GSA CAPITAL PARTNERS LLP - ION GEOPHYSICAL CORP ownership

ION GEOPHYSICAL CORP's ticker is IO and the CUSIP is 462044108. A total of 83 filers reported holding ION GEOPHYSICAL CORP in Q4 2015. The put-call ratio across all filers is - and the average weighting 0.0%.

Quarter-by-quarter ownership
GSA CAPITAL PARTNERS LLP ownership history of ION GEOPHYSICAL CORP
ValueSharesWeighting
Q3 2015$142,000
-42.3%
364,133
+668.9%
0.01%
-63.2%
Q3 2013$246,000
-3.1%
47,358
+12.3%
0.02%
-36.7%
Q2 2013$254,00042,1580.03%
Other shareholders
ION GEOPHYSICAL CORP shareholders Q4 2015
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