Builders FirstSource (BLDR)
What the price implies
A reverse DCF: instead of guessing a fair value, it asks what growth today's price already assumes. How it works.
At a market value of $5.6B, Builders FirstSource's free cash flow of $853M (fiscal 2025) would need to grow about -10% a year for the stock to be worth today's price. That is slower than the company has grown its free cash flow over the last 9 years.
Assumes a 9% discount rate and 3% growth after year 10, on free cash flow (operating cash flow minus capital spending) from Builders FirstSource's SEC filings. Change any assumption, or model revenue and margins instead, in the Modeling tab, or try your own numbers in the reverse DCF calculator.
Fundamental grade
Five factors scored 1 to 9 from BLDR's latest numbers, weighted into one grade. It describes the business, not whether the stock is a buy.
Key numbers
Results from SEC filings
Fiscal years, from Builders FirstSource's 10-K filings. The deep dive has 15+ years, quarters and every line.
| Fiscal year | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Revenue | $19.9B | $22.7B | $17.1B | $16.4B | $15.2B |
| Net income | $1.7B | $2.7B | $1.5B | $1.1B | $435M |
| Free cash flow | $1.5B | $3.3B | $1.8B | $1.5B | $853M |
| EPS (diluted) | $8.48 | $16.82 | $11.94 | $9.06 | $3.89 |
| Operating margin | 12.0% | 16.6% | 12.7% | 9.7% | 5.2% |
Where the revenue comes from
Revenue by segments, fiscal 2020.
Superinvestors who own BLDR
From each investor's latest 13F filing (what a 13F shows). 11 of the investors we track hold it.
| Investor | Last quarter | Value | % of portfolio | Quarter |
|---|---|---|---|---|
| Glenn Greenberg Brave Warrior Advisors |
Trimmed | $209M | 4.6% | Q2 2026 |
| Ric Dillon Diamond Hill Capital Management |
Trimmed | $135M | 1.1% | Q2 2026 |
| Hersh Cohen ClearBridge Investments |
Added | $64M | 0.05% | Q2 2026 |
| Robert Robotti Robotti & Company |
Trimmed | $46M | 7.4% | Q2 2026 |
| Joel Greenblatt Gotham Asset Management |
Added | $20M | 0.05% | Q2 2026 |
| Cliff Asness AQR Capital Management |
Trimmed | $12M | 0.00% | Q2 2026 |
| Francois Rochon Giverny Capital Inc. |
Trimmed | $8M | 0.28% | Q2 2026 |
| Will Nasgovitz Heartland Advisors |
Trimmed | $5M | 0.20% | Q2 2026 |
| Tweedy, Browne Tweedy, Browne Company |
New position | $2M | 0.13% | Q2 2026 |
| Bill Miller Miller Value Partners |
Added | $2M | 0.40% | Q2 2026 |
| Jean-Marie Eveillard First Eagle Investment Management |
New position | $14,943 | 0.0% | Q2 2026 |
Insider buying
Open-market purchases by Builders FirstSource's executives and directors in the last 12 months, from SEC Form 4 filings. What insider buying tells you.
| Date | Insider | Shares | Price | Value |
|---|---|---|---|---|
| Mar 13, 2026 | Paul S Levy |
50,000 | $87.73 | $4M |
| Feb 24, 2026 | Ro Khanna |
0 | $109.77 | — |
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In the full deep dive
Questions
What growth does Builders FirstSource's stock price imply?
At a market value of $5.6B, Builders FirstSource would need its free cash flow to grow about -10% a year for 10 years (discounted at 9%, 3% growth after that) to be worth today's price. Over the last 9 years its free cash flow grew 25% a year.
Are Builders FirstSource insiders buying the stock?
2 open-market insider purchases of BLDR in the last 12 months, from SEC Form 4 filings.
Which superinvestors own Builders FirstSource?
11 of the superinvestors Investingly tracks hold BLDR in their latest 13F, including Glenn Greenberg, Ric Dillon, Hersh Cohen.
Prices and ratios as of Oct 7, 2026; statements from SEC filings. Information only, not investment advice. Superinvestor holdings come from 13F filings, which are filed up to 45 days after each quarter ends.