GROUP ONE TRADING, L.P. - SIRIUS XM RADIO INC ownership

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SIRIUS XM RADIO INC's ticker is and the CUSIP is 82967N908. A total of 4 filers reported holding SIRIUS XM RADIO INC in Q3 2013. The put-call ratio across all filers is - and the average weighting 0.1%.

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Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of SIRIUS XM RADIO INC
ValueSharesWeighting
Q4 2013$8,604,000
-18.3%
2,465,300
-9.4%
0.13%
-35.6%
Q3 2013$10,533,000
+28.4%
2,721,600
+11.1%
0.20%0.0%
Q2 2013$8,204,000–2,448,900–0.20%–
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Other shareholders
SIRIUS XM RADIO INC shareholders Q3 2013
NameSharesValueWeighting ↓
GROUP ONE TRADING, L.P. 2,721,600$10,533,0000.20%
SG Americas Securities, LLC 2,000,000$3,800,0000.02%
Citadel Advisors 701,400$2,714,0000.00%
Timber Hill LLC 31,500$122,0000.00%
View complete list of SIRIUS XM RADIO INC shareholders