Citadel Advisors - ION GEOPHYSICAL CORP ownership

ION GEOPHYSICAL CORP's ticker is IO and the CUSIP is 462044207. A total of 41 filers reported holding ION GEOPHYSICAL CORP in Q2 2020. The put-call ratio across all filers is 237.00 and the average weighting 0.0%.

Quarter-by-quarter ownership
Citadel Advisors ownership history of ION GEOPHYSICAL CORP
ValueSharesWeighting
Q1 2022$112,000
+143.5%
128,099
+145.9%
0.00%
Q4 2021$46,000
-49.5%
52,100
-23.7%
0.00%
Q3 2021$91,000
-21.6%
68,255
+24.0%
0.00%
Q2 2021$116,000
-71.0%
55,040
-70.5%
0.00%
Q1 2021$400,000
+455.6%
186,700
+529.5%
0.00%
Q4 2020$72,000
-53.5%
29,657
-55.4%
0.00%
Q2 2020$155,000
+715.8%
66,518
+346.4%
0.00%
Q1 2020$19,000
-86.6%
14,900
-15.8%
0.00%
Q2 2019$142,000
-46.8%
17,700
-4.3%
0.00%
Q1 2019$267,000
+323.8%
18,500
+51.6%
0.00%
Q4 2018$63,000
-97.5%
12,200
-88.4%
0.00%
-100.0%
Q2 2018$2,553,000
+109.1%
105,058
+133.0%
0.00%
Q1 2018$1,221,000
+410.9%
45,080
+272.6%
0.00%
Q4 2017$239,000
+298.3%
12,100
-1.6%
0.00%
Q1 2017$60,00012,2970.00%
Other shareholders
ION GEOPHYSICAL CORP shareholders Q2 2020
NameSharesValueWeighting ↓
GSA CAPITAL PARTNERS LLP 54,182$132,0000.02%
BRIDGEWAY CAPITAL MANAGEMENT, LLC 77,400$188,0000.00%
Renaissance Technologies 1,004,267$2,440,0000.00%
SeaCrest Wealth Management, LLC 10,000$24,0000.00%
FARMERS & MERCHANTS INVESTMENTS INC 20,763$50,0000.00%
Neuberger Berman Group LLC 284,018$690,0000.00%
ACADIAN ASSET MANAGEMENT LLC 79,526$193,0000.00%
SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 17,876$43,0000.00%
DEUTSCHE BANK AG\ 300,000$729,0000.00%
MORGAN STANLEY 747$2,0000.00%
View complete list of ION GEOPHYSICAL CORP shareholders