Simplex Trading
FIX icon

Simplex Trading’s Comfort Systems FIX Stock Holding History

Simplex Trading’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
Q1 		$4.41M Sell
3,200
-1,900
-37% -$2.41M ﹤0.01% 1192
2025
Q4 		$4.76M Buy
5,100
+3,400
+200% +$3.14M ﹤0.01% 1309
2025
Q3 		$1.4M Sell
1,700
-1,100
-39% -$746K ﹤0.01% 2696
2025
Q2 		$1.5M Sell
2,800
-6,200
-69% -$2.7M ﹤0.01% 2373
2025
Q1 		$2.9M Buy
9,000
+4,000
+80% +$1.61M ﹤0.01% 1690
2024
Q4 		$2.12M Buy
5,000
+1,700
+52% +$746K ﹤0.01% 2139
2024
Q3 		$1.29M Buy
3,300
+2,200
+200% +$725K ﹤0.01% 2684
2024
Q2 		$334K Sell
1,100
-5,200
-83% -$1.65M ﹤0.01% 4103
2024
Q1 		$2M Buy
6,300
+5,400
+600% +$1.38M ﹤0.01% 2400
2023
Q4 		$185K Buy
+900
New +$166K ﹤0.01% 4753
2023
Q3 		– Sell
-800
Closed -$131K – 8999
2023
Q2 		$131K Hold
800
– – ﹤0.01% 4764
2023
Q1 		$116K Buy
+800
New +$104K ﹤0.01% 4987
2022
Q4 		– Sell
-2,200
Closed -$214K – 9541
2022
Q3 		$214K Buy
2,200
+2,000
+1,000% +$196K ﹤0.01% 4521
2022
Q2 		$16K Hold
200
– – ﹤0.01% 7820
2022
Q1 		$17K Sell
200
-400
-67% -$35.9K ﹤0.01% 8401
2021
Q4 		$59K Buy
+600
New +$55.5K ﹤0.01% 7033
2021
Q2 		– Sell
-25
Closed -$186K – 10223
2021
Q1 		$186K Buy
25
+18
+257% +$1.15K ﹤0.01% 4845
2020
Q4 		$36K Sell
7
-29
-81% -$1.5K ﹤0.01% 6491
2020
Q3 		$185K Buy
36
+26
+260% +$1.26K ﹤0.01% 4210
2020
Q2 		$40K Buy
10
+8
+400% +$284 ﹤0.01% 5675
2020
Q1 		$7K Sell
2
-4
-67% -$177 ﹤0.01% 6668
2019
Q4 		$29K Sell
6
-20
-77% -$972 ﹤0.01% 5683
2019
Q3 		$114K Buy
26
+19
+271% +$828 ﹤0.01% 4180
2019
Q2 		$35K Sell
7
-34
-83% -$1.75K ﹤0.01% 5152
2019
Q1 		$214K Buy
41
+39
+1,950% +$1.95K ﹤0.01% 3537
2018
Q4 		$8K Buy
2
+1
+100% +$51 ﹤0.01% 5968
2018
Q3 		$5K Buy
+1
New +$54 ﹤0.01% 6753

Other funds holding FIX

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Westfield Capital Management
Westfield Capital Management Boston, Massachusetts $23.8B AUM 49.45% 1-Year Est. Return

Simplex Trading's FIX Position: Q1 2026 in Review

Simplex Trading reduced its Comfort Systems (FIX) stake by 83% in Q1 2026, selling an estimated $2.48M and leaving 387 shares worth $534K. The position accounts for ﹤0.01% of the portfolio, ranked #3175.

Simplex Trading first reported a position in FIX in Q1 2015 and has held it in 31 quarters since. The position peaked at $2.18M in Q4 2025. 1,195 funds tracked by Wall St. Rank hold FIX as of Q1 2026.

  • Simplex Trading held 387 shares of Comfort Systems worth $534K as of Q1 2026.
  • Simplex Trading sold 1,951 Comfort Systems shares in Q1 2026, an estimated $2.48M.
  • Comfort Systems made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #3175 holding.
  • Simplex Trading first reported a position in Comfort Systems in Q1 2015 and has held it in 31 quarters since.
  • Simplex Trading's Comfort Systems position peaked at $2.18M in Q4 2025.
  • 1,195 funds tracked by Wall St. Rank held Comfort Systems as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.