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 Q3 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 Q3 2013
NameSharesValueWeighting ↓
Cortex Capital Management LLC 20,000$2,859,0002.07%
RiverPark Advisors, LLC 99$1,415,0000.64%
RIVERPARK CAPITAL MANAGEMENT LLC 24$343,0000.22%
Timber Hill LLC 56,200$8,033,0000.04%
Citadel Advisors 170,300$24,341,0000.03%
Virtu KCG Holdings LLC 3,600$515,0000.01%
View complete list of ZILLOW INC shareholders