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CoStar Group

791 hedge funds and large institutions have $16.4B invested in CoStar Group in 2026 Q1 according to their latest regulatory filings, with 125 funds opening new positions, 307 increasing their positions, 276 reducing their positions, and 164 closing their positions.

New
Increased
Maintained
Reduced
Closed

262% more call options, than puts

Call options by funds: $142M | Put options by funds: $39.3M

11% more repeat investments, than reductions

Existing positions increased: 307 | Existing positions reduced: 276

0.54% less ownership

Funds ownership: 97.52%96.98% (-0.54%)

7% less funds holding

Funds holding: 846791 (-55)

24% less first-time investments, than exits

New positions opened: 125 | Existing positions closed: 164

41% less capital invested

Capital invested by funds: $27.8B → $16.4B (-$11.3B)

59% less funds holding in top 10

Funds holding in top 10: 177 (-10)

Holders
791
Holders Change
-55
Holders Change %
-6.5%
% of All Funds
9.74%
Holding in Top 10
7
Holding in Top 10 Change
-10
Holding in Top 10 Change %
-58.82%
% of All Funds
0.09%
New
125
Increased
307
Reduced
276
Closed
164
Calls
$142M
Puts
$39.3M
Net Calls
+$103M
Net Calls Change
+$7.38M
Name Holding Trade Value Shares
Change
Change in
Stake
KK
176
KLP Kapitalforvaltning
Norway
$6.18M
MFWM
177
Motley Fool Wealth Management
Virginia
$6.17M -$2.63M -50,446 -25%
State of New Jersey Common Pension Fund D
178
State of New Jersey Common Pension Fund D
New Jersey
$5.86M
Natixis Advisors
179
Natixis Advisors
Massachusetts
$5.83M -$15M -288,361 -67%
NIM
180
Needham Investment Management
New York
$5.73M +$4.24M +81,500 +135%
Credit Agricole
181
Credit Agricole
France
$5.66M -$1.33M -25,473 -15%
LF
182
Lansforsakringar Fondforvaltning
Sweden
$5.58M +$119K +2,291 +2%
P
183
PensionDanmark
Denmark
$5.57M -$479K -9,204 -6%
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
184
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$5.52M -$511K -9,819 -7%
Cetera Investment Advisers
185
Cetera Investment Advisers
Illinois
$5.5M -$768K -14,746 -10%
LI
186
Louisbourg Investments
New Brunswick, Canada
$5.39M +$4.41M +84,764 +94%
Toronto Dominion Bank
187
Toronto Dominion Bank
Ontario, Canada
$5.33M -$1.04M -20,039 -13%
Daiwa Securities Group
188
Daiwa Securities Group
Japan
$5.32M +$385K +7,399 +6%
RAM
189
Resona Asset Management
Japan
$5.3M +$299K +5,737 +5%
FAF
190
Fjarde Ap-fonden
Sweden
$5.28M +$2.76M +53,100 +68%
Jones Financial Companies
191
Jones Financial Companies
Missouri
$5.26M +$6.69M +128,599 +3,408%
ER
192
EVR Research
Virginia
$5.24M +$6.77M +130,000 New
TC
193
TwinBeech Capital
New York
$5.16M +$6.51M +125,016 +4,167%
AI
194
ArchPoint Investors
Florida
$5.12M +$6.61M +127,000 New
HighTower Advisors
195
HighTower Advisors
Illinois
$5.01M -$222K -4,267 -3%
Millennium Management
196
Millennium Management
New York
$4.99M -$24.9M -478,385 -79%
Ohio Public Employees Retirement System (OPERS)
197
Ohio Public Employees Retirement System (OPERS)
Ohio
$4.96M -$204K -3,919 -3%
Handelsbanken Fonder
198
Handelsbanken Fonder
Sweden
$4.92M +$176K +3,383 +3%
Public Sector Pension Investment Board (PSP Investments)
199
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$4.87M +$661K +12,696 +12%
LIP
200
Landmark Investment Partners
Florida
$4.84M -$1.8M -34,514 -22%