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CoStar Group

846 hedge funds and large institutions have $27.8B invested in CoStar Group in 2025 Q4 according to their latest regulatory filings, with 103 funds opening new positions, 274 increasing their positions, 386 reducing their positions, and 142 closing their positions.

New
Increased
Maintained
Reduced
Closed

86% more call options, than puts

Call options by funds: $207M | Put options by funds: $111M

0.11% less ownership

Funds ownership: 97.63%97.52% (-0.11%)

6% less funds holding

Funds holding: 903846 (-57)

20% less capital invested

Capital invested by funds: $34.9B → $27.8B (-$7.08B)

27% less first-time investments, than exits

New positions opened: 103 | Existing positions closed: 142

29% less repeat investments, than reductions

Existing positions increased: 274 | Existing positions reduced: 386

32% less funds holding in top 10

Funds holding in top 10: 2517 (-8)

Holders
846
Holders Change
-57
Holders Change %
-6.31%
% of All Funds
10.29%
Holding in Top 10
17
Holding in Top 10 Change
-8
Holding in Top 10 Change %
-32%
% of All Funds
0.21%
New
103
Increased
274
Reduced
386
Closed
142
Calls
$207M
Puts
$111M
Net Calls
+$95.6M
Net Calls Change
-$21.8M
Name Holding Trade Value Shares
Change
Change in
Stake
EAM
126
Erste Asset Management
Austria
$21.5M +$8.5M +120,000 +60%
PCM
127
Prana Capital Management
Connecticut
$21.3M +$10.7M +150,369 +90%
Aberdeen Group
128
Aberdeen Group
United Kingdom
$20.8M -$110K -1,555 -0.5%
Swedbank
129
Swedbank
Sweden
$20.4M +$59.9K +845 +0.3%
Mirae Asset Global ETFs Holdings
130
Mirae Asset Global ETFs Holdings
Hong Kong
$20.3M -$693K -9,790 -3%
NIM
131
NEOS Investment Management
Connecticut
$19.6M +$5.33M +75,292 +35%
Aviva
132
Aviva
United Kingdom
$19M +$989K +13,968 +5%
DekaBank Deutsche Girozentrale
133
DekaBank Deutsche Girozentrale
Germany
$18.6M
Parnassus Investments
134
Parnassus Investments
California
$18.3M -$25.8M -364,286 -57%
Universal-Beteiligungs- und Servicegesellschaft
135
Universal-Beteiligungs- und Servicegesellschaft
Germany
$18.1M +$680K +9,606 +4%
TRSOTSOK
136
Teachers Retirement System of the State of Kentucky
Kentucky
$17.9M +$4.99M +70,421 +36%
FCBT
137
First Citizens Bank & Trust
North Carolina
$17.3M +$9.86M +139,258 +118%
Manulife (Manufacturers Life Insurance)
138
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$17M -$206K -2,910 -1%
ACM
139
Ashford Capital Management
Delaware
$16.7M -$2.32M -32,779 -12%
Envestnet Portfolio Solutions
140
Envestnet Portfolio Solutions
Illinois
$16.5M +$8.7M +122,776 +100%
Rafferty Asset Management
141
Rafferty Asset Management
New York
$16.3M +$3.21M +45,311 +23%
TCP
142
ThornTree Capital Partners
Massachusetts
$16.3M -$19M -268,169 -53%
Stifel Financial
143
Stifel Financial
Missouri
$16.3M -$2.05M -28,952 -11%
GGHC
144
Gilder Gagnon Howe & Co
New York
$16.1M -$2.72M -38,469 -14%
NSGL
145
No Street GP LP
California
$16.1M -$14.9M -210,001 -47%
OAM
146
Oppenheimer Asset Management
New York
$16.1M -$2.46M -34,750 -13%
Jane Street
147
Jane Street
New York
$16M +$8.62M +121,745 +105%
Canada Life
148
Canada Life
Manitoba, Canada
$15.9M -$13.7M -193,299 -45%
SG Americas Securities
149
SG Americas Securities
New York
$15.8M +$16.3M +230,378 +5,103%
TCM
150
Tran Capital Management
California
$15.7M -$2.29M -32,287 -12%