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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
Chevy Chase Trust
151
Chevy Chase Trust
Maryland
$8.43M -$317K -6,083 -3%
KCM
152
Kornitzer Capital Management
Kansas
$8.38M -$867K -16,650 -7%
DB
153
Danske Bank
Denmark
$8.37M -$569K -10,926 -5%
GT
154
Glenmede Trust
Pennsylvania
$8.35M +$6.77M +129,997 +169%
Prudential Financial
155
Prudential Financial
New Jersey
$8.31M -$307K -5,891 -3%
New York State Common Retirement Fund
156
New York State Common Retirement Fund
New York
$8.28M -$1.17M -22,500 -10%
XT
157
XTX Topco
Cayman Islands
$8.12M +$10.3M +197,842 +5,693%
YL
158
YCG LLC
Texas
$7.91M -$8.5M -163,245 -45%
SCM
159
Sone Capital Management
New York
$7.63M -$11.9M -227,887 -55%
DekaBank Deutsche Girozentrale
160
DekaBank Deutsche Girozentrale
Germany
$7.51M
Asset Management One
161
Asset Management One
Japan
$7.48M +$109K +2,096 +1%
Korea Investment Corp
162
Korea Investment Corp
South Korea
$7.42M -$1.11M -21,246 -10%
APG Asset Management
163
APG Asset Management
Netherlands
$7.36M -$419K -8,052 -4%
Public Employees Retirement Association of Colorado
164
Public Employees Retirement Association of Colorado
Colorado
$7.33M -$1.8M -34,600 -16%
CA
165
Cortland Associates
Missouri
$7.3M -$111K -2,125 -1%
Tudor Investment Corp
166
Tudor Investment Corp
Connecticut
$7.23M -$1.34M -25,717 -13%
Treasurer of the State of North Carolina
167
Treasurer of the State of North Carolina
North Carolina
$7.21M +$198K +3,812 +2%
CIBC Asset Management
168
CIBC Asset Management
Ontario, Canada
$7.14M -$1.19M -22,812 -11%
Zurich Cantonal Bank
169
Zurich Cantonal Bank
Switzerland
$6.95M -$296K -5,683 -3%
LA
170
LBP AM
France
$6.93M +$361K +6,929 +4%
Nomura Asset Management
171
Nomura Asset Management
Japan
$6.61M +$421K +8,080 +5%
Cerity Partners
172
Cerity Partners
New York
$6.55M +$3.69M +70,935 +77%
TAF
173
Tredje AP-fonden
Sweden
$6.52M +$6.3M +120,971 +297%
GIM
174
Granahan Investment Management
Massachusetts
$6.5M +$3.6M +69,118 +75%
COPPSERS
175
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$6.28M +$2.97M +57,142 +58%