SIMPLEX TRADING, LLC - STANDARD MTR PRODS INC ownership

STANDARD MTR PRODS INC's ticker is and the CUSIP is 853666905. A total of 2 filers reported holding STANDARD MTR PRODS INC in Q1 2021. The put-call ratio across all filers is - and the average weighting 0.0%.

Quarter-by-quarter ownership
SIMPLEX TRADING, LLC ownership history of STANDARD MTR PRODS INC
ValueSharesWeighting
Q2 2023$172
-0.6%
4,600
-2.1%
0.00%
Q1 2023$173
+284.4%
4,700
+261.5%
0.00%
Q4 2022$45
-100.0%
1,300
-78.7%
0.00%
Q3 2022$198,000
+241.4%
6,100
+369.2%
0.00%
Q2 2022$58,000
+383.3%
1,300
+333.3%
0.00%
Q1 2022$12,000
-78.6%
300
-76.9%
0.00%
Q3 2021$56,0000.0%1,3000.0%0.00%
Q2 2021$56,000
+366.7%
1,300
+43233.3%
0.00%
Q1 2021$12,000
-93.7%
3
-93.6%
0.00%
Q4 2020$190,000
+2275.0%
47
+2250.0%
0.00%
Q3 2020$8,000
-90.8%
2
-88.9%
0.00%
Q3 2019$87,000
+7.4%
180.0%0.00%
Q2 2019$81,000
-40.9%
18
-35.7%
0.00%
Q1 2019$137,000
+185.4%
28
+180.0%
0.00%
Q4 2018$48,000100.00%
Other shareholders
STANDARD MTR PRODS INC shareholders Q1 2021
NameSharesValueWeighting ↓
CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0$00.00%
SIMPLEX TRADING, LLC 3$12,0000.00%
View complete list of STANDARD MTR PRODS INC shareholders