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CoStar Group

833 hedge funds and large institutions have $27.8B invested in CoStar Group in 2025 Q4 according to their latest regulatory filings, with 96 funds opening new positions, 272 increasing their positions, 382 reducing their positions, and 141 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

less ownership

Funds ownership:

less funds holding

Funds holding:

less capital invested

Capital invested by funds: $ → $

29% less repeat investments, than reductions

Existing positions increased: 272 | Existing positions reduced: 382

32% less first-time investments, than exits

New positions opened: 96 | Existing positions closed: 141

32% less funds holding in top 10

Funds holding in top 10: 2517 (-8)

Holders
833
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
17
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$205M
Puts
$111M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
Squarepoint
76
Squarepoint
New York
$53.5M
JP Morgan Chase
77
JP Morgan Chase
New York
$51.9M
RhumbLine Advisers
78
RhumbLine Advisers
Massachusetts
$51.7M
ProShare Advisors
79
ProShare Advisors
Maryland
$50.7M
PCM
80
Peregrine Capital Management
Minnesota
$50.4M
Canada Pension Plan Investment Board
81
Canada Pension Plan Investment Board
Ontario, Canada
$49.9M
California Public Employees Retirement System
82
California Public Employees Retirement System
California
$49.2M
WIM
83
Weitz Investment Management
Nebraska
$48.4M
First Trust Advisors
84
First Trust Advisors
Illinois
$47.3M
DLA
85
Douglas Lane & Associates
New York
$45.9M
California State Teachers Retirement System (CalSTRS)
86
California State Teachers Retirement System (CalSTRS)
California
$45.9M
National Pension Service
87
National Pension Service
South Korea
$45.9M
Fidelity International
88
Fidelity International
Bermuda
$43M
Kayne Anderson Rudnick Investment Management
89
Kayne Anderson Rudnick Investment Management
California
$42.7M
PTC
90
Petrus Trust Company
Texas
$42.3M
SEI Investments
91
SEI Investments
Pennsylvania
$41.8M
JCM
92
Junto Capital Management
New York
$41.4M
Ameriprise
93
Ameriprise
Minnesota
$41.4M
Citadel Advisors
94
Citadel Advisors
Florida
$40.6M
Millennium Management
95
Millennium Management
New York
$40.5M
Caisse de Depot et Placement du Quebec (CDPQ)
96
Caisse de Depot et Placement du Quebec (CDPQ)
Quebec, Canada
$39.5M
Ensign Peak Advisors
97
Ensign Peak Advisors
Utah
$38.9M
Russell Investments Group
98
Russell Investments Group
United Kingdom
$36.8M
Raymond James Financial
99
Raymond James Financial
Florida
$34.2M
Mitsubishi UFJ Trust & Banking
100
Mitsubishi UFJ Trust & Banking
Japan
$32.1M