GROUP ONE TRADING, L.P. - XYRATEX LTD ownership

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XYRATEX LTD's ticker is and the CUSIP is G98268958. A total of 2 filers reported holding XYRATEX LTD in Q4 2013. 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 XYRATEX LTD
ValueSharesWeighting
Q1 2014$271,000
+256.6%
20,500
+259.6%
0.01%
+400.0%
Q4 2013$76,000
+590.9%
5,700
+470.0%
0.00%–
Q3 2013$11,000
+1000.0%
1,000
+900.0%
0.00%–
Q2 2013$1,000–100–0.00%–
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Other shareholders
XYRATEX LTD shareholders Q4 2013
NameSharesValueWeighting ↓
GROUP ONE TRADING, L.P. 5,700$76,0000.00%
Citadel Advisors 7,800$104,0000.00%
View complete list of XYRATEX LTD shareholders