SIMPLEX TRADING, LLC - CORE MARK HOLDING CO INC ownership

CORE MARK HOLDING CO INC's ticker is and the CUSIP is 218681904. A total of 3 filers reported holding CORE MARK HOLDING CO INC in Q2 2020. The put-call ratio across all filers is - and the average weighting 0.0%.

Quarter-by-quarter ownership
SIMPLEX TRADING, LLC ownership history of CORE MARK HOLDING CO INC
ValueSharesWeighting
Q2 2021$94,000
-26.0%
2,100
+6263.6%
0.00%
Q1 2021$127,000
+44.3%
33
+10.0%
0.00%
Q4 2020$88,000
-17.8%
30
-18.9%
0.00%
Q3 2020$107,000
-76.2%
37
-79.4%
0.00%
-100.0%
Q2 2020$449,000
+85.5%
180
+111.8%
0.00%
Q1 2020$242,000
+171.9%
85
+157.6%
0.00%
Q4 2019$89,000
+15.6%
33
+37.5%
0.00%
Q3 2019$77,000
-25.2%
24
-7.7%
0.00%
Q2 2019$103,000
-18.3%
26
-23.5%
0.00%
Q1 2019$126,000
+687.5%
34
+385.7%
0.00%
Q4 2018$16,000
-88.7%
7
-83.3%
0.00%
Q3 2018$142,000
-44.5%
42
-62.8%
0.00%
-100.0%
Q2 2018$256,000113
+527.8%
0.00%
Q1 2018$0
-100.0%
18
-83.6%
0.00%
-100.0%
Q3 2017$14,000
+250.0%
110
+13.4%
0.00%
Q2 2017$4,000
+300.0%
97
+98.0%
0.00%
Q1 2017$1,000
-66.7%
49
+113.0%
0.00%
Q4 2016$3,000
+200.0%
23
-77.9%
0.00%
Q3 2016$1,000
-92.9%
104
+15.6%
0.00%
-100.0%
Q2 2016$14,000
+600.0%
90
+900.0%
0.00%
Q1 2016$2,000
-93.9%
9
-76.9%
0.00%
-100.0%
Q3 2015$33,000
+153.8%
39
+44.4%
0.00%
+100.0%
Q2 2015$13,00027
+800.0%
0.00%
Q1 2015$0
-100.0%
3
-87.0%
0.00%
-100.0%
Q4 2014$8,000230.00%
Other shareholders
CORE MARK HOLDING CO INC shareholders Q2 2020
NameSharesValueWeighting ↓
GROUP ONE TRADING, L.P. 9,000$225,0000.00%
SIMPLEX TRADING, LLC 180$449,0000.00%
CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0$00.00%
View complete list of CORE MARK HOLDING CO INC shareholders