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David Shaw’s Comfort Systems FIX Stock Holding History

David Shaw’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 		$50.9M Buy
25,700
+9,500
+59% +$17.2M 0.02% 750
2026
Q1 		$22.3M Sell
16,200
-9,400
-37% -$11.9M 0.01% 1083
2025
Q4 		$23.9M Buy
25,600
+10,200
+66% +$9.42M 0.01% 1141
2025
Q3 		$12.7M Buy
+15,400
New +$10.4M 0.01% 1497
2025
Q2 		– Sell
-7,000
Closed -$2.26M – 4459
2025
Q1 		$2.26M Sell
7,000
-4,500
-39% -$1.81M ﹤0.01% 2517
2024
Q4 		$4.88M Buy
11,500
+2,200
+24% +$966K ﹤0.01% 1999
2024
Q3 		$3.63M Buy
+9,300
New +$3.06M ﹤0.01% 2210
2014
Q2 		– Sell
-40,000
Closed -$610K – 4303
2014
Q1 		$610K Hold
40,000
– – ﹤0.01% 3429
2013
Q4 		$776K Buy
+40,000
New +$756K ﹤0.01% 3384

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

David Shaw's FIX Position: Q2 2026 in Review

David Shaw reduced its Comfort Systems (FIX) stake by 0.96% in Q2 2026, selling an estimated $1.18M and leaving 67,126 shares worth $133M. The position accounts for 0.06% of the portfolio, ranked #340.

David Shaw first reported a position in FIX in Q4 2013 and has held it in 49 quarters since. The position peaked at $155M in Q3 2025. 1,342 funds tracked by Wall St. Rank hold FIX as of Q2 2026.

  • David Shaw held 67,126 shares of Comfort Systems worth $133M as of Q2 2026.
  • David Shaw sold 653 Comfort Systems shares in Q2 2026, an estimated $1.18M.
  • Comfort Systems made up 0.06% of David Shaw's portfolio in Q2 2026, its #340 holding.
  • David Shaw first reported a position in Comfort Systems in Q4 2013 and has held it in 49 quarters since.
  • David Shaw's Comfort Systems position peaked at $155M in Q3 2025.
  • 1,342 funds tracked by Wall St. Rank held Comfort Systems as of Q2 2026.

Based on D.E. Shaw & Co's 13F filing for Q2 2026, filed 14 Aug 2026.