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CoStar Group

881 hedge funds and large institutions have $34.8B invested in CoStar Group in 2025 Q3 according to their latest regulatory filings, with 105 funds opening new positions, 351 increasing their positions, 308 reducing their positions, and 62 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

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

more first-time investments, than exits

New positions opened: | Existing positions closed:

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more funds holding

Funds holding:

2% more capital invested

Capital invested by funds: $34.1B → $34.8B (+$693M)

3.09% less ownership

Funds ownership: 100.61%97.52% (-3.1%)

4% less funds holding in top 10

Funds holding in top 10: 2625 (-1)

Holders
881
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
25
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$199M
Puts
$81.5M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
IMCOOI
401
Investment Management Corp of Ontario (IMCO)
Canada
$1.67M
TI
402
Tidal Investments
Wisconsin
$1.67M
BOSSRA
403
B.O.S.S. Retirement Advisors
Utah
$1.66M
VIA
404
Virtus Investment Advisers
Connecticut
$1.66M
XT
405
XTX Topco
Cayman Islands
$1.64M
BMSSC
406
B. Metzler seel. Sohn & Co
Germany
$1.63M
QWP
407
Quotient Wealth Partners
Texas
$1.63M
KeyBank National Association
408
KeyBank National Association
Ohio
$1.63M
KAS
409
Kestra Advisory Services
Texas
$1.6M
Bessemer Group
410
Bessemer Group
New Jersey
$1.58M
UFF
411
USA Financial Formulas
Michigan
$1.58M
TRCT
412
Tower Research Capital (TRC)
New York
$1.55M
CB
413
Commerce Bank
Missouri
$1.54M
AIP
414
Ameritas Investment Partners
Nebraska
$1.52M
OTL
415
Oak Thistle LLC
New York
$1.49M
DILIC
416
Dai-ichi Life Insurance Company
Japan
$1.47M
M&T Bank
417
M&T Bank
New York
$1.46M
OAC
418
OMERS Administration Corp
Ontario, Canada
$1.44M
MMEA
419
Main Management ETF Advisors
California
$1.44M
NG
420
Norden Group
Utah
$1.43M
WWM
421
Waterway Wealth Management
Texas
$1.4M
MFS
422
Mirabella Financial Services
United Kingdom
$1.38M
IFWM
423
Institute for Wealth Management
Colorado
$1.37M
BAMF
424
BI Asset Management Fondsmaeglerselskab
Denmark
$1.37M
AC
425
Allstate Corporation
Illinois
$1.36M