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Data I/O

25 hedge funds and large institutions have $10.5M invested in Data I/O in 2025 Q2 according to their latest regulatory filings, with 2 funds opening new positions, 10 increasing their positions, 6 reducing their positions, and 3 closing their positions.

Holders
25
Holders Change
-1
Holders Change %
-3.85%
% of All Funds
0.34%
Holding in Top 10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
2
Increased
10
Reduced
6
Closed
3
Calls
Puts
Net Calls
Net Calls Change
Name Market Value Shares Shares
Change
Shares
Change %
KWM
1
Kanen Wealth Management
Florida
$2.59M 839,421
PM
2
Penbrook Management
New York
$1.74M 619,200 +349,750 +130%
Renaissance Technologies
3
Renaissance Technologies
New York
$1.48M 476,343 -3,272 -0.7%
Vanguard Group
4
Vanguard Group
Pennsylvania
$1.1M 358,458
KA
5
Kovack Advisors
Florida
$835K 269,431 -12,575 -4%
Dimensional Fund Advisors
6
Dimensional Fund Advisors
Texas
$829K 270,110 +12,758 +5%
Acadian Asset Management
7
Acadian Asset Management
Massachusetts
$408K 133,221 -13,319 -9%
Bank of New York Mellon
8
Bank of New York Mellon
New York
$362K 116,751
Geode Capital Management
9
Geode Capital Management
Massachusetts
$300K 97,599 -135 -0.1%
EIM
10
Essex Investment Management
Massachusetts
$231K 74,641 +30,950 +71%
Citadel Advisors
11
Citadel Advisors
Florida
$130K 42,369 +1,148 +3%
JIR
12
James Investment Research
Ohio
$69.4K 22,402 +7,000 +45%
NA
13
NewEdge Advisors
Louisiana
$69.4K 22,402 +7,000 +45%
BA
14
Bard Associates
Illinois
$66.7K 21,738 -450 -2%
SPIA
15
Steward Partners Investment Advisory
New York
$64.8K 20,917 +20,917 New
Northern Trust
16
Northern Trust
Illinois
$56.7K 18,277 +2,253 +14%
LCM
17
Legato Capital Management
California
$54.4K 17,550 +6,874 +64%
BlackRock
18
BlackRock
New York
$52.7K 17,015
State Street
19
State Street
Massachusetts
$49.6K 16,170
Simplex Trading
20
Simplex Trading
Illinois
$16K 5,181 +2,987 +136%
TRCT
21
Tower Research Capital (TRC)
New York
$3.55K 1,144 -463 -29%
Raymond James Financial
22
Raymond James Financial
Florida
$3.1K 1,000 +1,000 New
Bank of America
23
Bank of America
North Carolina
$258 83 +13 +19%
SS
24
SBI Securities
Japan
$3 1
HNB
25
Huntington National Bank
Ohio
$3 1