GROUP ONE TRADING, L.P. - BARRETT BUSINESS SERVICES IN ownership

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BARRETT BUSINESS SERVICES IN's ticker is and the CUSIP is 68463908. A total of 2 filers reported holding BARRETT BUSINESS SERVICES IN in Q4 2014. 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 BARRETT BUSINESS SERVICES IN
ValueSharesWeighting
Q3 2015$550,000
+19.3%
12,800
+0.8%
0.01%
+33.3%
Q2 2015$461,000
+880.9%
12,700
+1054.5%
0.01%
+500.0%
Q1 2015$47,000
+56.7%
1,1000.0%0.00%–
Q4 2014$30,000–1,100–0.00%–
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Other shareholders
BARRETT BUSINESS SERVICES IN shareholders Q4 2014
NameSharesValueWeighting ↓
GROUP ONE TRADING, L.P. 1,100$30,0000.00%
SIMPLEX TRADING, LLC 8$1,0000.00%
View complete list of BARRETT BUSINESS SERVICES IN shareholders