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CoStar Group
CSGP

903 hedge funds and large institutions have $34.9B invested in CoStar Group in 2025 Q3 according to their latest regulatory filings, with 108 funds opening new positions, 361 increasing their positions, 314 reducing their positions, and 63 closing their positions.

New
Increased
Maintained
Reduced
Closed

144% more call options, than puts

Call options by funds: $199M | Put options by funds: $81.5M

71% more first-time investments, than exits

New positions opened: 108 | Existing positions closed: 63

15% more repeat investments, than reductions

Existing positions increased: 361 | Existing positions reduced: 314

4% more funds holding

Funds holding: 871 → 903 (+32)

2% more capital invested

Capital invested by funds: $34.2B → $34.9B (+$698M)

3.07% less ownership

Funds ownership: 100.7% → 97.63% (-3.1%)

4% less funds holding in top 10

Funds holding in top 10: 26 → 25 (-1)

Holders
903
Holders Change
+32
Holders Change %
+3.67%
% of All Funds
11.85%
Holding in Top 10
25
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-3.85%
% of All Funds
0.33%
New
108
Increased
361
Reduced
314
Closed
63
Calls
$199M
Puts
$81.5M
Net Calls
+$117M
Net Calls Change
+$34.8M

Top Buyers

1
N
Nuveen
North Carolina
+$214M
2
Janus Henderson Group
Janus Henderson Group
United Kingdom
+$193M
3
Citadel Advisors
Citadel Advisors
Florida
+$150M
4
Vanguard Group
Vanguard Group
Pennsylvania
+$107M
5
Morgan Stanley
Morgan Stanley
New York
+$100M

Top Sellers

1
Capital International Investors
Capital International Investors
California
-$710M
2
T. Rowe Price Investment Management
T. Rowe Price Investment Management
Maryland
-$264M
3
Bank of America
Bank of America
North Carolina
-$126M
4
Viking Global Investors
Viking Global Investors
Connecticut
-$121M
5
SCM
SG Capital Management
Illinois
-$74.7M
Name Holding Trade Value Shares
Change 		Change in
Stake
MSWM
876
Mowery & Schoenfeld Wealth Management
Illinois
$844 – – –
WWM
877
Wolff Wiese Magana
California
$844 – – –
BFS
878
Bare Financial Services
Pennsylvania
$844 +$884 +10 New
KFI
879
Key Financial Inc
Pennsylvania
$835 – – –
TWC
880
TD Waterhouse Canada
Ontario, Canada
$754 – – –
ACA
881
American Capital Advisory
Idaho
$591 +$88 +1 +17%
SFCL
882
Strengthening Families & Communities LLC
Massachusetts
$590 – – –
BLC
883
Brown, Lisle/Cummings
Rhode Island
$506 – – –
HNW
884
High Note Wealth
Minnesota
$422 +$442 +5 New
HC
885
Hurley Capital
New York
$422 +$442 +5 New
HFS
886
Hughes Financial Services
Virginia
$403 -$1.24K -14 -70%
SIS
887
Sound Income Strategies
Florida
$388 – – –
TFA
888
Toth Financial Advisory
Virginia
$338 – – –
SA
889
Seneschal Advisors
Washington
$338 +$353 +4 New
GWP
890
Gen-Wealth Partners
Michigan
$337 – – –
TCM
891
TD Capital Management
Tennessee
$337 – – –
DF
892
DecisionPoint Financial
Arizona
$334 – – –
LWMI
893
Legacy Wealth Management (Idaho)
Idaho
$254 – – –
VFM
894
Vision Financial Markets
Connecticut
$254 – – –
BHWM
895
Beaird Harris Wealth Management
Texas
$254 +$265 +3 New
PAM
896
Palisade Asset Management
Minnesota
$254 +$265 +3 New
BCWM
897
Bartlett & Co Wealth Management
Ohio
$253 +$88 +1 +50%
CWP
898
Clark Wealth Partners
Illinois
$202 -$442 -5 -63%
Parallax Volatility Advisers
899
Parallax Volatility Advisers
California
$169 +$177 +2 New
HCM
900
Hollencrest Capital Management
California
$84 – – –
34 35
36
37 38

CSGP Hedge Fund Activity: Q3 2025 in Review

903 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in CoStar Group (CSGP) for Q3 2025, worth a combined $34.9B — up 2% from $34.2B a quarter earlier.

Buyers outnumbered sellers: 108 funds opened new CSGP positions and 63 closed out — a net gain of 45 holders — while 361 added to existing stakes and 314 trimmed.

The largest buyer was Nuveen, adding an estimated $214M. The largest seller was Capital International Investors, cutting an estimated $710M.

  • 903 institutional investors held CoStar Group (CSGP) as of Q3 2025, up from 871 in Q2 2025.
  • Funds reported $34.9B of CoStar Group stock for Q3 2025, up 2% quarter-over-quarter.
  • 108 funds opened new CoStar Group positions in Q3 2025 and 63 closed out, a net change of +45 holders.
  • The largest CoStar Group buyer in Q3 2025 was Nuveen, an estimated $214M added.
  • The largest CoStar Group seller in Q3 2025 was Capital International Investors, an estimated $710M sold.

Based on aggregated 13F filings for Q3 2025.