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Side-by-side financial comparison of Monolithic Power Systems (MPWR) and STAR GROUP, L.P. (SGU). Click either name above to swap in a different company.
Monolithic Power Systems is the larger business by last-quarter revenue ($751.2M vs $539.3M, roughly 1.4× STAR GROUP, L.P.). Monolithic Power Systems runs the higher net margin — 22.9% vs 6.6%, a 16.2% gap on every dollar of revenue. On growth, Monolithic Power Systems posted the faster year-over-year revenue change (20.8% vs 10.5%). Monolithic Power Systems produced more free cash flow last quarter ($63.9M vs $-59.7M).
Monolithic Power Systems, Inc. is an American, publicly traded company headquartered in Kirkland, Washington. It operates in more than 15 locations worldwide.
Lone Star Funds, legal name of main entity Lone Star Global Acquisitions, Ltd. is a global private equity firm that invests in corporate equity, real estate, credit, and other financial assets. The founder of Lone Star established its first fund in 1995 and Lone Star has to date organized 25 private equity funds with total capital commitments since inception of over $95 billion. Lone Star's investors include corporate and public pension funds, sovereign wealth funds, university endowments, fo...
MPWR vs SGU — Head-to-Head
Income Statement — Q4 FY2025 vs Q1 FY2026
| Metric | | |
|---|---|---|
| Revenue | $751.2M | $539.3M |
| Net Profit | $171.7M | $35.8M |
| Gross Margin | 55.2% | — |
| Operating Margin | 26.6% | 10.1% |
| Net Margin | 22.9% | 6.6% |
| Revenue YoY | 20.8% | 10.5% |
| Net Profit YoY | -86.3% | 8.8% |
| EPS (diluted) | $3.50 | — |
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 | $751.2M | $539.3M | ||
| Q3 25 | $737.2M | — | ||
| Q2 25 | $664.6M | — | ||
| Q1 25 | $637.6M | — | ||
| Q4 24 | $621.7M | — | ||
| Q3 24 | $620.1M | — | ||
| Q2 24 | $507.4M | — | ||
| Q1 24 | $457.9M | — |
| Q4 25 | $171.7M | $35.8M | ||
| Q3 25 | $179.8M | — | ||
| Q2 25 | $135.0M | — | ||
| Q1 25 | $135.1M | — | ||
| Q4 24 | $1.3B | — | ||
| Q3 24 | $144.4M | — | ||
| Q2 24 | $100.4M | — | ||
| Q1 24 | $92.5M | — |
| Q4 25 | 55.2% | — | ||
| Q3 25 | 55.1% | — | ||
| Q2 25 | 55.1% | — | ||
| Q1 25 | 55.4% | — | ||
| Q4 24 | 55.4% | — | ||
| Q3 24 | 55.4% | — | ||
| Q2 24 | 55.3% | — | ||
| Q1 24 | 55.1% | — |
| Q4 25 | 26.6% | 10.1% | ||
| Q3 25 | 26.5% | — | ||
| Q2 25 | 24.8% | — | ||
| Q1 25 | 26.5% | — | ||
| Q4 24 | 26.3% | — | ||
| Q3 24 | 26.5% | — | ||
| Q2 24 | 23.0% | — | ||
| Q1 24 | 20.9% | — |
| Q4 25 | 22.9% | 6.6% | ||
| Q3 25 | 24.4% | — | ||
| Q2 25 | 20.3% | — | ||
| Q1 25 | 21.2% | — | ||
| Q4 24 | 201.8% | — | ||
| Q3 24 | 23.3% | — | ||
| Q2 24 | 19.8% | — | ||
| Q1 24 | 20.2% | — |
| Q4 25 | $3.50 | — | ||
| Q3 25 | $3.74 | — | ||
| Q2 25 | $2.81 | — | ||
| Q1 25 | $2.81 | — | ||
| Q4 24 | $25.71 | — | ||
