IMC Chicago
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IMC Chicago’s Builders FirstSource BLDR Stock Holding History

IMC Chicago’s Portfolio BLDR Stock Details BLDR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		– Sell
-7,721
Closed -$617K – 6375
2026
Q1 		$636K Sell
7,721
-23,967
-76% -$2.56M ﹤0.01% 3765
2025
Q4 		$3.26M Buy
31,688
+3,648
+13% +$410K ﹤0.01% 2051
2025
Q3 		$3.4M Buy
+28,040
New +$3.72M ﹤0.01% 1865
2025
Q2 		– Sell
-13,138
Closed -$1.52M – 3305
2025
Q1 		$1.64M Buy
+13,138
New +$1.91M ﹤0.01% 1933

Other funds holding BLDR

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Pictet Asset Management
Pictet Asset Management Carouge, Switzerland $105B AUM 38.07% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Diamond Hill Capital Management
Diamond Hill Capital Management Columbus, Ohio $12.5B AUM 7.49% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $315B AUM 27.84% 1-Year Est. Return
Deutsche Bank
Deutsche Bank Frankfurt Am Main Ge, Germany $344B AUM 42.99% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return
RR
Robotti Robert $620M AUM 55.18% 1-Year Est. Return
Fiera Capital (Canada)
Fiera Capital (Canada) Montreal, Quebec, Canada $27.6B AUM 23.56% 1-Year Est. Return

IMC Chicago's BLDR Position: Q2 2026 in Review

IMC Chicago sold out of Builders FirstSource (BLDR) in Q2 2026, closing a stake of 7,721 shares — an estimated $617K sold.

IMC Chicago first reported a position in BLDR in Q1 2025 and held it in 4 quarters. The position peaked at $3.4M in Q3 2025. 362 funds tracked by Wall St. Rank hold BLDR as of Q2 2026.

  • IMC Chicago reported no remaining Builders FirstSource position as of Q2 2026 after selling out during the quarter.
  • IMC Chicago sold 7,721 Builders FirstSource shares in Q2 2026, an estimated $617K.
  • IMC Chicago first reported a position in Builders FirstSource in Q1 2025 and held it in 4 quarters.
  • IMC Chicago's Builders FirstSource position peaked at $3.4M in Q3 2025.
  • 362 funds tracked by Wall St. Rank held Builders FirstSource as of Q2 2026.

Based on IMC Chicago's 13F filing for Q2 2026, filed 6 Aug 2026.