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
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 $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Sands Capital Management
Sands Capital Management Arlington, Virginia $25.5B AUM 26.46% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

PEAK6's BLDR Position: Q1 2026 in Review

PEAK6 reduced its Builders FirstSource (BLDR) stake by 67% in Q1 2026, selling an estimated $830K and leaving 3,779 shares worth $311K. The position accounts for ﹤0.01% of the portfolio, ranked #2142.

PEAK6 first reported a position in BLDR in Q4 2024 and has held it in 6 quarters since. The position peaked at $12.3M in Q4 2024. 719 funds tracked by Wall St. Rank hold BLDR as of Q1 2026.

  • PEAK6 held 3,779 shares of Builders FirstSource worth $311K as of Q1 2026.
  • PEAK6 sold 7,775 Builders FirstSource shares in Q1 2026, an estimated $830K.
  • Builders FirstSource made up ﹤0.01% of PEAK6's portfolio in Q1 2026, its #2142 holding.
  • PEAK6 first reported a position in Builders FirstSource in Q4 2024 and has held it in 6 quarters since.
  • PEAK6's Builders FirstSource position peaked at $12.3M in Q4 2024.
  • 719 funds tracked by Wall St. Rank held Builders FirstSource as of Q1 2026.

Based on PEAK6's 13F filing for Q1 2026, filed 14 May 2026.