AOSL vs MCHP vs UMC Stock Comparison

Alpha & Omega Semiconductor, Microchip Technology and United Microelectronics Prices as of Oct 29, 2026 Peers: Industry group
MCHP Microchip Technology Inc
$81.12 +3.0% 1M +29.7% 1Y
Market cap
$42.60B
P/E
116.0x
Revenue (TTM)
$5.12B
Div. yield
0.02%
Semiconductor Manufacturing Technology
2 wins
UMC United Microelectronics Corp
$18.04 -27.0% 1M +144.1% 1Y
Market cap
$40.73B
P/E
15.4x
Revenue (TTM)
$14.11B
Div. yield
–
Semiconductor Manufacturing Technology
8 wins

Head to Head

11 decided of 12

United Microelectronics leads on 8 of the 12 questions below (United Microelectronics 8, Microchip Technology 2, Alpha & Omega Semiconductor 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionAOSLMCHPUMCLeader
Larger companyMarket capitalisation $679.29M $42.60B $40.73B MCHP
Cheaper on earningsLower P/E, profitable companies only -16.2x 116.0x 15.4x UMC
Cheaper on forward earningsLower price / next fiscal year consensus EPS — 21.3x 16.4x UMC
Faster revenue growthRevenue growth, trailing twelve months -2.5% +20.9% +87.7% UMC
More profitableNet margin, trailing twelve months -6.2% 7.2% 18.7% UMC
Better return on capitalReturn on invested capital -5.4% 5.5% 11.6% UMC
Less leveragedLower net debt / EBITDA -12.6x 3.4x -1.0x AOSL
Higher dividend yieldTrailing dividend yield 0.00% 0.02% 0.00% –
Better 1-year returnPrice return, last 12 months -13.9% +29.7% +144.1% UMC
Better 5-year returnAnnualised price return, 5 years -6.5%/yr +1.8%/yr +11.9%/yr UMC
Less volatileAnnualised volatility, 1 year 90.7% 49.4% 64.6% MCHP
Higher overall scoreMean of the five percentile scores vs peers 31/100 40/100 80/100 UMC

Percentile Scorecard

AOSLMCHPUMC

Each axis is the mean percentile of its metrics against the company's industry group. 100 is the best in the group, 50 the middle.

Scores by Axis

AxisAOSLMCHPUMC
Valuation 46 #51 of 94 52 #46 of 94 95 #6 of 94
Growth 2 #90 of 92 42 #54 of 92 78 #21 of 92
Profitability 22 #69 of 88 58 #38 of 88 72 #25 of 88
Financial Health 63 #36 of 96 5 #91 of 96 67 #32 of 96
Shareholder Returns 21 #57 of 72 45 #40 of 72 89 #9 of 72
Overall 31 40 80
  • AOSL ranked among 103 companies in Semiconductors
  • MCHP ranked among 103 companies in Semiconductors
  • UMC ranked among 103 companies in Semiconductors

Price Performance

Price return, split-adjusted, before dividends. Click a name to hide or show it.

Returns

PeriodAOSLMCHPUMCSPY
1 month -10.5%+3.0%-27.0% +0.7%
3 months -20.6%+8.1%-4.9% +3.7%
6 months -43.1%-12.7%+38.1% +7.1%
Year to date +24.7%+27.3%+129.5% +12.8%
1 year -13.9%+29.7%+144.1% +11.9%
3 years +5.3%+14.8%+155.2% +85.2%
3 years, per year +1.7%+4.7%+36.7% +22.8%
5 years -28.7%+9.5%+75.7% +67.6%
5 years, per year -6.5%+1.8%+11.9% +10.9%
10 years +20.9%+169.1%+864.7% +262.0%
10 years, per year +1.9%+10.4%+25.4% +13.7%

Risk

MeasureAOSLMCHPUMCSPY
Volatility, 1Y 90.7%49.4%64.6% 12.7%
Downside volatility, 1Y 98.6%44.1%56.9% 12.6%
Beta vs S&P 500, 1Y 3.472.161.80 1.00
Return / volatility, 1Y -0.150.602.23 0.94
Max drawdown, 5Y -75.3%-64.5%-57.3% -25.4%
From 52-week high -53.7%-21.2%-35.6% -1.2%
52-week high $53.32$102.92$28.01 $779.14
52-week low $17.47$49.02$7.02 $631.97

Valuation History

Weekly multiples on trailing twelve-month fundamentals. Negative or extreme readings (a loss year, a collapsed denominator) are left out so the chart stays readable.

