BLDR β€” BUILDERS FIRSTSOURCE INC

Ownership history in Bayesian Capital Management, LP  Β·  19 quarters on record

This page tracks every 13F SEC filing in which Bayesian Capital Management, LP reported a position in BUILDERS FIRSTSOURCE INC (BLDR). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price β€” sourced directly from SEC EDGAR 13F filings.

πŸ” Peak position
0.41% (2021 Q1)
πŸ“Š Avg. % of fund
0.16%
πŸ“… First filed
2015 Q4
πŸ“… Last filed
2025 Q3
⏱ Quarters held
19

Position Intelligence

Bayesian Capital Management, LP Γ— BLDR AI Analytics

πŸ“ˆ Bayesian Capital Management, LP outperformed the S&P 500 by +48.8% annually on this BLDR position. Timing score: 44% (8/18 decisions correct). Average cost basis: $41.94. Maximum drawdown during holding period: –37.3%.

πŸ“ˆ Position Alpha vs SPY
+48.8%
annualised excess return

πŸ”₯ Exceptional β€” beat the S&P 500 by 48.8% per year on this position.
18 quarters analyzed

⏱️ Timing Score
44%

⚠️ Poor timing β€” buys often preceded drops, trims preceded rallies.
8 of 18 add/trim decisions correct

πŸ’° Entry Quality
$41.94
+189.1% vs current ($121.25)

Best entry: $11.08 (2015 Q4)  Β·  Worst: $166.94 (2023 Q4)

πŸ›‘οΈ Drawdown Resilience
–37.3%
max drawdown while held

πŸ’ͺ Held through 2 major drawdowns (>20%).

πŸ’ͺ Fund Conviction
42%
buy-side decisions

8 adds Β· 11 trims. Bought during 2 of 8 down-price quarters. πŸ“‰ Predominantly trimming β€” distribution phase.

πŸ“‘ Position Trajectory
β†’ Stable
last 4–5 quarters trend

βš–οΈ Portfolio weight has remained relatively stable β€” conviction maintained.
Currently 0.05% of portfolio

⚠ Based on quarterly 13F SEC filings and end-of-quarter closing prices. Timing score = accuracy of add/trim decisions vs next-quarter price direction. Alpha = mean quarterly excess return Γ— 4 (annualised). Not investment advice.

% of Fund (quarterly)    BLDR price (monthly, adj. close)
πŸ“‹ Quarterly Holdings History 10 quarters  β–Ύ
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 REDUCED 2,000 -1,807 -47.5% 0.05% $242K $121.25
2025 Q2 ADDED 3,807 +807 +26.9% 0.07% $444K $116.69
2025 Q1 REDUCED 3,000 -3,741 -55.5% 0.06% $375K $124.94
2023 Q4 ADDED 6,741 +2,641 +64.4% 0.12% $1.1M $166.94
2023 Q3 REDUCED 4,100 -4,160 -50.4% 0.06% $510K $124.49
2023 Q2 REDUCED 8,260 -27,533 -76.9% 0.12% $1.1M $136.00
2022 Q2 ADDED 35,793 +28,500 +390.8% 0.36% $1.9M $53.70
2022 Q1 REDUCED 7,293 -6,307 -46.4% 0.07% $471K $64.54
2021 Q4 ADDED 13,600 +3,727 +37.7% 0.37% $1.2M $85.71
2021 Q3 REDUCED 9,873 -17,600 -64.1% 0.15% $511K $51.74
9 older quarters hidden  β€”  Sign in free or upgrade to Premium to see full history

🏒 Other funds also holding BLDR

As of 2025 Q4 β€” sorted by position size

STADIUM CAPITAL MANAGEMENT LLC 3Y 7Y 18.93% Hauser Brothers GmbH 9.18% LITTLEJOHN & CO LLC 3Y 9.15% Coliseum Capital Management, LLC 3Y 7Y 6.58% Mountain Lake Investment Management LLC 3Y 7Y 6.56% ROBOTTI ROBERT 3Y 7Y 6.18% Lodge Hill Capital, LLC 3Y 7Y 5.89% Brave Warrior Advisors, LLC 3Y 7Y 5.73% GoodHaven Capital Management, LLC 3Y 7Y 5.68% Mountaineer Partners Management, LLC 3Y 7Y 5.42%
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