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Comfort Systems
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Overview Fund Activity

745 hedge funds and large institutions have $18.1B invested in Comfort Systems in 2025 Q2 according to their latest regulatory filings, with 178 funds opening new positions, 265 increasing their positions, 225 reducing their positions, and 49 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
745
Holders Change
+120
Holders Change %
+19.2%
% of All Funds
9.99%
Holding in Top 10
16
Holding in Top 10 Change
+12
Holding in Top 10 Change %
+300%
% of All Funds
0.21%
New
178
Increased
265
Reduced
225
Closed
49
Calls
$78.2M
Puts
$62.1M
Net Calls
+$16.1M
Net Calls Change
+$11.4M

Top Buyers

1
AQR Capital Management
AQR Capital Management
Connecticut
$419M
2
Artisan Partners
Artisan Partners
Wisconsin
$115M
3
TP
Third Point
New York
$99.2M
4
Deutsche Bank
Deutsche Bank
Germany
$115M
5
Fidelity Investments
Fidelity Investments
Massachusetts
$842M

Top Sellers

1
Two Sigma Investments
Two Sigma Investments
New York
$9.61M
2
Millennium Management
Millennium Management
New York
$83.4M
3
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT)
United Kingdom
$53.7M
4
Jennison Associates
Jennison Associates
New York
$1.36M
5
Citadel Advisors
Citadel Advisors
Florida
$34.5M
Name Holding Trade Value Shares
Change 		Shares
Change %
ZIM
176
Zacks Investment Management
Illinois
$7.09M +$2.85M +5,320 +67%
Mariner
177
Mariner
Kansas
$7.09M +$1.98M +3,699 +39%
MG
178
Markel Group
Virginia
$6.97M – – –
PI
179
PineBridge Investments
New York
$6.96M +$1.62M +3,026 +30%
Wealth Enhancement Advisory Services
180
Wealth Enhancement Advisory Services
Minnesota
$6.93M +$2.94M +5,441 +74%
DekaBank Deutsche Girozentrale
181
DekaBank Deutsche Girozentrale
Germany
$6.77M – – –
MCM
182
Moore Capital Management
New York
$6.63M +$6.63M +12,372 New
BA
183
Bridgewater Associates
Connecticut
$6.57M -$61.8M -115,233 -90%
State of New Jersey Common Pension Fund D
184
State of New Jersey Common Pension Fund D
New Jersey
$6.46M -$5.36K -10 -0.1%
YCM
185
Yousif Capital Management
Michigan
$6.43M -$164K -306 -2%
BCI
186
Brinker Capital Investments
Pennsylvania
$6.42M +$79.4K +148 +1%
CL
187
COWA LLC
Oklahoma
$6.4M +$818K +1,525 +15%
CIBC Private Wealth Group
188
CIBC Private Wealth Group
Georgia
$6.22M -$2.06M -3,843 -25%
Ensign Peak Advisors
189
Ensign Peak Advisors
Utah
$6.09M -$3M -5,597 -33%
TRSOTSOK
190
Teachers Retirement System of the State of Kentucky
Kentucky
$6.07M – – –
OSAM
191
O'Shaughnessy Asset Management
Connecticut
$6.07M +$490K +913 +9%
Baird Financial Group
192
Baird Financial Group
Wisconsin
$5.91M +$2.89M +5,386 +95%
Two Sigma Advisers
193
Two Sigma Advisers
New York
$5.9M -$46.5M -86,800 -89%
Citigroup
194
Citigroup
New York
$5.83M -$1.81M -3,373 -24%
SDIC
195
South Dakota Investment Council
South Dakota
$5.67M – – –
WorldQuant Millennium Advisors
196
WorldQuant Millennium Advisors
New York
$5.64M +$5.64M +10,509 New
ACM
197
Aubrey Capital Management
United Kingdom
$5.58M -$161K -300 -3%
State of Wisconsin Investment Board
198
State of Wisconsin Investment Board
Wisconsin
$5.56M -$1.52M -2,835 -21%
ASRS
199
Arizona State Retirement System
Arizona
$5.53M +$53.6K +100 +1%
VF
200
Vest Financial
Virginia
$5.51M +$845K +1,575 +18%
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