GROUP ONE TRADING, L.P. - CONSTANT CONTACT INC ownership

CONSTANT CONTACT INC's ticker is and the CUSIP is 210313902. A total of 3 filers reported holding CONSTANT CONTACT INC in Q4 2014. The put-call ratio across all filers is - and the average weighting 0.0%.

Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of CONSTANT CONTACT INC
ValueSharesWeighting
Q4 2015$474,000
+1056.1%
16,200
+852.9%
0.01%
+500.0%
Q3 2015$41,000
+141.2%
1,700
+183.3%
0.00%
Q2 2015$17,000
-88.3%
600
-84.2%
0.00%
-100.0%
Q1 2015$145,000
-62.3%
3,800
-63.8%
0.00%
-66.7%
Q4 2014$385,000
+1926.3%
10,500
+1400.0%
0.01%
Q3 2014$19,000
-83.6%
700
-80.6%
0.00%
-100.0%
Q2 2014$116,000
+673.3%
3,600
+500.0%
0.00%
Q1 2014$15,000
-84.4%
600
-80.6%
0.00%
-100.0%
Q4 2013$96,000
-25.0%
3,100
-42.6%
0.00%
-50.0%
Q3 2013$128,000
+573.7%
5,400
+350.0%
0.00%
Q2 2013$19,0001,2000.00%
Other shareholders
CONSTANT CONTACT INC shareholders Q4 2014
NameSharesValueWeighting ↓
GROUP ONE TRADING, L.P. 10,500$385,0000.01%
SIMPLEX TRADING, LLC 8$1,0000.00%
Citadel Advisors 10,000$367,0000.00%
View complete list of CONSTANT CONTACT INC shareholders