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	$11M	Buy	122,800 +6,300	+5%	+$503K	﹤0.01%	1478
2026 Q1	$9.59M	Sell	116,500 -26,200	-18%	-$2.8M	﹤0.01%	1304
2025 Q4	$14.7M	Sell	142,700 -28,400	-17%	-$3.19M	0.01%	991
2025 Q3	$20.7M	Buy	171,100 +34,600	+25%	+$4.59M	0.01%	778
2025 Q2	$15.9M	Buy	136,500 +37,300	+38%	+$4.3M	0.01%	795
2025 Q1	$12.4M	Buy	99,200 +11,200	+13%	+$1.63M	0.01%	797
2024 Q4	$12.6M	Sell	88,000 -27,500	-24%	-$4.87M	0.01%	803
2024 Q3	$22.4M	Buy	115,500 +6,000	+5%	+$995K	0.01%	518
2024 Q2	$15.2M	Buy	109,500 +32,000	+41%	+$5.43M	0.01%	626
2024 Q1	$16.2M	Sell	77,500 -31,100	-29%	-$5.75M	0.01%	535
2023 Q4	$18.1M	Buy	+108,600	New	+$14.4M	0.01%	487

Other funds holding BLDR

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

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

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

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return

Pictet Asset Management Carouge, Switzerland $105B AUM 38.07% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

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

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 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. 671 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.
671 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.