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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
QCM
326
Qsemble Capital Management
New York
$1.43M +$1.84M +35,343 New
SC
327
Scotia Capital
Ontario, Canada
$1.41M +$89K +1,709 +5%
LIP
328
Liontrust Investment Partners
United Kingdom
$1.41M +$351K +6,734 +24%
PCS
329
Personal CFO Solutions
New Jersey
$1.4M +$1.23M +23,614 +215%
FG
330
Formula Growth
Quebec, Canada
$1.37M
ECM
331
EagleClaw Capital Management
Massachusetts
$1.36M -$20.8K -400 -1%
LRPA
332
L. Roy Papp & Associates
Arizona
$1.33M -$19K -365 -1%
GIBU
333
Gulf International Bank (UK)
United Kingdom
$1.32M +$576K +11,069 +51%
PA
334
Profund Advisors
Maryland
$1.31M -$423K -8,126 -20%
PS
335
Principal Securities
Iowa
$1.31M +$217K +4,171 +15%
Schroder Investment Management Group
336
Schroder Investment Management Group
United Kingdom
$1.3M -$54.5K -1,046 -3%
SC
337
Skylands Capital
Wisconsin
$1.29M +$781K +15,000 +88%
BOC
338
Barbara Oil Co
Illinois
$1.29M
DADC
339
D.A. Davidson & Co
Montana
$1.26M -$123K -2,354 -7%
HFM
340
Harvest Fund Management
China
$1.25M -$33.2K -637 -2%
QCM
341
QRG Capital Management
Illinois
$1.25M +$260K +4,987 +19%
SW
342
SlateStone Wealth
Florida
$1.24M -$76.1K -1,461 -5%
BMSSC
343
B. Metzler seel. Sohn & Co
Germany
$1.24M +$440K +8,461 +38%
CF
344
Centaurus Financial
California
$1.23M -$61.7K -1,186 -4%
Osaic Holdings
345
Osaic Holdings
Arizona
$1.23M +$906K +17,394 +133%
AC
346
AXQ Capital
New Jersey
$1.23M +$1.59M +30,465 New
IMCOOI
347
Investment Management Corp of Ontario (IMCO)
Canada
$1.23M -$441K -8,474 -22%
VPIM
348
Vanguard Personalized Indexing Management
California
$1.2M +$97.3K +1,870 +7%
MCC
349
Malaga Cove Capital
California
$1.19M -$69.6K -1,336 -4%
P
350
&Partners
Tennessee
$1.15M +$288K +5,527 +24%