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Comfort Systems

866 hedge funds and large institutions have $27.4B invested in Comfort Systems in 2025 Q3 according to their latest regulatory filings, with 205 funds opening new positions, 277 increasing their positions, 303 reducing their positions, and 74 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

more funds holding in top 10

Funds holding in top 10:

more funds holding

Funds holding:

9% less repeat investments, than reductions

Existing positions increased: 277 | Existing positions reduced: 303

1.4% less ownership

Funds ownership: 95.71%94.3% (-1.4%)

32% less call options, than puts

Call options by funds: $145M | Put options by funds: $213M

Holders
866
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
24
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$145M
Puts
$213M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
Mariner
151
Mariner
Kansas
$14.6M
AB
152
Amalgamated Bank
New York
$14.5M
BNP Paribas Financial Markets
153
BNP Paribas Financial Markets
France
$14.3M
Kovitz Investment Group Partners
154
Kovitz Investment Group Partners
Illinois
$13.8M
MOACM
155
Mutual of America Capital Management
New York
$13.4M
SGM
156
Scalar Gauge Management
Texas
$13.2M
Treasurer of the State of North Carolina
157
Treasurer of the State of North Carolina
North Carolina
$12.9M
PFSRSONJ
158
Police & Firemen's Retirement System of New Jersey
New Jersey
$12.7M
Natixis Advisors
159
Natixis Advisors
Massachusetts
$12.5M
Wealth Enhancement Advisory Services
160
Wealth Enhancement Advisory Services
Minnesota
$12.5M
SC
161
Savant Capital
Illinois
$12.5M
State of Tennessee, Department of Treasury
162
State of Tennessee, Department of Treasury
Tennessee
$12.4M
Bank of Montreal
163
Bank of Montreal
Ontario, Canada
$12.3M
Ohio Public Employees Retirement System (OPERS)
164
Ohio Public Employees Retirement System (OPERS)
Ohio
$12.3M
Citigroup
165
Citigroup
New York
$11.6M
CL
166
COWA LLC
Oklahoma
$11.5M
HI
167
Horizon Investments
North Carolina
$11.3M
Canada Pension Plan Investment Board
168
Canada Pension Plan Investment Board
Ontario, Canada
$11.2M
Asset Management One
169
Asset Management One
Japan
$11.2M
Mitsubishi UFJ Trust & Banking
170
Mitsubishi UFJ Trust & Banking
Japan
$11.2M
CSS
171
Cubist Systematic Strategies
Connecticut
$11M
ZIM
172
Zacks Investment Management
Illinois
$10.7M
MG
173
Markel Group
Virginia
$10.7M
SDIC
174
South Dakota Investment Council
South Dakota
$10.6M
IIM
175
INTECH Investment Management
Florida
$10.4M