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INTERACTIVE BROKERS GROUP IN
INTERACTIVE BROKERS GROUP IN. Institutional holdings reported to the SEC.

Institutional Holders (2015Q3)
Portfolio Summary: 3 Institutional holders with a total value of $1,945,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 CITADEL ADVISORS LLC 49,000 1,934,000 99.43% Put
2 SIMPLEX TRADING, LLC 34 7,000 0.36% Put
3 GROUP ONE TRADING LLC 100 4,000 0.21% Put

From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.