ST
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SpiderRock Trading’s Interactive Brokers IBKR Stock Holding History

SpiderRock Trading’s Portfolio IBKR Stock Details IBKR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2014
Q4 		– Hold
0
– – – 758
2014
Q2 		– Hold
0
– – – 875
2013
Q4 		– Hold
0
– – – 20

Other funds holding IBKR

KM
Kylin Management New York $173M AUM 39.51% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
AA
Ancient Art Austin, Texas $489M AUM 53.42% 1-Year Est. Return
RIM
RS Investment Management San Francisco, California $9.73B AUM 3.24% 1-Year Est. Return
BFA
BlackRock Fund Advisors San Francisco, California $542B AUM 18.13% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
RCG
Ruane, Cunniff & Goldfarb New York $6.43B AUM 18.44% 1-Year Est. Return
Grantham, Mayo, Van Otterloo & Co (GMO)
Grantham, Mayo, Van Otterloo & Co (GMO) Boston, Massachusetts $44.4B AUM 36.05% 1-Year Est. Return
AVC
Arlington Value Capital Salt Lake City, Utah $688M AUM 23.52% 1-Year Est. Return