GROUP ONE TRADING, L.P. - CALPINE CORP ownership

CALPINE CORP's ticker is and the CUSIP is 131347954. A total of 5 filers reported holding CALPINE CORP 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 CALPINE CORP
ValueSharesWeighting
Q4 2017$4,698,000
+18.5%
310,500
+15.6%
0.03%
-8.3%
Q3 2017$3,963,000
+21.8%
268,700
+11.8%
0.04%
+5.9%
Q2 2017$3,253,000
+22.6%
240,400
+0.1%
0.03%
+9.7%
Q1 2017$2,654,000
-22.2%
240,200
-19.5%
0.03%
-6.1%
Q4 2016$3,410,000
-9.1%
298,300
+0.5%
0.03%
-19.5%
Q3 2016$3,750,000
+257.1%
296,700
+316.7%
0.04%
+241.7%
Q2 2016$1,050,000
+733.3%
71,200
+757.8%
0.01%
+500.0%
Q1 2016$126,000
-93.1%
8,300
-93.4%
0.00%
-90.9%
Q4 2015$1,823,000
+17.2%
126,000
+18.2%
0.02%0.0%
Q3 2015$1,556,000
+156.8%
106,600
+216.3%
0.02%
+175.0%
Q2 2015$606,000
+132.2%
33,700
+195.6%
0.01%
+100.0%
Q1 2015$261,000
-93.2%
11,400
-93.4%
0.00%
-93.1%
Q4 2014$3,811,000
+5.9%
172,200
+3.8%
0.06%
+5.5%
Q3 2014$3,600,000
+5.9%
165,900
+16.3%
0.06%
+5.8%
Q2 2014$3,398,000
+14.9%
142,700
+0.9%
0.05%
+4.0%
Q1 2014$2,957,000
+23.4%
141,400
+15.1%
0.05%
+38.9%
Q4 2013$2,396,000
+560.1%
122,800
+556.7%
0.04%
+414.3%
Q3 2013$363,000
-5.0%
18,700
+3.9%
0.01%
-22.2%
Q2 2013$382,00018,0000.01%
Other shareholders
CALPINE CORP shareholders Q4 2014
NameSharesValueWeighting ↓
Signpost Capital Advisors, LP 1,650,000$23,876,0006.40%
GROUP ONE TRADING, L.P. 126,000$1,823,0000.02%
Timber Hill LLC 96,100$1,391,0000.01%
Citadel Advisors 74,200$1,074,0000.00%
SIMPLEX TRADING, LLC 25$1,0000.00%
JPMORGAN CHASE & CO 79,000$1,143,0000.00%
View complete list of CALPINE CORP shareholders