GROUP ONE TRADING, L.P. - DRESSER-RAND GROUP INC ownership

DRESSER-RAND GROUP INC's ticker is and the CUSIP is 261608953. A total of 4 filers reported holding DRESSER-RAND GROUP INC in Q4 2014. The put-call ratio across all filers is - and the average weighting 0.7%.

Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of DRESSER-RAND GROUP INC
ValueSharesWeighting
Q2 2015$7,981,000
+120.7%
93,700
+108.2%
0.11%
+96.5%
Q1 2015$3,616,000
+81.2%
45,000
+84.4%
0.06%
+90.0%
Q4 2014$1,996,000
-73.6%
24,400
-73.4%
0.03%
-74.1%
Q3 2014$7,560,000
+39689.5%
91,900
+30533.3%
0.12%
Q2 2014$19,000
+5.6%
3000.0%0.00%
Q1 2014$18,000
-98.7%
300
-98.7%
0.00%
-100.0%
Q4 2013$1,395,000
+38.8%
23,400
+45.3%
0.02%
+10.5%
Q3 2013$1,005,000
+86.1%
16,100
+78.9%
0.02%
+46.2%
Q2 2013$540,0009,0000.01%
Other shareholders
DRESSER-RAND GROUP INC shareholders Q4 2014
NameSharesValueWeighting ↓
GROUP ONE TRADING, L.P. 91,900$7,560,0000.12%
PEAK6 Group LLC 29,000$2,386,0000.02%
Citadel Advisors 38,700$3,183,0000.00%
View complete list of DRESSER-RAND GROUP INC shareholders