SpiderRock Trading LLC - INTERACTIVE BROKERS ownership

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INTERACTIVE BROKERS's ticker is and the CUSIP is 45841N10. A total of 2 filers reported holding INTERACTIVE BROKERS in Q2 2014. The put-call ratio across all filers is - and the average weighting 0.0%.

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Filings
Quarter-by-quarter ownership
SpiderRock Trading LLC ownership history of INTERACTIVE BROKERS
ValueSharesWeighting
Q4 2014$1,000
-66.7%
24
-97.6%
0.00%
-70.0%
Q3 2014$3,000
+50.0%
1,000
+233.3%
0.01%
+11.1%
Q2 2014$2,000
-97.7%
300
-91.7%
0.01%
-98.1%
Q4 2013$88,000–3,600–0.48%–
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Other shareholders
INTERACTIVE BROKERS shareholders Q2 2014
NameSharesValueWeighting ↓
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 95,026$2,213,0000.01%
SpiderRock Trading LLC 100$2,0000.01%
SpiderRock Trading LLC 200$00.00%
View complete list of INTERACTIVE BROKERS shareholders