Comfort Systems
1,205 hedge funds and large institutions have $44.6B invested in Comfort Systems in 2026 Q1 according to their latest regulatory filings, with 248 funds opening new positions, 449 increasing their positions, 401 reducing their positions, and 71 closing their positions.
249% more first-time investments, than exits
New positions opened: 248 | Existing positions closed: 71
139% more funds holding in top 10
Funds holding in top 10: 18 → 43 (+25)
44% more capital invested
Capital invested by funds: $31B → $44.6B (+$13.7B)
16% more funds holding
Funds holding: 1,041 → 1,205 (+164)
12% more repeat investments, than reductions
Existing positions increased: 449 | Existing positions reduced: 401
1.55% less ownership
Funds ownership: 94.01% → 92.46% (-1.5%)
23% less call options, than puts
Call options by funds: $693M | Put options by funds: $894M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Capital International Investors
Los Angeles,
California
|
+$353M |
| 2 |
JP Morgan Chase
New York
|
+$232M |
| 3 |
Zurich Cantonal Bank
Zurich,
Switzerland
|
+$145M |
| 4 |
AQR Capital Management
Greenwich,
Connecticut
|
+$122M |
| 5 |
Point72 Asset Management
Stamford,
Connecticut
|
+$91.9M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Capital World Investors
Los Angeles,
California
|
-$984M |
| 2 |
Fidelity Investments
Boston,
Massachusetts
|
-$281M |
| 3 |
Jacobs Levy Equity Management
Florham Park,
New Jersey
|
-$218M |
| 4 |
AT
AMF Tjänstepension
Stockholm,
Sweden
|
-$206M |
| 5 |
Qube Research & Technologies (QRT)
London,
United Kingdom
|
-$103M |
FIX Hedge Fund Activity: Q1 2026 in Review
1,205 of the 8,208 institutional investors tracked by Wall St. Rank reported a position in Comfort Systems (FIX) for Q1 2026, worth a combined $44.6B — up 44% from $31B a quarter earlier.
Buyers outnumbered sellers: 248 funds opened new FIX positions and 71 closed out — a net gain of 177 holders — while 449 added to existing stakes and 401 trimmed.
The largest buyer was Capital International Investors, adding an estimated $353M. The largest seller was Capital World Investors, cutting an estimated $984M.
- 1,205 institutional investors held Comfort Systems (FIX) as of Q1 2026, up from 1,041 in Q4 2025.
- Funds reported $44.6B of Comfort Systems stock for Q1 2026, up 44% quarter-over-quarter.
- 248 funds opened new Comfort Systems positions in Q1 2026 and 71 closed out, a net change of +177 holders.
- The largest Comfort Systems buyer in Q1 2026 was Capital International Investors, an estimated $353M added.
- The largest Comfort Systems seller in Q1 2026 was Capital World Investors, an estimated $984M sold.
Based on aggregated 13F filings for Q1 2026.