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Side-by-side financial comparison of POWER INTEGRATIONS INC (POWI) and UNITED STATES LIME & MINERALS INC (USLM). Click either name above to swap in a different company.
POWER INTEGRATIONS INC is the larger business by last-quarter revenue ($103.2M vs $87.9M, roughly 1.2× UNITED STATES LIME & MINERALS INC). UNITED STATES LIME & MINERALS INC runs the higher net margin — 34.7% vs 12.9%, a 21.9% gap on every dollar of revenue. On growth, UNITED STATES LIME & MINERALS INC posted the faster year-over-year revenue change (9.8% vs -1.9%). UNITED STATES LIME & MINERALS INC produced more free cash flow last quarter ($25.7M vs $19.2M). Over the past eight quarters, UNITED STATES LIME & MINERALS INC's revenue compounded faster (10.8% CAGR vs 6.1%).
American Electric Power Company, Inc. is an American domestic electric utility company in the United States. It is one of the largest electric utility companies in the country, with more than five million customers in 11 states.
United States Lime & Minerals Inc is a leading US-based natural resources enterprise that produces high-calcium lime, dolomitic lime, limestone and related mineral products. Its core client segments cover infrastructure construction, steel manufacturing, agricultural soil amendment, environmental emission control and industrial processing, serving customers across North America.
POWI vs USLM — Head-to-Head
Income Statement — Q4 FY2025 vs Q4 FY2025
| Metric | | |
|---|---|---|
| Revenue | $103.2M | $87.9M |
| Net Profit | $13.3M | $30.5M |
| Gross Margin | 52.9% | 48.0% |
| Operating Margin | 8.5% | 41.0% |
| Net Margin | 12.9% | 34.7% |
| Revenue YoY | -1.9% | 9.8% |
| Net Profit YoY | 45.4% | 13.2% |
| EPS (diluted) | $0.24 | $1.06 |
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 | $103.2M | $87.9M | ||
| Q3 25 | $118.9M | $102.0M | ||
| Q2 25 | $115.9M | $91.5M | ||
| Q1 25 | $105.5M | $91.3M | ||
| Q4 24 | $105.3M | $80.1M | ||
| Q3 24 | $115.8M | $89.4M | ||
| Q2 24 | $106.2M | $76.5M | ||
| Q1 24 | $91.7M | $71.7M |
| Q4 25 | $13.3M | $30.5M | ||
| Q3 25 | $-1.4M | $38.8M | ||
| Q2 25 | $1.4M | $30.8M | ||
| Q1 25 | $8.8M | $34.1M | ||
| Q4 24 | $9.1M | $27.0M | ||
| Q3 24 | $14.3M | $33.4M | ||
| Q2 24 | $4.8M | $26.1M | ||
| Q1 24 | $4.0M | $22.4M |
| Q4 25 | 52.9% | 48.0% | ||
| Q3 25 | 54.5% | 51.2% | ||
| Q2 25 | 55.2% | 45.8% | ||
| Q1 25 | 55.2% | 50.6% | ||
| Q4 24 | 54.4% | 44.3% | ||
| Q3 24 | 54.5% | 48.2% | ||
| Q2 24 | 53.2% | 45.5% | ||
| Q1 24 | 52.1% | 42.7% |
| Q4 25 | 8.5% | 41.0% | ||
| Q3 25 | -3.3% | 45.3% | ||
| Q2 25 | -1.2% | 39.0% | ||
| Q1 25 | 6.4% | 43.7% | ||
| Q4 24 | 3.7% | 38.8% | ||
| Q3 24 | 10.0% | 42.6% | ||
| Q2 24 | 1.8% | 39.1% | ||
| Q1 24 | 0.5% | 35.9% |
| Q4 25 | 12.9% | 34.7% | ||
| Q3 25 | -1.1% | 38.0% | ||
| Q2 25 | 1.2% | 33.7% | ||
| Q1 25 | 8.3% | 37.4% | ||
| Q4 24 | 8.7% | 33.7% | ||
| Q3 24 | 12.3% | 37.3% | ||
| Q2 24 | 4.6% | 34.0% | ||
| Q1 24 | 4.3% | 31.3% |
| Q4 25 | $0.24 | $1.06 | ||
| Q3 25 | $-0.02 | $1.35 | ||
| Q2 25 | $0.02 | $1.07 | ||
| Q1 25 | $0.15 | $1.19 | ||
| Q4 24 | $0.15 | $-2.20 | ||
| Q3 24 | $0.25 | $1.16 | ||
| Q2 24 | $0.09 | $0.91 | ||
