XT
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XTX Topco’s Comfort Systems FIX Stock Holding History

XTX Topco’s Portfolio FIX Stock Details FIX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$11.1M Buy
5,613
+5,249
+1,442% +$9.52M 0.14% 101
2026
Q1 		$502K Sell
364
-717
-66% -$910K 0.01% 2050
2025
Q4 		$1.01M Buy
+1,081
New +$998K 0.03% 1018
2025
Q3 		– Sell
-3,048
Closed -$1.63M – 2784
2025
Q2 		$1.63M Buy
3,048
+1,499
+97% +$653K 0.07% 416
2025
Q1 		$499K Buy
1,549
+500
+48% +$202K 0.03% 1035
2024
Q4 		$445K Sell
1,049
-251
-19% -$110K 0.04% 869
2024
Q3 		$507K Sell
1,300
-6,172
-83% -$2.03M 0.04% 806
2024
Q2 		$2.27M Buy
+7,472
New +$2.38M 0.19% 100
2023
Q4 		– Sell
-4,792
Closed -$817K – 1752
2023
Q3 		$817K Buy
4,792
+1,915
+67% +$336K 0.14% 165
2023
Q2 		$472K Buy
2,877
+1,082
+60% +$161K 0.08% 405
2023
Q1 		$262K Buy
+1,795
New +$233K 0.05% 758
2021
Q4 		– Sell
-3,344
Closed -$238K – 788
2021
Q3 		$238K Buy
+3,344
New +$249K 0.08% 425

Other funds holding FIX

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

XTX Topco's FIX Position: Q2 2026 in Review

XTX Topco increased its Comfort Systems (FIX) stake by 1,442% in Q2 2026, buying an estimated $9.52M and bringing the position to 5,613 shares worth $11.1M. The position accounts for 0.14% of the portfolio, ranked #101.

XTX Topco first reported a position in FIX in Q3 2021 and has held it in 12 quarters since. 1,352 funds tracked by Wall St. Rank hold FIX as of Q2 2026.

  • XTX Topco held 5,613 shares of Comfort Systems worth $11.1M as of Q2 2026.
  • XTX Topco bought 5,249 Comfort Systems shares in Q2 2026, an estimated $9.52M.
  • Comfort Systems made up 0.14% of XTX Topco's portfolio in Q2 2026, its #101 holding.
  • XTX Topco first reported a position in Comfort Systems in Q3 2021 and has held it in 12 quarters since.
  • 1,352 funds tracked by Wall St. Rank held Comfort Systems as of Q2 2026.

Based on XTX Topco's 13F filing for Q2 2026, filed 14 Aug 2026.