Walleye Trading’s Comfort Systems FIX Stock Holding History

Walleye 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	$2.21M	Sell	1,600 -900	-36%	-$1.14M	﹤0.01%	1647
2025 Q4	$2.33M	Buy	2,500 +1,700	+213%	+$1.57M	﹤0.01%	1803
2025 Q3	$660K	Hold	800	–	–	﹤0.01%	2553
2025 Q2	$429K	Sell	800 -1,300	-62%	-$566K	﹤0.01%	2747
2025 Q1	$677K	Buy	+2,100	New	+$847K	﹤0.01%	2322
2024 Q4	–	Sell	-400	Closed	-$156K	–	4356
2024 Q3	$156K	Sell	400 -100	-20%	-$32.9K	﹤0.01%	3156
2024 Q2	$152K	Buy	+500	New	+$159K	﹤0.01%	3212
2016 Q4	–	Sell	-4,900	Closed	-$144K	–	4842
2016 Q3	$144K	Buy	4,900 +3,000	+158%	+$89.2K	﹤0.01%	3037
2016 Q2	$62K	Sell	1,900 -500	-21%	-$15.9K	﹤0.01%	3844
2016 Q1	$76K	Buy	+2,400	New	+$67.9K	﹤0.01%	3573

Other funds holding FIX

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 Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return

Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Westfield Capital Management Boston, Massachusetts $23.8B AUM 49.45% 1-Year Est. Return

Walleye Trading's FIX Position: Q1 2026 in Review

Walleye Trading reduced its Comfort Systems (FIX) stake by 55% in Q1 2026, selling an estimated $1.94M and leaving 1,251 shares worth $1.73M. The position accounts for ﹤0.01% of the portfolio, ranked #1808.

Walleye Trading first reported a position in FIX in Q2 2015 and has held it in 13 quarters since. The position peaked at $6.38M in Q3 2025. 1,195 funds tracked by Wall St. Rank hold FIX as of Q1 2026.

Walleye Trading held 1,251 shares of Comfort Systems worth $1.73M as of Q1 2026.
Walleye Trading sold 1,529 Comfort Systems shares in Q1 2026, an estimated $1.94M.
Comfort Systems made up ﹤0.01% of Walleye Trading's portfolio in Q1 2026, its #1808 holding.
Walleye Trading first reported a position in Comfort Systems in Q2 2015 and has held it in 13 quarters since.
Walleye Trading's Comfort Systems position peaked at $6.38M in Q3 2025.
1,195 funds tracked by Wall St. Rank held Comfort Systems as of Q1 2026.

Based on Walleye Trading's 13F filing for Q1 2026, filed 11 May 2026.