GROUP ONE TRADING, L.P. - NORTHWEST PIPE CO ownership

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NORTHWEST PIPE CO's ticker is and the CUSIP is 667746901. A total of 3 filers reported holding NORTHWEST PIPE CO in Q1 2021. 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 NORTHWEST PIPE CO
ValueSharesWeighting
Q4 2021$3,000
+50.0%
1000.0%0.00%–
Q3 2021$2,000
-99.7%
100
-99.4%
0.00%
-100.0%
Q1 2021$575,000
+230.5%
17,200
+55.0%
0.00%
-50.0%
Q1 2017$174,000–11,100–0.00%–
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Other shareholders
NORTHWEST PIPE CO shareholders Q1 2021
NameSharesValueWeighting ↓
GROUP ONE TRADING, L.P. 17,200$575,0000.00%
CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0$00.00%
SIMPLEX TRADING, LLC 28$93,0000.00%
View complete list of NORTHWEST PIPE CO shareholders