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Side-by-side financial comparison of Builders FirstSource (BLDR) and WESTLAKE CORP (WLK). Click either name above to swap in a different company.
Builders FirstSource is the larger business by last-quarter revenue ($3.4B vs $2.5B, roughly 1.3× WESTLAKE CORP). Builders FirstSource runs the higher net margin — 0.9% vs -21.5%, a 22.4% gap on every dollar of revenue. On growth, WESTLAKE CORP posted the faster year-over-year revenue change (-10.9% vs -12.1%). Builders FirstSource produced more free cash flow last quarter ($106.7M vs $-16.0M). Over the past eight quarters, Builders FirstSource's revenue compounded faster (-7.1% CAGR vs -7.7%).
Builders FirstSource, Inc. is a Fortune 500 company that is a manufacturer and supplier of building materials. The company is headquartered in Irving, Texas, and is the largest supplier of building products, prefabricated components and value-added services in the US. Builders FirstSource employs over 15,000 people throughout the USA. They serve new residential construction, repair and remodeling professionals. The company was incorporated in March 1998.
Westlake Corporation is an international manufacturer and supplier of petrochemicals, polymers and fabricated building products, which are fundamental to various consumer and industrial markets. The company was founded by Ting Tsung Chao in 1986. it is the largest producer of low-density polyethylene (LDPE) in the US and ranks among the Forbes Global 2000. Westlake Chemical operates in two segments: Olefins and Vinyls, and is also an integrated producer of vinyls, with substantial downstream ...
BLDR vs WLK — Head-to-Head
Income Statement — Q4 FY2025 vs Q4 FY2025
| Metric | | |
|---|---|---|
| Revenue | $3.4B | $2.5B |
| Net Profit | $31.5M | $-544.0M |
| Gross Margin | 29.8% | 3.4% |
| Operating Margin | 1.8% | -26.5% |
| Net Margin | 0.9% | -21.5% |
| Revenue YoY | -12.1% | -10.9% |
| Net Profit YoY | -83.5% | -7871.4% |
| EPS (diluted) | $0.29 | $-4.22 |
Green = leading value per metric. Periods may differ when fiscal calendars don't align.
8-Quarter Revenue & Profit Trend
Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.
| Q4 25 | $3.4B | $2.5B | ||
| Q3 25 | $3.9B | $2.8B | ||
| Q2 25 | $4.2B | $3.0B | ||
| Q1 25 | $3.7B | $2.8B | ||
| Q4 24 | $3.8B | $2.8B | ||
| Q3 24 | $4.2B | $3.1B | ||
| Q2 24 | $4.5B | $3.2B | ||
| Q1 24 | $3.9B | $3.0B |
| Q4 25 | $31.5M | $-544.0M | ||
| Q3 25 | $122.4M | $-782.0M | ||
| Q2 25 | $185.0M | $-142.0M | ||
| Q1 25 | $96.3M | $-40.0M | ||
| Q4 24 | $190.2M | $7.0M | ||
| Q3 24 | $284.8M | $108.0M | ||
| Q2 24 | $344.1M | $313.0M | ||
| Q1 24 | $258.8M | $174.0M |
| Q4 25 | 29.8% | 3.4% | ||
| Q3 25 | 30.4% | 8.3% | ||
| Q2 25 | 30.7% | 8.7% | ||
| Q1 25 | 30.5% | 8.2% | ||
| Q4 24 | 32.3% | 11.5% | ||
| Q3 24 | 32.8% | 16.0% | ||
| Q2 24 | 32.8% | 20.7% | ||
| Q1 24 | 33.4% | 15.7% |
| Q4 25 | 1.8% | -26.5% | ||
| Q3 25 | 5.8% | -27.0% | ||
| Q2 25 | 7.4% | -3.7% | ||
| Q1 25 | 5.0% | -1.1% | ||
| Q4 24 | 8.0% | 2.3% | ||
| Q3 24 | 10.1% | 5.8% | ||
| Q2 24 | 11.0% | 12.7% | ||
| Q1 24 | 9.6% | 7.5% |
| Q4 25 | 0.9% | -21.5% | ||
| Q3 25 | 3.1% | -27.6% | ||
| Q2 25 | 4.4% | -4.8% | ||
| Q1 25 | 2.6% | -1.4% | ||
| Q4 24 | 5.0% | 0.2% | ||
| Q3 24 | 6.7% | 3.5% | ||
| Q2 24 | 7.7% | 9.8% | ||
| Q1 24 | 6.7% | 5.8% |
| Q4 25 | $0.29 | $-4.22 | ||
| Q3 25 | $1.10 | $-6.06 | ||
| Q2 25 | $1.66 | $-1.11 | ||
| Q1 25 | $0.84 | $-0.31 | ||
| Q4 24 | $1.65 | $0.07 | ||
| Q3 24 | $2.44 | $0.83 | ||
| Q2 24 | $2.87 | $2.40 | ||
