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ROCKWOOD RESEARCH · A CORPORATE FILINGS WEBSITE|STRAIGHT FROM THE SOURCE · SEC EDGAR|SPONSOREDYour message on this tape — bid on the Rockwood Ad Exchange · Rockwood Ad Exchange|
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IBKR

Interactive Brokers Group, Inc.

Security Brokers, Dealers & Flotation Companies · SIC 6211CIK 1381197Held by 16 tracked managersEDGAR filings ↗10-K/10-Q ↗

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16 managers · latest 13F per manager (2 periods)
Oakcliff Capital
Bryan LawrencePosition history →
33.4%
—
Ancient Art
Ancient ArtPosition history →
22.9%
—
Bares Capital Management
Bares Capital ManagementPosition history →
13.1%
(31.6%)
RV Capital
Robert VinallPosition history →
12.8%
(26.0%)
Cantillon Capital Management
William Von MuefflingPosition history →
6.8%
(95.4%)
Egerton Capital
John ArmitagePosition history →
3.5%
(34.2%)
Orbis Investment Management
Orbis Investment ManagementPosition history →
1.8%
(0.8%)
Viking Global Investors
Andreas HalvorsenPosition history →
1.2%
+246.5%
Lone Pine Capital
Stephen MandelPosition history →
0.31%
NEW
Soros Fund Management
Soros family officePosition history →
0.17%
(76.5%)
Motley Fool Asset Management
Motley Fool Asset ManagementPosition history →
0.11%
+349.0%
Holocene Advisors
Holocene AdvisorsPosition history →
0.06%
+1,392.8%
Adage Capital Management
Adage Capital ManagementPosition history →
0.05%
(0.5%)
Capital World Investors
Capital World InvestorsPosition history →
0.03%
+7.4%
Bridgewater Associates
Bridgewater AssociatesPosition history →
0.02%
(41.8%)
WCM Investment Management
WCM Investment ManagementPosition history →
<0.01%
+4.3%

Weight = position value ÷ the manager's total 13F long-equity value in the same filing — one definition for every row. “1st obs.” marks a position with no earlier stored 13F to compare against — it is not shown as a purchase.