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

ATHENAHEALTH INC's ticker is and the CUSIP is 04685W903. A total of 5 filers reported holding ATHENAHEALTH INC in Q4 2018. 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 ATHENAHEALTH INC
ValueSharesWeighting
Q4 2018$8,668,000
-59.1%
65,700
-58.6%
0.08%
-55.4%
Q3 2018$21,202,000
+940.8%
158,700
+1139.8%
0.17%
+888.2%
Q2 2018$2,037,000
+146.9%
12,800
+106.5%
0.02%
+183.3%
Q4 2017$825,000
+7.0%
6,2000.0%0.01%
-14.3%
Q3 2017$771,000
-11.5%
6,2000.0%0.01%
-22.2%
Q2 2017$871,000
+17.1%
6,200
-6.1%
0.01%0.0%
Q1 2017$744,000
+342.9%
6,600
+312.5%
0.01%
+350.0%
Q4 2016$168,0001,6000.00%
Other shareholders
ATHENAHEALTH INC shareholders Q4 2018
NameSharesValueWeighting ↓
GROUP ONE TRADING, L.P. 65,700$8,668,0000.08%
SIMPLEX TRADING, LLC 1,725$22,757,0000.07%
JPMORGAN CHASE & CO 23,100$3,048,0000.00%
IMC-Chicago, LLC 2,300$303,0000.00%
CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0$00.00%
View complete list of ATHENAHEALTH INC shareholders