GROUP ONE TRADING LLC - SIGMA LABS INC ownership

SIGMA LABS INC's ticker is and the CUSIP is 826598950. A total of 1 filers reported holding SIGMA LABS INC in Q1 2023. The put-call ratio across all filers is - and the average weighting 0.0%.

Quarter-by-quarter ownership
GROUP ONE TRADING LLC ownership history of SIGMA LABS INC
ValueSharesWeighting
Q4 2022$1,800
-55.0%
4,5000.0%0.00%
Q3 2022$4,000
-33.3%
4,5000.0%0.00%
Q2 2022$6,000
-75.0%
4,500
-61.2%
0.00%
Q1 2022$24,00011,6000.00%
Other shareholders
SIGMA LABS INC shareholders Q1 2023
NameSharesValueWeighting ↓
CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0$00.00%
View complete list of SIGMA LABS INC shareholders