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

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SIGMA LABS INC's ticker is and the CUSIP is 826598900. A total of 1 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
Q2 2022$14,000
-22.2%
10,800
+24.1%
0.00%–
Q1 2022$18,000–8,700–0.00%–
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Other shareholders
SIGMA LABS INC shareholders Q3 2022
NameSharesValueWeighting ↓
CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0$00.00%
SIMPLEX TRADING, LLC 23,800$91,0000.00%
View complete list of SIGMA LABS INC shareholders