| Q1 24 | $2.10 | $1.34 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $181.8M | $2.7B |
| Total DebtLower is stronger | $4.4B | $5.6B |
| Stockholders' EquityBook value | $4.4B | $8.8B |
| Total Assets | $11.2B | $20.0B |
| Debt / EquityLower = less leverage | 1.02× | 0.64× |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $181.8M | $2.7B | ||
| Q3 25 | $296.2M | $1.9B | ||
| Q2 25 | $87.0M | $2.1B | ||
| Q1 25 | $115.4M | $2.3B | ||
| Q4 24 | $153.6M | $2.9B | ||
| Q3 24 | $328.1M | $2.9B | ||
| Q2 24 | $75.6M | $3.0B | ||
| Q1 24 | $697.5M | $3.1B |
| Q4 25 | $4.4B | $5.6B | ||
| Q3 25 | $4.4B | $4.7B | ||
| Q2 25 | $4.7B | $4.7B | ||
| Q1 25 | $4.5B | $4.6B | ||
| Q4 24 | $3.7B | $4.6B | ||
| Q3 24 | $3.7B | $4.6B | ||
| Q2 24 | $3.8B | $4.9B | ||
| Q1 24 | $3.7B | $4.9B |
| Q4 25 | $4.4B | $8.8B | ||
| Q3 25 | $4.3B | $9.4B | ||
| Q2 25 | $4.2B | $10.3B | ||
| Q1 25 | $4.4B | $10.4B | ||
| Q4 24 | $4.3B | $10.5B | ||
| Q3 24 | $4.4B | $10.7B | ||
| Q2 24 | $4.3B | $10.6B | ||
| Q1 24 | $5.0B | $10.3B |
| Q4 25 | $11.2B | $20.0B | ||
| Q3 25 | $11.4B | $19.8B | ||
| Q2 25 | $11.5B | $20.8B | ||
| Q1 25 | $11.4B | $20.7B | ||
| Q4 24 | $10.6B | $20.8B | ||
| Q3 24 | $10.9B | $21.1B | ||
| Q2 24 | $10.7B | $21.1B | ||
| Q1 24 | $11.2B | $21.0B |
| Q4 25 | 1.02× | 0.64× | ||
| Q3 25 | 1.03× | 0.49× | ||
| Q2 25 | 1.12× | 0.45× | ||
| Q1 25 | 1.02× | 0.44× | ||
| Q4 24 | 0.86× | 0.43× | ||
| Q3 24 | 0.83× | 0.43× | ||
| Q2 24 | 0.88× | 0.46× | ||
| Q1 24 | 0.75× | 0.47× |
Cash Flow & Capital Efficiency
How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.
| Metric | | |
|---|---|---|
| Operating Cash FlowLast quarter | $194.8M | $225.0M |
| Free Cash FlowOCF − Capex | $106.7M | $-16.0M |
| FCF MarginFCF / Revenue | 3.2% | -0.6% |
| Capex IntensityCapex / Revenue | 2.6% | 9.5% |
| Cash ConversionOCF / Net Profit | 6.19× | — |
| TTM Free Cash FlowTrailing 4 quarters | $853.3M | $-530.0M |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $194.8M | $225.0M | ||
| Q3 25 | $547.7M | $182.0M | ||
| Q2 25 | $341.0M | $135.0M | ||
| Q1 25 | $132.3M | $-77.0M | ||
| Q4 24 | $373.5M | $434.0M | ||
| Q3 24 | $730.0M | $474.0M | ||
| Q2 24 | $452.1M | $237.0M | ||
| Q1 24 | $317.2M | $169.0M |
| Q4 25 | $106.7M | $-16.0M | ||
| Q3 25 | $461.9M | $-57.0M | ||
| Q2 25 | $252.3M | $-132.0M | ||
| Q1 25 | $32.4M | $-325.0M | ||
| Q4 24 | $273.8M | $149.0M | ||
| Q3 24 | $630.4M | $254.0M | ||
| Q2 24 | $364.0M | $6.0M | ||
| Q1 24 | $224.0M | $-103.0M |
| Q4 25 | 3.2% | -0.6% | ||
| Q3 25 | 11.7% | -2.0% | ||
| Q2 25 | 6.0% | -4.5% | ||
| Q1 25 | 0.9% | -11.4% | ||
| Q4 24 | 7.2% | 5.2% | ||
| Q3 24 | 14.9% | 8.1% | ||
| Q2 24 | 8.2% | 0.2% | ||
| Q1 24 | 5.8% | -3.5% |
| Q4 25 | 2.6% | 9.5% | ||
| Q3 25 | 2.2% | 8.4% | ||
| Q2 25 | 2.1% | 9.0% | ||
| Q1 25 | 2.7% | 8.7% | ||
| Q4 24 | 2.6% | 10.0% | ||
| Q3 24 | 2.4% | 7.1% | ||
| Q2 24 | 2.0% | 7.2% | ||
| Q1 24 | 2.4% | 9.1% |
| Q4 25 | 6.19× | — | ||
| Q3 25 | 4.48× | — | ||
| Q2 25 | 1.84× | — | ||
| Q1 25 | 1.37× | — | ||
| Q4 24 | 1.96× | 62.00× | ||
| Q3 24 | 2.56× | 4.39× | ||
| Q2 24 | 1.31× | 0.76× | ||
| Q1 24 | 1.23× | 0.97× |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
BLDR
| Specialty Building Products And Services | $949.0M | 28% |
| Windows Doors And Millwork | $893.5M | 27% |
| Lumber And Lumber Sheet Goods | $772.6M | 23% |
| Manufactured Products | $742.8M | 22% |
WLK
| Performance Materials | $930.0M | 37% |
| Housing Products | $767.0M | 30% |
| Essential Materials | $702.0M | 28% |
| Infrastructure Products | $134.0M | 5% |
