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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
DnB Asset Management
226
DnB Asset Management
Norway
$3.56M +$157K +3,015 +4%
GFM
227
GF Fund Management
China
$3.5M -$133K -2,546 -3%
Nordea Investment Management
228
Nordea Investment Management
Sweden
$3.48M +$2.22M +42,655 +96%
II
229
IFM Investors
Australia
$3.46M +$141K +2,711 +3%
OTL
230
Oak Thistle LLC
New York
$3.42M +$3.36M +64,553 +318%
PNC Financial Services Group
231
PNC Financial Services Group
Pennsylvania
$3.42M +$439K +8,437 +11%
VOYA Investment Management
232
VOYA Investment Management
Georgia
$3.41M -$7.29K -140 -0.2%
ETC
233
Exchange Traded Concepts
Oklahoma
$3.41M +$914K +17,552 +26%
CAU
234
Caxton Associates (UK)
$3.39M +$4.37M +83,948 New
SAM
235
SEB Asset Management
$3.36M +$4.34M +83,393 New
WP
236
Woodline Partners
California
$3.35M +$557K +10,704 +15%
AI
237
Atria Investments
North Carolina
$3.3M +$2.14M +41,024 +101%
SW
238
Solidarity Wealth
Utah
$3.28M +$1.07M +20,634 +34%
SO
239
STRS Ohio
Ohio
$3.27M -$781 -15 -0%
Fifth Third Bancorp
240
Fifth Third Bancorp
Ohio
$3.26M +$3.79M +72,872 +926%
MML Investors Services
241
MML Investors Services
Massachusetts
$3.24M -$627K -12,040 -13%
M
242
Mirova
France
$3.17M +$4.09M +78,550 New
AB
243
Amalgamated Bank
New York
$3.16M -$76.7K -1,473 -2%
Corient Private Wealth
244
Corient Private Wealth
Florida
$3.16M -$6.82M -131,017 -62%
UIM
245
USS Investment Management
United Kingdom
$3.14M +$177K +3,398 +5%
IPAM
246
ICICI Prudential Asset Management
India
$3.13M +$3.68M +70,756 +1,040%
PIM
247
Platinum Investment Management
Australia
$3.13M +$651K +12,500 +19%
X
248
Xponance
Pennsylvania
$3.09M +$486K +9,328 +14%
EP
249
Edgestream Partners
New Jersey
$3M +$3.05M +58,626 +371%
VU
250
Vanderbilt University
Tennessee
$2.98M -$2.79M -53,507 -42%