds
0.73%
+0.13 pp
588,510
14
Index ETFs
4.17%
+2.76 pp
3,339,228
7
Active ETFs
0.12%
+0.12 pp
93,339
1
Active funds
2.58%
-0.27 pp
2,065,415
18
Unclassified
0.00%
0.00 pp
1,033
1
All registered funds
7.59%
+2.74 pp
6,087,525
41
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.
