IO

ION Geophysical Corporation

Delisted

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

137 hedge funds and large institutions have $369M invested in ION Geophysical Corporation in 2013 Q4 according to their latest regulatory filings, with 16 funds opening new positions, 50 increasing their positions, 48 reducing their positions, and 21 closing their positions.

Holders
137
Holders Change
-5
Holders Change %
-3.52%
% of All Funds
3.98%
Holding in Top 10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
16
Increased
50
Reduced
48
Closed
21
Calls
$1.46M
Puts
$4.53M
Net Calls
-$3.07M
Net Calls Change
-$2.18M
Name Market Value Shares Shares
Change
Shares
Change %
WAM
101
Wolverine Asset Management
Illinois
$75K 1,533 +1,533 New
Ohio Public Employees Retirement System (OPERS)
102
Ohio Public Employees Retirement System (OPERS)
Ohio
$66K 1,327 +830 +167%
MSA
103
Mason Street Advisors
Wisconsin
$64K 1,299 +98 +8%
PAM
104
Princeton Alpha Management
New Jersey
$59K 1,183 +1,183 New
Two Sigma Advisers
105
Two Sigma Advisers
New York
$54K 1,073 +107 +11%
ZCM
106
Zebra Capital Management
Connecticut
$53K 1,066 -421 -28%
WS
107
Wedbush Securities
California
$52K 1,047 -56 -5%
Cambridge Investment Research Advisors
108
Cambridge Investment Research Advisors
Iowa
$41K 819 +27 +3%
OC
109
Oppenheimer & Co
New York
$40K 800 +800 New
MAA
110
Mraz Amerine & Associates
California
$39K 793 -54 -6%
AIP
111
Ameritas Investment Partners
Nebraska
$39K 792
SBH
112
Segall Bryant & Hamill
Illinois
$39K 785
ProShare Advisors
113
ProShare Advisors
Maryland
$38K 766 -5,042 -87%
SCM
114
Shelton Capital Management
Colorado
$38K 774
WAM
115
World Asset Management
Michigan
$37K 746 -274 -27%
SB
116
Suntrust Banks
Georgia
$37K 760
Nuveen Asset Management
117
Nuveen Asset Management
Illinois
$37K 740 +20 +3%
Royal Bank of Canada
118
Royal Bank of Canada
Ontario, Canada
$36K 716 +683 +2,070%
CIBC Asset Management
119
CIBC Asset Management
Ontario, Canada
$35K 699
Group One Trading
120
Group One Trading
Illinois
$30K 606 +87 +17%
HCM
121
Highlander Capital Management
New Jersey
$19.8K 400 -1,367 -77%
PSI
122
Pinnacle Summer Investments
Virginia
$17K 333
Teacher Retirement System of Texas
123
Teacher Retirement System of Texas
Texas
$16K 313 -724 -70%
BlackRock
124
BlackRock
New York
$15K 290
Creative Planning
125
Creative Planning
Kansas
$14K 287 +14 +5%