Monolithic Power Systems, Inc. (MPWR) vs United Microelectronics Corporation (UMC)
MPWR leads on 10 of 16 compared metrics, though UMC is the cheaper stock.
A side-by-side comparison of Monolithic Power Systems, Inc. and United Microelectronics Corporation across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of June 25, 2026. The ● marks the stronger figure on each row (cheaper multiple, higher margin/return).
MPWR
Monolithic Power Systems, Inc.
$1434.95Technology
UMC
United Microelectronics Corporation
$28.01Technology
Total return — MPWR vs UMC
growth of $100 · last 22yMPWR +14482.8%UMC +450.4%MPWR compounded faster
Log scale — wide-divergence pair
MPWR UMC
MPWR vs UMC: by the numbers
- •MPWR is the larger company ($70.50B vs $69.31B market cap).
- •UMC trades at the lower earnings multiple (51.96 vs 103.46 P/E).
- •MPWR converts more revenue to profit (22.84% vs 20.72% net margin).
- •MPWR grew revenue faster over the past five years (25.95% vs 10.42% CAGR).
- •UMC pays the higher dividend yield (1.73% vs 0.47%).
Which is better, MPWR or UMC?
Metric tally: MPWR 10 · UMC 6It depends on what you're optimizing for:
ValueUMC(lower P/E)
GrowthMPWR(faster 5Y revenue CAGR)
IncomeUMC(higher dividend yield)
QualityMPWR(higher ROIC)
Metrics side by side
Valuation
| Metric | MPWR | UMC |
|---|---|---|
| P/E ratio | 103.46 | 51.96● |
| Forward P/E | 47.57 | — |
| P/S ratio | 23.90 | 9.13● |
| P/B ratio | 19.21 | 5.78● |
| PEG ratio | 3.64● | 9.91 |
| EV / EBITDA | 77.75 | 19.18● |
| FCF yield | 0.89% | 2.30%● |
Profitability
| Metric | MPWR | UMC |
|---|---|---|
| Gross margin | 55.18%● | 29.60% |
| Operating margin | 27.09%● | 18.85% |
| Net margin | 22.84%● | 20.72% |
| ROE | 18.37%● | 12.74% |
| ROIC | 15.30%● | 7.35% |
Dividends
| Metric | MPWR | UMC |
|---|---|---|
| Dividend yield | 0.47% | 1.73%● |
| Payout ratio | 52.11% | 90.81% |
Growth (annualized)
| Metric | MPWR | UMC |
|---|---|---|
| Revenue CAGR (5Y) | 25.95%● | 10.42% |
| EPS CAGR (5Y) | 28.43%● | 4.35% |
| FCF CAGR (5Y) | 22.36%● | 4.51% |
| Total return CAGR (5Y) | 32.87%● | 31.34% |
Frequently asked
- Which is better, MPWR or UMC?
- It depends on your goal. value: UMC (lower P/E); growth: MPWR (faster 5Y revenue CAGR); income: UMC (higher dividend yield); quality: MPWR (higher ROIC). Across all compared metrics, MPWR leads 10 to 6.
- Is MPWR or UMC cheaper?
- On trailing earnings, UMC is cheaper: MPWR trades at a 103.46 P/E and UMC at 51.96.
- Which has grown faster, MPWR or UMC?
- Over the past five years, MPWR grew revenue faster — MPWR at a 25.95% CAGR versus UMC at 10.42%.
- Does MPWR or UMC pay a bigger dividend?
- MPWR yields 0.47% and UMC yields 1.73% based on trailing dividends and the latest price.
- Is MPWR or UMC more profitable?
- MPWR runs the higher net margin — MPWR at 22.84% versus UMC at 20.72%.
Go deeper
Dig into the metrics
Monolithic Power Systems P/E ratioUnited Microelectronics P/E ratioMonolithic Power Systems dividend yieldUnited Microelectronics dividend yieldMonolithic Power Systems ROEUnited Microelectronics ROEMonolithic Power Systems operating marginUnited Microelectronics operating marginMonolithic Power Systems revenue growthUnited Microelectronics revenue growthMonolithic Power Systems free cash flowUnited Microelectronics free cash flow
Monolithic Power Systems & United Microelectronics appear in these rankings
Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified June 25, 2026.