GROUP ONE TRADING, L.P. - COMMONWEALTH REIT ownership

COMMONWEALTH REIT's ticker is and the CUSIP is 203233901. A total of 2 filers reported holding COMMONWEALTH REIT in Q4 2013. 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 COMMONWEALTH REIT
ValueSharesWeighting
Q2 2014$11,815,000
+23.0%
448,900
+22.9%
0.18%
+12.3%
Q1 2014$9,605,000
+103.1%
365,200
+80.0%
0.16%
+128.2%
Q4 2013$4,730,000
-5.2%
202,900
-10.9%
0.07%
-25.3%
Q3 2013$4,987,000
-1.1%
227,600
+4.4%
0.10%
-23.4%
Q2 2013$5,040,000218,0000.12%
Other shareholders
COMMONWEALTH REIT shareholders Q4 2013
NameSharesValueWeighting ↓
CR Intrinsic Investors, LLC 412,100$9,528,0000.33%
GROUP ONE TRADING, L.P. 218,000$5,040,0000.12%
SIGMA CAPITAL MANAGEMENT LLC 100,000$2,312,0000.11%
Timber Hill LLC 44,300$1,024,0000.00%
Citadel Advisors 15,700$363,0000.00%
View complete list of COMMONWEALTH REIT shareholders