IO

ION Geophysical Corporation
IO

Overview Fund Activity
Delisted

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

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36 hedge funds and large institutions have $7.13M invested in ION Geophysical Corporation in 2020 Q4 according to their latest regulatory filings, with 4 funds opening new positions, 7 increasing their positions, 15 reducing their positions, and 6 closing their positions.

Holders
36
Holders Change
-2
Holders Change %
-5.26%
% of All Funds
0.64%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
4
Increased
7
Reduced
15
Closed
6
Calls
$226K
Puts
$4K
Net Calls
+$222K
Net Calls Change
+$180K

Top Buyers

1
Susquehanna International Group
1
Susquehanna International Group
Pennsylvania
$116K
2
GCP
2
GSA Capital Partners
United Kingdom
$132K
3
BlackRock
3
BlackRock
New York
$505K
4
SSA
4
Schonfeld Strategic Advisors
New York
$34K
5
Citadel Advisors
5
Citadel Advisors
Florida
$31K

Top Sellers

1
Morgan Stanley
1
Morgan Stanley
New York
$2K
2
Acadian Asset Management
2
Acadian Asset Management
Massachusetts
$193K
3
Dimensional Fund Advisors
3
Dimensional Fund Advisors
Texas
$0
4
Squarepoint
4
Squarepoint
New York
$65K
5
Renaissance Technologies
5
Renaissance Technologies
New York
$2.44M
Name Market Value Shares Shares
Change 		Shares
Change %
TRCT
26
Tower Research Capital (TRC)
New York
$8K 3,304 -749 -18%
Morgan Stanley
27
Morgan Stanley
New York
$2K 747 -209,819 -100%
Group One Trading
28
Group One Trading
Illinois
$2K 627 -6,543 -91%
Royal Bank of Canada
29
Royal Bank of Canada
Ontario, Canada
$2K 802 -290 -27%
BFEC
30
Benjamin F. Edwards & Company
Missouri
$2K 1,000 – –
JPMorgan Chase & Co
31
JPMorgan Chase & Co
New York
$2K 1,004 +90 +10%
Dimensional Fund Advisors
32
Dimensional Fund Advisors
Texas
– – -167,658 Closed
Arrowstreet Capital
33
Arrowstreet Capital
Massachusetts
– – -18,089 Closed
Citigroup
34
Citigroup
New York
– – -16,371 Closed
MAM
35
Meeder Asset Management
Ohio
– – -2,321 Closed
Simplex Trading
36
Simplex Trading
Illinois
– – -1,373 Closed
Barclays
37
Barclays
United Kingdom
– – -173 Closed
CG
38
Cutler Group
California
– – – –
CFGS
39
Concourse Financial Group Securities
Alabama
– – – –
CAPTRUST Financial Advisors
40
CAPTRUST Financial Advisors
North Carolina
$0 15 – –
BFC
41
Bedel Financial Consulting
Indiana
$0 6 – –
ASN
42
Advisory Services Network
Georgia
$0 175 – –
Osaic Holdings
43
Osaic Holdings
Arizona
$0 29 – –
CCC
44
Crescent Capital Consulting
Louisiana
$0 66 +66 New
1
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