IO

ION Geophysical Corporation
IO

Overview Fund Activity
Delisted

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

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142 hedge funds and large institutions have $575M invested in ION Geophysical Corporation in 2013 Q3 according to their latest regulatory filings, with 15 funds opening new positions, 62 increasing their positions, 46 reducing their positions, and 25 closing their positions.

Holders
142
Holders Change
-11
Holders Change %
-7.19%
% of All Funds
4.61%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
15
Increased
62
Reduced
46
Closed
25
Calls
$480K
Puts
$1.37M
Net Calls
-$887K
Net Calls Change
-$81K

Top Buyers

1
Invesco
1
Invesco
Georgia
$109M
2
SDJVC
2
St. Denis J. Villere & Co
Louisiana
$71.5M
3
BIT
3
BlackRock Institutional Trust
California
$23.8M
4
BFA
4
BlackRock Fund Advisors
California
$36.7M
5
BA
5
BlackRock Advisors
Delaware
$3.61M

Top Sellers

1
GC
1
GW Capital
Washington
$0
2
Wellington Management Group
2
Wellington Management Group
Massachusetts
$35M
3
RHJA
3
Rice Hall James & Associates
California
$0
4
Principal Financial Group
4
Principal Financial Group
Iowa
$3.71M
5
PA
5
Pinnacle Associates
New York
$0
Name Market Value Shares Shares
Change 		Shares
Change %
SG Americas Securities
101
SG Americas Securities
New York
$124K 1,591 +1,591 New
NCA
102
NCM Capital Advisers
North Carolina
$119K 1,527 +1,527 New
TD Asset Management
103
TD Asset Management
Ontario, Canada
$118K 1,507 +154 +11%
ZCM
104
Zebra Capital Management
Connecticut
$116K 1,487 +263 +21%
Two Sigma Investments
105
Two Sigma Investments
New York
$106K 1,357 -864 -39%
GMIM
106
General Motors Investment Management
New York
$104K 1,327 -2,001 -60%
BCM
107
Bluefin Capital Management
New York
$100K 743 +743 New
MSA
108
Mason Street Advisors
Wisconsin
$94K 1,201 +85 +8%
WS
109
Wedbush Securities
California
$86K 1,103 -23 -2%
PG
110
PEAK6 Group
Illinois
$82.1K 2,095 +2,095 New
DTL
111
Dynamic Technology Lab
Singapore
$82K 1,054 +1,054 New
Teacher Retirement System of Texas
112
Teacher Retirement System of Texas
Texas
$81K 1,037 +469 +83%
WAM
113
World Asset Management
Michigan
$80K 1,020 -55 -5%
Two Sigma Advisers
114
Two Sigma Advisers
New York
$76K 966 +20 +2%
PI
115
PineBridge Investments
New York
$72K 919 – –
MAA
116
Mraz Amerine & Associates
California
$66K 847 – –
Cambridge Investment Research Advisors
117
Cambridge Investment Research Advisors
Iowa
$62K 792 – –
AIP
118
Ameritas Investment Partners
Nebraska
$62K 792 +792 New
SBH
119
Segall Bryant & Hamill
Illinois
$61K 785 +785 New
SCM
120
Shelton Capital Management
Colorado
$60K 774 – –
SB
121
Suntrust Banks
Georgia
$59K 760 -25 -3%
Nuveen Asset Management
122
Nuveen Asset Management
Illinois
$56K 720 +35 +5%
CIBC Asset Management
123
CIBC Asset Management
Ontario, Canada
$55K 699 -141 -17%
VCM
124
Violich Capital Management
California
$52K 667 – –
Group One Trading
125
Group One Trading
Illinois
$40K 519 +519 New
3 4
5
6 7