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Comfort Systems
FIX

1,342 hedge funds and large institutions have $64.2B invested in Comfort Systems in 2026 Q2 according to their latest regulatory filings, with 243 funds opening new positions, 494 increasing their positions, 485 reducing their positions, and 81 closing their positions.

New
Increased
Maintained
Reduced
Closed

200% more first-time investments, than exits

New positions opened: 243 | Existing positions closed: 81

44% more capital invested

Capital invested by funds: $44.6B → $64.2B (+$19.6B)

12% more funds holding

Funds holding: 1,201 → 1,342 (+141)

2% more repeat investments, than reductions

Existing positions increased: 494 | Existing positions reduced: 485

0.15% less ownership

Funds ownership: 92.46% → 92.32% (-0.15%)

27% less call options, than puts

Call options by funds: $1.07B | Put options by funds: $1.46B

28% less funds holding in top 10

Funds holding in top 10: 43 → 31 (-12)

Holders
1,342
Holders Change
+141
Holders Change %
+11.74%
% of All Funds
16.21%
Holding in Top 10
31
Holding in Top 10 Change
-12
Holding in Top 10 Change %
-27.91%
% of All Funds
0.37%
New
243
Increased
494
Reduced
485
Closed
81
Calls
$1.07B
Puts
$1.46B
Net Calls
-$391M
Net Calls Change
-$190M

Top Buyers

Rank Fund Capital Flow
1
Massachusetts Financial Services
Massachusetts Financial Services
Massachusetts
+$400M
2
Fidelity Investments
Fidelity Investments
Massachusetts
+$382M
3
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
+$297M
4
Amundi
Amundi
France
+$283M
5
DZ Bank
DZ Bank
Germany
+$223M

Top Sellers

Rank Fund Capital Flow
1
Westfield Capital Management
Westfield Capital Management
Massachusetts
-$482M
2
Capital International Investors
Capital International Investors
California
-$454M
3
HRCM
Hood River Capital Management
Florida
-$344M
4
Capital World Investors
Capital World Investors
California
-$264M
5
SG Americas Securities
SG Americas Securities
New York
-$224M
Name Holding Trade Value Shares
Change 		Change in
Stake
Arrowstreet Capital
26
Arrowstreet Capital
Massachusetts
$439M -$56.8M -31,276 -12%
Baillie Gifford & Co
27
Baillie Gifford & Co
United Kingdom
$421M -$22.6M -12,463 -6%
Lord, Abbett & Co
28
Lord, Abbett & Co
New Jersey
$415M -$51.4M -28,345 -12%
DZ Bank
29
DZ Bank
Germany
$412M +$223M +122,961 +145%
Artisan Partners
30
Artisan Partners
Wisconsin
$401M -$11M -6,064 -3%
UBS AM
31
UBS AM
Illinois
$400M +$102M +55,938 +38%
Vanguard Fiduciary Trust
32
Vanguard Fiduciary Trust
Pennsylvania
$400M -$1.84M -1,015 -0.5%
Legal & General Group
33
Legal & General Group
United Kingdom
$400M +$87.3M +48,091 +31%
UBS Group
34
UBS Group
Switzerland
$381M +$3.18M +1,751 +0.9%
Bank of New York Mellon
35
Bank of New York Mellon
New York
$370M -$56.7M -31,269 -14%
Point72 Asset Management
36
Point72 Asset Management
Connecticut
$356M -$71.7M -39,505 -18%
Royal Bank of Canada
37
Royal Bank of Canada
Ontario, Canada
$339M +$45.4M +25,000 +17%
American Century Companies
38
American Century Companies
Missouri
$323M +$203M +111,755 +219%
Nuveen
39
Nuveen
North Carolina
$315M -$53.7M -29,571 -16%
Jacobs Levy Equity Management
40
Jacobs Levy Equity Management
New Jersey
$287M +$88.2M +48,602 +51%
WCM Investment Management
41
WCM Investment Management
California
$282M +$51.2M +28,225 +24%
Capital International Investors
42
Capital International Investors
California
$280M -$454M -250,439 -64%
Royal London Asset Management
43
Royal London Asset Management
United Kingdom
$280M +$5.06M +2,791 +2%
VOYA Investment Management
44
VOYA Investment Management
Georgia
$273M +$30.2M +16,649 +14%
Fuller & Thaler Asset Management
45
Fuller & Thaler Asset Management
California
$259M -$202M -111,363 -46%
Raymond James Financial
46
Raymond James Financial
Florida
$249M -$16.7M -9,194 -7%
Temasek Holdings
47
Temasek Holdings
Singapore
$247M +$54.6M +30,080 +32%
Caisse de Depot et Placement du Quebec (CDPQ)
48
Caisse de Depot et Placement du Quebec (CDPQ)
Quebec, Canada
$244M +$78.3M +43,147 +54%
EWM
49
Evercore Wealth Management
New York
$223M -$39.8M -21,916 -16%
Ameriprise
50
Ameriprise
Minnesota
$221M -$64.9M -35,764 -24%
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FIX Hedge Fund Activity: Q2 2026 in Review

1,342 of the 8,279 institutional investors tracked by Wall St. Rank reported a position in Comfort Systems (FIX) for Q2 2026, worth a combined $64.2B — up 44% from $44.6B a quarter earlier.

Buyers outnumbered sellers: 243 funds opened new FIX positions and 81 closed out — a net gain of 162 holders — while 494 added to existing stakes and 485 trimmed.

The largest buyer was Massachusetts Financial Services, adding an estimated $400M. The largest seller was Westfield Capital Management, cutting an estimated $482M.

  • 1,342 institutional investors held Comfort Systems (FIX) as of Q2 2026, up from 1,201 in Q1 2026.
  • Funds reported $64.2B of Comfort Systems stock for Q2 2026, up 44% quarter-over-quarter.
  • 243 funds opened new Comfort Systems positions in Q2 2026 and 81 closed out, a net change of +162 holders.
  • The largest Comfort Systems buyer in Q2 2026 was Massachusetts Financial Services, an estimated $400M added.
  • The largest Comfort Systems seller in Q2 2026 was Westfield Capital Management, an estimated $482M sold.

Based on aggregated 13F filings for Q2 2026.