GROUP ONE TRADING, L.P. - ZILLOW INC ownership

ZILLOW INC's ticker is and the CUSIP is 98954A957. A total of 3 filers reported holding ZILLOW INC 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 ZILLOW INC
ValueSharesWeighting
Q1 2015$582,000
-69.0%
5,800
-74.8%
0.01%
-67.9%
Q4 2013$1,880,000
-19.3%
23,000
-16.7%
0.03%
-37.8%
Q3 2013$2,329,000
+42.2%
27,600
-5.2%
0.04%
+12.5%
Q2 2013$1,638,00029,1000.04%
Other shareholders
ZILLOW INC shareholders Q4 2013
NameSharesValueWeighting ↓
Anson Funds Management LP 25,000$2,647,0003.13%
SIMPLEX TRADING, LLC 334$527,0000.06%
Citadel Advisors 254,700$26,970,0000.03%
Timber Hill LLC 39,700$4,204,0000.02%
Pentwater Capital Management LP 20,000$2,118,0000.02%
Virtu KCG Holdings LLC 2,500$265,0000.00%
Marathon Trading Investment Management LLC 2,500$265,0000.00%
View complete list of ZILLOW INC shareholders