SpiderRock Trading LLC - ON ASSIGNMENT INC ownership

ON ASSIGNMENT INC's ticker is and the CUSIP is 68215910. A total of 1 filers reported holding ON ASSIGNMENT INC in Q2 2014. The put-call ratio across all filers is - and the average weighting 0.0%.

Quarter-by-quarter ownership
SpiderRock Trading LLC ownership history of ON ASSIGNMENT INC
ValueSharesWeighting
Q2 2014$1,000300
-70.0%
0.00%
Q1 2014$0
-100.0%
1,000
+25.0%
0.00%
-100.0%
Q4 2013$1,0008000.01%
Other shareholders
ON ASSIGNMENT INC shareholders Q2 2014
NameSharesValueWeighting ↓
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 234,656$8,194,0000.04%
NORTHERN TRUST CO OF CONNECTICUT 81,645$2,851,0000.02%
SpiderRock Trading LLC 800$1,0000.01%
View complete list of ON ASSIGNMENT INC shareholders