| Q3 24 | $2.95 | — | ||
| Q2 24 | $2.05 | — | ||
| Q1 24 | $1.89 | — |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $1.3B | $19.9M |
| Total DebtLower is stronger | — | $254.8M |
| Stockholders' EquityBook value | $3.5B | — |
| Total Assets | $4.2B | $1.1B |
| Debt / EquityLower = less leverage | — | — |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $1.3B | $19.9M | ||
| Q3 25 | $1.3B | — | ||
| Q2 25 | $1.1B | — | ||
| Q1 25 | $1.0B | — | ||
| Q4 24 | $862.9M | — | ||
| Q3 24 | $1.5B | — | ||
| Q2 24 | $1.3B | — | ||
| Q1 24 | $1.3B | — |
| Q4 25 | — | $254.8M | ||
| Q3 25 | — | — | ||
| Q2 25 | — | — | ||
| Q1 25 | — | — | ||
| Q4 24 | — | — | ||
| Q3 24 | — | — | ||
| Q2 24 | — | — | ||
| Q1 24 | — | — |
| Q4 25 | $3.5B | — | ||
| Q3 25 | $3.4B | — | ||
| Q2 25 | $3.2B | — | ||
| Q1 25 | $3.1B | — | ||
| Q4 24 | $3.0B | — | ||
| Q3 24 | $2.4B | — | ||
| Q2 24 | $2.2B | — | ||
| Q1 24 | $2.1B | — |
| Q4 25 | $4.2B | $1.1B | ||
| Q3 25 | $4.1B | — | ||
| Q2 25 | $3.9B | — | ||
| Q1 25 | $3.7B | — | ||
| Q4 24 | $3.5B | — | ||
| Q3 24 | $2.9B | — | ||
| Q2 24 | $2.6B | — | ||
| Q1 24 | $2.6B | — |
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 | $104.9M | $-55.2M |
| Free Cash FlowOCF − Capex | $63.9M | $-59.7M |
| FCF MarginFCF / Revenue | 8.5% | -11.1% |
| Capex IntensityCapex / Revenue | 5.5% | 0.8% |
| Cash ConversionOCF / Net Profit | 0.61× | -1.54× |
| TTM Free Cash FlowTrailing 4 quarters | $666.2M | — |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $104.9M | $-55.2M | ||
| Q3 25 | $239.3M | — | ||
| Q2 25 | $237.6M | — | ||
| Q1 25 | $256.4M | — | ||
| Q4 24 | $167.7M | — | ||
| Q3 24 | $231.7M | — | ||
| Q2 24 | $141.0M | — | ||
| Q1 24 | $248.1M | — |
| Q4 25 | $63.9M | $-59.7M | ||
| Q3 25 | $196.8M | — | ||
| Q2 25 | $189.5M | — | ||
| Q1 25 | $216.0M | — | ||
| Q4 24 | $102.9M | — | ||
| Q3 24 | $197.9M | — | ||
| Q2 24 | $109.5M | — | ||
| Q1 24 | $232.1M | — |
| Q4 25 | 8.5% | -11.1% | ||
| Q3 25 | 26.7% | — | ||
| Q2 25 | 28.5% | — | ||
| Q1 25 | 33.9% | — | ||
| Q4 24 | 16.5% | — | ||
| Q3 24 | 31.9% | — | ||
| Q2 24 | 21.6% | — | ||
| Q1 24 | 50.7% | — |
| Q4 25 | 5.5% | 0.8% | ||
| Q3 25 | 5.8% | — | ||
| Q2 25 | 7.2% | — | ||
| Q1 25 | 6.3% | — | ||
| Q4 24 | 10.4% | — | ||
| Q3 24 | 5.5% | — | ||
| Q2 24 | 6.2% | — | ||
| Q1 24 | 3.5% | — |
| Q4 25 | 0.61× | -1.54× | ||
| Q3 25 | 1.33× | — | ||
| Q2 25 | 1.76× | — | ||
| Q1 25 | 1.90× | — | ||
| Q4 24 | 0.13× | — | ||
| Q3 24 | 1.60× | — | ||
| Q2 24 | 1.40× | — | ||
| Q1 24 | 2.68× | — |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
MPWR
Segment breakdown not available.
SGU
| Home Heating Oil And Propane | $372.6M | 69% |
| Motor Fuel And Other Petroleum Products | $75.4M | 14% |
| Equipment Installations | $39.6M | 7% |
| Equipment Maintenance Service Contracts | $30.3M | 6% |
| Billable Call Services | $21.4M | 4% |
