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Side-by-side financial comparison of DIODES INC (DIOD) and Westlake Chemical Partners LP (WLKP). Click either name above to swap in a different company.
DIODES INC is the larger business by last-quarter revenue ($391.6M vs $323.0M, roughly 1.2× Westlake Chemical Partners LP). Westlake Chemical Partners LP runs the higher net margin — 4.5% vs 2.6%, a 1.9% gap on every dollar of revenue. On growth, DIODES INC posted the faster year-over-year revenue change (15.4% vs 11.4%). Westlake Chemical Partners LP produced more free cash flow last quarter ($111.5M vs $12.4M). Over the past eight quarters, DIODES INC's revenue compounded faster (13.9% CAGR vs 6.5%).
Diodes Incorporated is a global semiconductor manufacturer that designs, produces and supplies discrete, analog and mixed-signal semiconductor products. Its solutions serve key end markets including automotive, industrial, consumer electronics, personal computing and communications infrastructure, with a worldwide customer base.
Westlake Chemical Partners LP is a petrochemical limited partnership that manufactures and markets basic products including ethylene, polyethylene, and styrene monomers. It operates mainly in North America, serving packaging, construction, consumer goods, and industrial manufacturing sectors.
DIOD vs WLKP — Head-to-Head
Income Statement — Q4 FY2025 vs Q4 FY2025
| Metric | | |
|---|---|---|
| Revenue | $391.6M | $323.0M |
| Net Profit | $10.2M | $14.5M |
| Gross Margin | 31.1% | 30.0% |
| Operating Margin | 3.4% | 27.8% |
| Net Margin | 2.6% | 4.5% |
| Revenue YoY | 15.4% | 11.4% |
| Net Profit YoY | 23.8% | -3.0% |
| EPS (diluted) | $0.23 | — |
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 | $391.6M | $323.0M | ||
| Q3 25 | $392.2M | $308.9M | ||
| Q2 25 | $366.2M | $297.1M | ||
| Q1 25 | $332.1M | $237.6M | ||
| Q4 24 | $339.3M | $290.1M | ||
| Q3 24 | $350.1M | $277.0M | ||
| Q2 24 | $319.8M | $284.2M | ||
| Q1 24 | $302.0M | $284.7M |
| Q4 25 | $10.2M | $14.5M | ||
| Q3 25 | $14.3M | $14.7M | ||
| Q2 25 | $46.1M | $14.6M | ||
| Q1 25 | $-4.4M | $4.9M | ||
| Q4 24 | $8.2M | $15.0M | ||
| Q3 24 | $13.7M | $18.1M | ||
| Q2 24 | $8.0M | $14.4M | ||
| Q1 24 | $14.0M | $14.8M |
| Q4 25 | 31.1% | 30.0% | ||
| Q3 25 | 30.7% | 32.2% | ||
| Q2 25 | 31.5% | 32.8% | ||
| Q1 25 | 31.5% | 22.8% | ||
| Q4 24 | 32.7% | 34.0% | ||
| Q3 24 | 33.7% | 42.2% | ||
| Q2 24 | 33.6% | 35.6% | ||
| Q1 24 | 33.0% | 35.9% |
| Q4 25 | 3.4% | 27.8% | ||
| Q3 25 | 3.0% | 29.8% | ||
| Q2 25 | 2.6% | 30.7% | ||
| Q1 25 | 0.4% | 19.6% | ||
| Q4 24 | 3.5% | 31.7% | ||
| Q3 24 | 6.2% | 39.6% | ||
| Q2 24 | 1.2% | 32.9% | ||
| Q1 24 | 4.3% | 33.4% |
| Q4 25 | 2.6% | 4.5% | ||
| Q3 25 | 3.6% | 4.7% | ||
| Q2 25 | 12.6% | 4.9% | ||
| Q1 25 | -1.3% | 2.1% | ||
| Q4 24 | 2.4% | 5.2% | ||
| Q3 24 | 3.9% | 6.5% | ||
| Q2 24 | 2.5% | 5.1% | ||
| Q1 24 | 4.6% | 5.2% |
| Q4 25 | $0.23 | — | ||
| Q3 25 | $0.31 | — | ||
| Q2 25 | $0.99 | — | ||
| Q1 25 | $-0.10 | — | ||
| Q4 24 | $0.18 | — | ||
| Q3 24 | $0.30 | — | ||
| Q2 24 | $0.17 | — | ||
