SIMPLEX TRADING, LLC - MARKEL CORP ownership

MARKEL CORP's ticker is and the CUSIP is 570535954. A total of 4 filers reported holding MARKEL CORP in Q1 2023. The put-call ratio across all filers is - and the average weighting 0.0%.

Quarter-by-quarter ownership
SIMPLEX TRADING, LLC ownership history of MARKEL CORP
ValueSharesWeighting
Q3 2023$4,859
-5.0%
3,300
-10.8%
0.00%0.0%
Q2 2023$5,117
+29.2%
3,700
+19.4%
0.00%
+33.3%
Q1 2023$3,959
-8.9%
3,100
-6.1%
0.00%
-40.0%
Q4 2022$4,347
-100.0%
3,300
-64.1%
0.01%
-54.5%
Q3 2022$9,974,000
+92.8%
9,200
+130.0%
0.01%
+120.0%
Q2 2022$5,173,000
+94.8%
4,000
+122.2%
0.01%
+150.0%
Q1 2022$2,655,000
+330.3%
1,800
+260.0%
0.00%
+100.0%
Q4 2021$617,000
+409.9%
500
+400.0%
0.00%
Q3 2021$121,000
+2.5%
1000.0%0.00%
Q2 2021$118,000
-48.0%
100
+4900.0%
0.00%
Q1 2021$227,0002
-92.0%
0.00%
Q4 2020$0
-100.0%
25
+127.3%
0.00%
-100.0%
Q3 2020$1,071,000
-17.1%
11
-21.4%
0.00%
-50.0%
Q2 2020$1,292,000
-26.7%
14
-26.3%
0.00%
-33.3%
Q1 2020$1,762,000
+1679.8%
19
+1800.0%
0.00%
Q1 2019$99,000
-52.2%
1
-50.0%
0.00%
-100.0%
Q4 2018$207,000
-65.2%
2
-60.0%
0.00%
-50.0%
Q3 2018$594,000
-93.0%
5
-93.6%
0.00%
-93.9%
Q2 2018$8,457,000
+845600.0%
78
+3800.0%
0.03%
Q3 2017$1,000
-50.0%
2
-80.0%
0.00%
Q1 2017$2,000
-71.4%
10
+233.3%
0.00%
-100.0%
Q1 2016$7,000
-30.0%
3
-84.2%
0.00%0.0%
Q4 2015$10,000
+42.9%
19
+58.3%
0.00%0.0%
Q3 2015$7,000
-41.7%
12
-55.6%
0.00%0.0%
Q2 2015$12,000
+1100.0%
27
+440.0%
0.00%
Q1 2015$1,00050.00%
Other shareholders
MARKEL CORP shareholders Q1 2023
NameSharesValueWeighting ↓
Twin Tree Management, LP 7,200$9,197,3520.02%
GROUP ONE TRADING, L.P. 1,800$2,299,3380.01%
SIMPLEX TRADING, LLC 3,100$3,9590.00%
CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0$00.00%
View complete list of MARKEL CORP shareholders