PEAK6
BLDR icon

PEAK6’s Builders FirstSource BLDR Stock Holding History

PEAK6’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
-11,200
Closed -$922K – 2752
2026
Q1 		$922K Sell
11,200
-19,600
-64% -$2.09M ﹤0.01% 1739
2025
Q4 		$3.17M Sell
30,800
-14,800
-32% -$1.66M 0.01% 1182
2025
Q3 		$5.53M Sell
45,600
-11,400
-20% -$1.51M 0.01% 987
2025
Q2 		$6.65M Sell
57,000
-86,400
-60% -$9.97M 0.01% 820
2025
Q1 		$17.9M Sell
143,400
-42,800
-23% -$6.23M 0.04% 371
2024
Q4 		$26.6M Buy
+186,200
New +$32.9M 0.06% 282

Other funds holding BLDR

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return
Pictet Asset Management
Pictet Asset Management Carouge, Switzerland $105B AUM 38.07% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

PEAK6's BLDR Position: Q2 2026 in Review

PEAK6 sold out of Builders FirstSource (BLDR) in Q2 2026, closing a stake of 3,779 shares — an estimated $311K sold.

PEAK6 first reported a position in BLDR in Q4 2024 and held it in 6 quarters. The position peaked at $12.3M in Q4 2024. 671 funds tracked by Wall St. Rank hold BLDR as of Q2 2026.

  • PEAK6 reported no remaining Builders FirstSource position as of Q2 2026 after selling out during the quarter.
  • PEAK6 sold 3,779 Builders FirstSource shares in Q2 2026, an estimated $311K.
  • PEAK6 first reported a position in Builders FirstSource in Q4 2024 and held it in 6 quarters.
  • PEAK6's Builders FirstSource position peaked at $12.3M in Q4 2024.
  • 671 funds tracked by Wall St. Rank held Builders FirstSource as of Q2 2026.

Based on PEAK6's 13F filing for Q2 2026, filed 13 Aug 2026.