TUDOR INVESTMENT CORP ET AL - ION GEOPHYSICAL CORP ownership

ION GEOPHYSICAL CORP's ticker is IO and the CUSIP is 462044108. A total of 150 filers reported holding ION GEOPHYSICAL CORP in Q3 2014. The put-call ratio across all filers is 2.70 and the average weighting 0.0%.

Quarter-by-quarter ownership
TUDOR INVESTMENT CORP ET AL ownership history of ION GEOPHYSICAL CORP
ValueSharesWeighting
Q3 2015$15,000
-62.5%
37,1850.0%0.00%0.0%
Q2 2015$40,000
-63.6%
37,185
-26.9%
0.00%
-75.0%
Q1 2015$110,000
-12.0%
50,861
+11.5%
0.00%0.0%
Q4 2014$125,000
-12.6%
45,603
-11.3%
0.00%
-20.0%
Q3 2014$143,000
+53.8%
51,420
+133.6%
0.01%
+25.0%
Q1 2014$93,000
-86.1%
22,009
-89.1%
0.00%
-87.9%
Q4 2013$668,000
+149.3%
202,460
+292.4%
0.03%
+200.0%
Q3 2013$268,000
+150.5%
51,600
+189.9%
0.01%
+37.5%
Q2 2013$107,00017,8000.01%
Other shareholders
ION GEOPHYSICAL CORP shareholders Q3 2014
NameSharesValueWeighting ↓
VILLERE ST DENIS J & CO LLC 10,309,119$34,020,0001.32%
LANDSCAPE CAPITAL MANAGEMENT, L.L.C. 141,508$467,0000.43%
NCM Capital Advisers, Inc. 121,100$400,0000.41%
US GLOBAL INVESTORS FUNDS 644,781$2,128,0000.38%
U S GLOBAL INVESTORS INC 644,781$2,128,0000.38%
Archer Capital Management, L.P. 736,200$2,429,0000.36%
Parametrica Management Ltd 38,546$127,0000.35%
Counsel Portfolio Services Inc. 577,175$1,905,0000.20%
TFS CAPITAL LLC 1,046,927$3,455,0000.16%
OTA Financial Group L.P. 68,629$226,0000.14%
View complete list of ION GEOPHYSICAL CORP shareholders