SIMPLEX TRADING, LLC - AMTECH SYS INC ownership

AMTECH SYS INC's ticker is and the CUSIP is 032332904. A total of 2 filers reported holding AMTECH SYS INC in Q4 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 AMTECH SYS INC
ValueSharesWeighting
Q3 2023$6
-50.0%
900
-30.8%
0.00%
Q2 2023$121,300
+1200.0%
0.00%
Q1 2023$0
-100.0%
100
-75.0%
0.00%
Q4 2022$3
-99.9%
400
-33.3%
0.00%
Q3 2022$5,000
+150.0%
600
+50.0%
0.00%
Q2 2022$2,000
-71.4%
400
-42.9%
0.00%
Q1 2022$7,000700
+600.0%
0.00%
Q4 2021$01000.0%0.00%
Q3 2021$01000.0%0.00%
Q2 2021$0
-100.0%
100
+132.6%
0.00%
Q1 2021$50,000
+42.9%
43
-21.8%
0.00%
Q4 2020$35,000
+337.5%
55
+223.5%
0.00%
Q3 2020$8,000
+100.0%
17
+183.3%
0.00%
Q4 2019$4,000
+100.0%
6
+50.0%
0.00%
Q3 2019$2,000
-50.0%
4
-63.6%
0.00%
Q4 2018$4,000
+33.3%
11
+83.3%
0.00%
Q3 2018$3,000
-75.0%
6
-71.4%
0.00%
Q2 2018$12,00021
+40.0%
0.00%
Q1 2018$015
-31.8%
0.00%
Q4 2017$0
-100.0%
22
-72.2%
0.00%
Q3 2017$3,00079
+7800.0%
0.00%
Q2 2017$01
-90.9%
0.00%
Q1 2017$011
+266.7%
0.00%
Q3 2016$030.0%0.00%
Q2 2016$030.0%0.00%
Q1 2016$030.00%
Other shareholders
AMTECH SYS INC shareholders Q4 2020
NameSharesValueWeighting ↓
CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0$00.00%
SIMPLEX TRADING, LLC 55$35,0000.00%
View complete list of AMTECH SYS INC shareholders