IO

ION Geophysical Corporation
IO

Overview Fund Activity
Delisted

IO was delisted on the 18th of May, 2022.

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69 hedge funds and large institutions have $94.4M invested in ION Geophysical Corporation in 2019 Q1 according to their latest regulatory filings, with 16 funds opening new positions, 20 increasing their positions, 16 reducing their positions, and 11 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
69
Holders Change
+5
Holders Change %
+7.81%
% of All Funds
1.5%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
16
Increased
20
Reduced
16
Closed
11
Calls
$6.34M
Puts
$330K
Net Calls
+$6.01M
Net Calls Change
+$5.92M

Top Buyers

1
Deutsche Bank
1
Deutsche Bank
Germany
$7.78M
2
Vanguard Group
2
Vanguard Group
Pennsylvania
$7.04M
3
Group One Trading
3
Group One Trading
Illinois
$568K
4
Neuberger Berman Group
4
Neuberger Berman Group
New York
$6.59M
5
Dimensional Fund Advisors
5
Dimensional Fund Advisors
Texas
$6.78M

Top Sellers

1
Renaissance Technologies
1
Renaissance Technologies
New York
$10.2M
2
GCM
2
Gates Capital Management
New York
$14.8M
3
JPMorgan Chase & Co
3
JPMorgan Chase & Co
New York
$37K
4
AQR Capital Management
4
AQR Capital Management
Connecticut
$150K
5
BCM
5
Bridgeway Capital Management
Texas
$1.88M
Name Holding Trade Value Shares
Change 		Shares
Change %
AIM
26
Alambic Investment Management
California
$305K +$305K +21,128 New
NSEDCP
27
NJ State Employees Deferred Compensation Plan
New Jersey
$289K -$405K -28,000 -58%
WG
28
Winton Group
United Kingdom
$259K +$259K +17,941 New
American Century Companies
29
American Century Companies
Missouri
$252K +$252K +17,446 New
California State Teachers Retirement System (CalSTRS)
30
California State Teachers Retirement System (CalSTRS)
California
$235K – – –
Morgan Stanley
31
Morgan Stanley
New York
$221K -$54.8K -3,801 -20%
PP
32
PDT Partners
New York
$213K -$22.5K -1,557 -10%
RhumbLine Advisers
33
RhumbLine Advisers
Massachusetts
$201K -$8.96K -619 -4%
California Public Employees Retirement System
34
California Public Employees Retirement System
California
$200K – – –
New York State Common Retirement Fund
35
New York State Common Retirement Fund
New York
$170K – – –
EMG
36
Ellington Management Group
Connecticut
$166K +$166K +11,500 New
D.E. Shaw & Co
37
D.E. Shaw & Co
New York
$156K +$156K +10,789 New
AQR Capital Management
38
AQR Capital Management
Connecticut
$150K -$1.16M -79,865 -89%
Acadian Asset Management
39
Acadian Asset Management
Massachusetts
$120K +$120K +8,293 New
Citigroup
40
Citigroup
New York
$119K -$450K -31,237 -79%
Simplex Trading
41
Simplex Trading
Illinois
$106K +$105K +7,312 +15,557%
AIG
42
American International Group
New York
$98K -$3.18K -220 -3%
DCM
43
Dupont Capital Management
Delaware
$97K – – –
UBS Group
44
UBS Group
Switzerland
$63K -$32.6K -2,245 -34%
Bank of America
45
Bank of America
North Carolina
$59K -$44.1K -3,013 -43%
Barclays
46
Barclays
United Kingdom
$44K +$44K +3,063 New
JPMorgan Chase & Co
47
JPMorgan Chase & Co
New York
$37K -$1.9M -133,445 -98%
PCM
48
Prelude Capital Management
New York
$34K +$34K +2,372 New
BNP Paribas Financial Markets
49
BNP Paribas Financial Markets
France
$32K +$24.8K +1,719 +345%
SEI Investments
50
SEI Investments
Pennsylvania
$26K +$10K +866 +63%
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