Parallax Volatility Advisers’s Comfort Systems FIX Stock Holding History

Parallax Volatility Advisers’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	$1.21M	Buy	+610	New	+$1.11M	﹤0.01%	917
2019 Q1	–	Sell	-23	Closed	-$1K	–	3139
2018 Q4	$1K	Sell	23 -17	-43%	-$870	﹤0.01%	2756
2018 Q3	$2K	Buy	+40	New	+$2.14K	﹤0.01%	2420
2018 Q2	–	Sell	-790	Closed	-$33K	–	2463
2018 Q1	$33K	Sell	790 -4,838	-86%	-$203K	﹤0.01%	1638
2017 Q4	$246K	Buy	+5,628	New	+$230K	﹤0.01%	2107
2014 Q1	–	Sell	-2,329	Closed	-$45K	–	3452
2013 Q4	$45K	Buy	+2,329	New	+$44K	﹤0.01%	2262

Other funds holding FIX

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Parallax Volatility Advisers's FIX Position: Q2 2026 in Review

Parallax Volatility Advisers opened a new position in Comfort Systems (FIX) in Q2 2026: 610 shares worth $1.21M. The stake represents ﹤0.01% of the portfolio and ranks #917 among its holdings. This is a return to the name: Parallax Volatility Advisers previously reported a position in FIX as recently as Q4 2018.

Parallax Volatility Advisers first reported a position in FIX in Q4 2013 and has held it in 6 quarters since. 1,350 funds tracked by Wall St. Rank hold FIX as of Q2 2026.

Parallax Volatility Advisers held 610 shares of Comfort Systems worth $1.21M as of Q2 2026.
Comfort Systems was a new Parallax Volatility Advisers position in Q2 2026.
Comfort Systems made up ﹤0.01% of Parallax Volatility Advisers's portfolio in Q2 2026, its #917 holding.
Parallax Volatility Advisers first reported a position in Comfort Systems in Q4 2013 and has held it in 6 quarters since.
1,350 funds tracked by Wall St. Rank held Comfort Systems as of Q2 2026.

Based on Parallax Volatility Advisers's 13F filing for Q2 2026, filed 14 Aug 2026.