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CoStar Group

834 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, 271 increasing their positions, 384 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: 271 | Existing positions reduced: 384

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
834
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
Schroder Investment Management Group
326
Schroder Investment Management Group
United Kingdom
$2.23M
Walleye Capital
327
Walleye Capital
New York
$2.18M
SCM
328
Sterling Capital Management
North Carolina
$2.17M
SW
329
SlateStone Wealth
Florida
$2.17M
BOC
330
Barbara Oil Co
Illinois
$2.15M
DGM
331
Delta Global Management
New York
$2.14M
CF
332
Centaurus Financial
California
$2.13M
HFM
333
Harvest Fund Management
China
$2.13M
MSU
334
Mizuho Securities USA
New York
$2.12M
MCC
335
Malaga Cove Capital
California
$2.07M
N
336
Numerai
California
$2.03M
Mercer Global Advisors
337
Mercer Global Advisors
Colorado
$1.95M
SI
338
Stephens Inc
Arkansas
$1.94M
GIA
339
Gateway Investment Advisers
Ohio
$1.94M
LIP
340
Liontrust Investment Partners
United Kingdom
$1.9M
Lido Advisors
341
Lido Advisors
California
$1.9M
PS
342
Principal Securities
Iowa
$1.9M
TRCT
343
Tower Research Capital (TRC)
New York
$1.9M
IIM
344
INTECH Investment Management
Florida
$1.89M
VPIM
345
Vanguard Personalized Indexing Management
California
$1.87M
DEA
346
DoubleLine ETF Adviser
Florida
$1.85M
ALMGDA
347
AG2R La Mondiale Gestion d'Actifs
France
$1.84M
GAM
348
Generali Asset Management
Italy
$1.83M
HA
349
Harbor Advisors
Florida
$1.79M
Wealthfront Advisers
350
Wealthfront Advisers
California
$1.77M