GROUP ONE TRADING, L.P. - GEOSPACE TECHNOLOGIES CORP ownership

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GEOSPACE TECHNOLOGIES CORP's ticker is and the CUSIP is 37364X959. A total of 3 filers reported holding GEOSPACE TECHNOLOGIES CORP in Q4 2014. The put-call ratio across all filers is - and the average weighting 0.0%.

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Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of GEOSPACE TECHNOLOGIES CORP
ValueSharesWeighting
Q2 2015$5,000
+66.7%
2000.0%0.00%–
Q1 2015$3,000
-98.9%
200
-98.0%
0.00%
-100.0%
Q4 2014$265,000
+79.1%
10,000
+138.1%
0.00%
+100.0%
Q3 2014$148,000
+2014.3%
4,200
+4100.0%
0.00%–
Q2 2013$7,000–100–0.00%–
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Other shareholders
GEOSPACE TECHNOLOGIES CORP shareholders Q4 2014
NameSharesValueWeighting ↓
GROUP ONE TRADING, L.P. 10,000$265,0000.00%
SIMPLEX TRADING, LLC 6$8,0000.00%
Citadel Advisors 5,000$133,0000.00%
View complete list of GEOSPACE TECHNOLOGIES CORP shareholders