| Q1 24 | $0.07 | $3.92 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $249.5M | $371.1M |
| Total DebtLower is stronger | — | $0 |
| Stockholders' EquityBook value | $672.8M | $630.8M |
| Total Assets | $772.2M | $681.0M |
| Debt / EquityLower = less leverage | — | 0.00× |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $249.5M | $371.1M | ||
| Q3 25 | $241.9M | $349.5M | ||
| Q2 25 | $268.7M | $319.9M | ||
| Q1 25 | $289.3M | $300.6M | ||
| Q4 24 | $300.0M | $278.0M | ||
| Q3 24 | $303.8M | $255.0M | ||
| Q2 24 | $290.5M | $222.5M | ||
| Q1 24 | $299.6M | $207.0M |
| Q4 25 | — | $0 | ||
| Q3 25 | — | $0 | ||
| Q2 25 | — | $0 | ||
| Q1 25 | — | $0 | ||
| Q4 24 | — | $0 | ||
| Q3 24 | — | $0 | ||
| Q2 24 | — | $0 | ||
| Q1 24 | — | $0 |
| Q4 25 | $672.8M | $630.8M | ||
| Q3 25 | $672.0M | $602.3M | ||
| Q2 25 | $703.8M | $563.3M | ||
| Q1 25 | $735.8M | $532.2M | ||
| Q4 24 | $749.8M | $497.7M | ||
| Q3 24 | $749.2M | $474.2M | ||
| Q2 24 | $730.7M | $441.1M | ||
| Q1 24 | $738.2M | $415.3M |
| Q4 25 | $772.2M | $681.0M | ||
| Q3 25 | $772.5M | $652.8M | ||
| Q2 25 | $797.5M | $607.4M | ||
| Q1 25 | $814.4M | $585.3M | ||
| Q4 24 | $828.8M | $543.2M | ||
| Q3 24 | $825.0M | $521.8M | ||
| Q2 24 | $804.8M | $484.2M | ||
| Q1 24 | $805.8M | $464.0M |
| Q4 25 | — | 0.00× | ||
| Q3 25 | — | 0.00× | ||
| Q2 25 | — | 0.00× | ||
| Q1 25 | — | 0.00× | ||
| Q4 24 | — | 0.00× | ||
| Q3 24 | — | 0.00× | ||
| Q2 24 | — | 0.00× | ||
| Q1 24 | — | 0.00× |
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 | $26.2M | $45.6M |
| Free Cash FlowOCF − Capex | $19.2M | $25.7M |
| FCF MarginFCF / Revenue | 18.6% | 29.2% |
| Capex IntensityCapex / Revenue | 6.8% | 22.6% |
| Cash ConversionOCF / Net Profit | 1.97× | 1.49× |
| TTM Free Cash FlowTrailing 4 quarters | $87.1M | $102.3M |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $26.2M | $45.6M | ||
| Q3 25 | $29.9M | $45.9M | ||
| Q2 25 | $29.1M | $34.0M | ||
| Q1 25 | $26.4M | $39.4M | ||
| Q4 24 | $14.7M | $38.6M | ||
| Q3 24 | $32.9M | $39.0M | ||
| Q2 24 | $17.6M | $21.2M | ||
| Q1 24 | $15.9M | $27.2M |
| Q4 25 | $19.2M | $25.7M | ||
| Q3 25 | $24.2M | $31.3M | ||
| Q2 25 | $23.1M | $20.8M | ||
| Q1 25 | $20.7M | $24.6M | ||
| Q4 24 | $11.7M | $27.6M | ||
| Q3 24 | $27.2M | $33.9M | ||
| Q2 24 | $13.5M | $16.8M | ||
| Q1 24 | $11.6M | $20.3M |
| Q4 25 | 18.6% | 29.2% | ||
| Q3 25 | 20.3% | 30.7% | ||
| Q2 25 | 20.0% | 22.7% | ||
| Q1 25 | 19.6% | 26.9% | ||
| Q4 24 | 11.1% | 34.4% | ||
| Q3 24 | 23.5% | 37.9% | ||
| Q2 24 | 12.7% | 21.9% | ||
| Q1 24 | 12.6% | 28.4% |
| Q4 25 | 6.8% | 22.6% | ||
| Q3 25 | 4.8% | 14.4% | ||
| Q2 25 | 5.1% | 14.5% | ||
| Q1 25 | 5.4% | 16.3% | ||
| Q4 24 | 2.9% | 13.8% | ||
| Q3 24 | 4.9% | 5.8% | ||
| Q2 24 | 3.9% | 5.7% | ||
| Q1 24 | 4.7% | 9.5% |
| Q4 25 | 1.97× | 1.49× | ||
| Q3 25 | — | 1.18× | ||
| Q2 25 | 21.24× | 1.10× | ||
| Q1 25 | 3.00× | 1.16× | ||
| Q4 24 | 1.61× | 1.43× | ||
| Q3 24 | 2.30× | 1.17× | ||
| Q2 24 | 3.64× | 0.81× | ||
| Q1 24 | 4.02× | 1.21× |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
POWI
| Distributors | $65.8M | 64% |
| Other | $10.3M | 10% |
| KR | $9.3M | 9% |
| DE | $7.1M | 7% |
| TW | $5.5M | 5% |
| Emea Other Than Germany | $5.3M | 5% |
USLM
Segment breakdown not available.