| Q1 24 | $0.30 | — |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $377.0M | $44.3M |
| Total DebtLower is stronger | $25.7M | — |
| Stockholders' EquityBook value | $1.9B | — |
| Total Assets | $2.4B | $1.3B |
| Debt / EquityLower = less leverage | 0.01× | — |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $377.0M | $44.3M | ||
| Q3 25 | $386.4M | $37.9M | ||
| Q2 25 | $327.3M | $36.6M | ||
| Q1 25 | $343.9M | $49.6M | ||
| Q4 24 | $316.1M | $58.3M | ||
| Q3 24 | $319.3M | $60.2M | ||
| Q2 24 | $273.9M | $66.0M | ||
| Q1 24 | $276.0M | $55.8M |
| Q4 25 | $25.7M | — | ||
| Q3 25 | $24.9M | — | ||
| Q2 25 | $26.4M | — | ||
| Q1 25 | $20.5M | — | ||
| Q4 24 | $20.7M | — | ||
| Q3 24 | $22.2M | — | ||
| Q2 24 | $20.3M | — | ||
| Q1 24 | $20.9M | — |
| Q4 25 | $1.9B | — | ||
| Q3 25 | $1.9B | — | ||
| Q2 25 | $1.9B | — | ||
| Q1 25 | $1.8B | — | ||
| Q4 24 | $1.8B | — | ||
| Q3 24 | $1.8B | — | ||
| Q2 24 | $1.8B | — | ||
| Q1 24 | $1.7B | — |
| Q4 25 | $2.4B | $1.3B | ||
| Q3 25 | $2.5B | $1.3B | ||
| Q2 25 | $2.5B | $1.3B | ||
| Q1 25 | $2.4B | $1.4B | ||
| Q4 24 | $2.4B | $1.3B | ||
| Q3 24 | $2.4B | $1.3B | ||
| Q2 24 | $2.4B | $1.3B | ||
| Q1 24 | $2.4B | $1.3B |
| Q4 25 | 0.01× | — | ||
| Q3 25 | 0.01× | — | ||
| Q2 25 | 0.01× | — | ||
| Q1 25 | 0.01× | — | ||
| Q4 24 | 0.01× | — | ||
| Q3 24 | 0.01× | — | ||
| Q2 24 | 0.01× | — | ||
| Q1 24 | 0.01× | — |
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 | $38.1M | $120.4M |
| Free Cash FlowOCF − Capex | $12.4M | $111.5M |
| FCF MarginFCF / Revenue | 3.2% | 34.5% |
| Capex IntensityCapex / Revenue | 6.6% | 2.7% |
| Cash ConversionOCF / Net Profit | 3.74× | 8.28× |
| TTM Free Cash FlowTrailing 4 quarters | $137.2M | $201.7M |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $38.1M | $120.4M | ||
| Q3 25 | $79.1M | $105.2M | ||
| Q2 25 | $41.5M | $9.1M | ||
| Q1 25 | $56.7M | $45.8M | ||
| Q4 24 | $81.8M | $132.5M | ||
| Q3 24 | $54.4M | $126.1M | ||
| Q2 24 | $14.4M | $121.9M | ||
| Q1 24 | $-31.1M | $104.6M |
| Q4 25 | $12.4M | $111.5M | ||
| Q3 25 | $62.8M | $75.6M | ||
| Q2 25 | $21.1M | $-15.3M | ||
| Q1 25 | $40.8M | $29.8M | ||
| Q4 24 | $62.1M | $119.0M | ||
| Q3 24 | $39.4M | $110.5M | ||
| Q2 24 | $-3.5M | $111.7M | ||
| Q1 24 | $-51.5M | $94.8M |
| Q4 25 | 3.2% | 34.5% | ||
| Q3 25 | 16.0% | 24.5% | ||
| Q2 25 | 5.8% | -5.2% | ||
| Q1 25 | 12.3% | 12.6% | ||
| Q4 24 | 18.3% | 41.0% | ||
| Q3 24 | 11.2% | 39.9% | ||
| Q2 24 | -1.1% | 39.3% | ||
| Q1 24 | -17.1% | 33.3% |
| Q4 25 | 6.6% | 2.7% | ||
| Q3 25 | 4.2% | 9.6% | ||
| Q2 25 | 5.6% | 8.2% | ||
| Q1 25 | 4.8% | 6.7% | ||
| Q4 24 | 5.8% | 4.6% | ||
| Q3 24 | 4.3% | 5.6% | ||
| Q2 24 | 5.6% | 3.6% | ||
| Q1 24 | 6.7% | 3.4% |
| Q4 25 | 3.74× | 8.28× | ||
| Q3 25 | 5.54× | 7.18× | ||
| Q2 25 | 0.90× | 0.62× | ||
| Q1 25 | — | 9.25× | ||
| Q4 24 | 9.93× | 8.83× | ||
| Q3 24 | 3.95× | 6.95× | ||
| Q2 24 | 1.80× | 8.45× | ||
| Q1 24 | -2.22× | 7.05× |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
DIOD
| Distributor | $253.1M | 65% |
| Direct Sales | $138.5M | 35% |
WLKP
| Affiliated Entity | $296.9M | 92% |
| Nonrelated Party | $26.2M | 8% |
