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Name Holding Trade Value Shares
Change
Change in
Stake
CI Investments Inc
1976
CI Investments Inc
Ontario, Canada
– -$32.8M -301,806 Closed
ACPU
1977
Arrowgrass Capital Partners (US)
Delaware
– -$28.6M -224,736 Closed
CCM
1978
Check Capital Management
California
– -$23.1M -212,244 Closed
SBCM
1979
Schwerin Boyle Capital Management
Massachusetts
– -$20.3M -186,366 Closed
QIM
1980
Quantitative Investment Management
Virginia
– -$17.8M -164,013 Closed
Simplex Trading
1981
Simplex Trading
Illinois
– -$6.72M -52,746 Closed
AC
1982
Argentiere Capital
Switzerland
– -$5.68M -52,308 Closed
SCM
1983
Sirios Capital Management
Massachusetts
– -$5.27M -48,508 Closed
Walleye Trading
1984
Walleye Trading
New York
– -$6.16M -48,364 Closed
TI
1985
Trexquant Investment
Connecticut
– -$4.46M -41,016 Closed
BAM
1986
Blueshift Asset Management
New Jersey
– -$4.08M -37,523 Closed
MHI
1987
Miller Howard Investments
New York
– -$4M -36,769 Closed
Twin Tree Management
1988
Twin Tree Management
Texas
– -$4.64M -36,385 Closed
Capstone Investment Advisors
1989
Capstone Investment Advisors
New York
– -$4.61M -36,182 Closed
OP
1990
Oldfield Partners
United Kingdom
– -$3.51M -32,321 Closed
CSS
1991
Cubist Systematic Strategies
Connecticut
– -$3.48M -31,981 Closed
Rafferty Asset Management
1992
Rafferty Asset Management
New York
– -$3.37M -30,964 Closed
PCM
1993
Prelude Capital Management
New York
– -$3.91M -30,678 Closed
DAM
1994
Deltec Asset Management
New York
– -$3.26M -30,010 Closed
APFBOT
1995
Amica Pension Fund Board of Trustees
Rhode Island
– -$3.04M -27,946 Closed
MDCM
1996
Morgan Dempsey Capital Management
Wisconsin
– -$3.55M -27,843 Closed
LK
1997
Lumbard & Kellner
New Hampshire
– -$2.99M -27,523 Closed
ARTA
1998
A.R.T. Advisors
New York
– -$2.95M -27,168 Closed
VF
1999
Virtu Financial
New York
– -$2.55M -23,451 Closed
RC
2000
RBO & Co
California
– -$2.41M -22,169 Closed