GROUP ONE TRADING, L.P. - SIGMA LABS INC ownership

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SIGMA LABS INC's ticker is and the CUSIP is 826598950. A total of 2 filers reported holding SIGMA LABS INC in Q3 2022. The put-call ratio across all filers is - and the average weighting 0.0%.

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Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. 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$24,000–11,600–0.00%–
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Other shareholders
SIGMA LABS INC shareholders Q3 2022
NameSharesValueWeighting ↓
CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0$00.00%
GROUP ONE TRADING, L.P. 4,500$4,0000.00%
View complete list of SIGMA LABS INC shareholders