SIMPLEX TRADING, LLC - CEPHEID ownership

CEPHEID's ticker is and the CUSIP is 15670R957. A total of 3 filers reported holding CEPHEID in Q2 2015. The put-call ratio across all filers is - and the average weighting 0.0%.

Quarter-by-quarter ownership
SIMPLEX TRADING, LLC ownership history of CEPHEID
ValueSharesWeighting
Q3 2016$5,000
-68.8%
529
+796.6%
0.00%
-100.0%
Q2 2016$16,00059
+1866.7%
0.00%
Q1 2016$0
-100.0%
3
-95.1%
0.00%
-100.0%
Q4 2015$31,000
+29.2%
61
-11.6%
0.00%0.0%
Q3 2015$24,00069
+1280.0%
0.00%
Q2 2015$050.00%
Other shareholders
CEPHEID shareholders Q2 2015
NameSharesValueWeighting ↓
GROUP ONE TRADING, L.P. 23,000$1,406,0000.02%
SIMPLEX TRADING, LLC 5$00.00%
Citadel Advisors 3,200$196,0000.00%
View complete list of CEPHEID shareholders