SIMPLEX TRADING, LLC - NORTH ATLANTIC DRILLING LTD ownership

NORTH ATLANTIC DRILLING LTD's ticker is and the CUSIP is G6613P902. A total of 1 filers reported holding NORTH ATLANTIC DRILLING LTD in Q4 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 NORTH ATLANTIC DRILLING LTD
ValueSharesWeighting
Q4 2015$01
-80.0%
0.00%
Q4 2014$050.00%
Other shareholders
NORTH ATLANTIC DRILLING LTD shareholders Q4 2015
NameSharesValueWeighting ↓
GROUP ONE TRADING, L.P. 33,200$54,0000.00%
Citadel Advisors 12,600$21,0000.00%
SIMPLEX TRADING, LLC 5$00.00%
View complete list of NORTH ATLANTIC DRILLING LTD shareholders