MultipleAOSLMCHPUMC
P/E now vs peer median -17.6xmedian 46.4x 119.8xmedian 46.4x 16.7xmedian 46.4x
P/S now vs peer median 1.1xmedian 7.8x 8.6xmedian 7.8x 3.2xmedian 7.8x
EV/EBITDA now vs peer median 40.6xmedian 27.5x 32.8xmedian 27.5x 11.1xmedian 27.5x
P/FCF now vs peer median -11.0xmedian 40.1x 44.7xmedian 40.1x 20.7xmedian 40.1x
P/B now vs peer median 0.9xmedian 4.7x 6.8xmedian 4.7x 3.1xmedian 4.7x
PEG now vs peer median 0.24median 2.10 -2.58median 2.10 2.62median 2.10

Financial History

Reported figures by fiscal period, placed on the calendar year (or quarter) each period ended in, so companies with different fiscal years line up.

Trailing twelve monthsAOSLMCHPUMC
Revenue $678.93M $5.12B $14.11B
Gross profit $151.54M $3.08B $2.67B
Operating income -$43.20M $794.80M $1.81B
Net income -$42.27M $478.40M $2.64B
Free cash flow -$68.07M $985.70M $2.19B
R&D $103.86M $1.14B $595.72M
EPS (diluted) $-1.40 $0.67 $1.07
Cash & equivalents $180.77M $272.30M $4.48B
Total debt $18.90M $5.36B $781.92M
Shares (diluted) 29.95M 550.50M 2.47B
Enterprise value -$111.58M $41.60B $25.10B

All Metrics

58 metrics · best in bold

Bold marks the best reading: the lowest positive value for multiples, leverage and payout, the highest for everything else. The bar under each value is its percentile against that company's own peers. Hover a value for its rank and the peer median.

Valuation

12 metrics
MetricAOSLMCHPUMC
P/E -17.6x 119.8x 16.7x
P/FCF -11.0x 44.7x 20.7x
P/Operating cash flow -45.8x 36.8x 12.1x
P/S 1.1x 8.6x 3.2x
P/B 0.9x 6.8x 3.1x
P/Tangible book 0.9x 9.9x 3.1x
EV/EBITDA 40.6x 32.8x 11.1x
EV/EBIT -13.2x 61.8x 23.1x
EV/Revenue 0.8x 9.6x 3.0x
EV/FCF -8.4x 49.9x 19.0x
EV/Operating cash flow -35.0x 41.0x 11.1x
PEG (3Y EPS CAGR) 0.24 -2.58 2.62

Growth

14 metrics
MetricAOSLMCHPUMC
Revenue growth (1Y) -2.5% 20.9% 87.7%
Revenue CAGR (3Y) -0.6% -16.4% 22.9%
Gross profit growth (1Y) -5.9% 33.6% 22.7%
Gross profit CAGR (3Y) -8.8% -19.7% -2.4%
Operating income growth (1Y) -51.9% 627.2% 29.9%
Operating income CAGR (3Y) -57.6% -37.9% -6.7%
Net income growth (1Y) 56.4% 422.4% 97.8%
Net income CAGR (3Y) -75.6% -41.6% 5.5%
EPS growth (1Y) -101.0% 301.6% 97.8%
EPS CAGR (3Y) -74.9% -46.5% 6.4%
Operating cash flow growth (1Y) -155.0% 50.4% 19.0%
Operating cash flow CAGR (3Y) -40.9% -31.8% 5.1%
Free cash flow growth (1Y) -806.2% 67.1% 410.9%
Free cash flow CAGR (3Y) 8.9% -32.4% 11.3%

Profitability

14 metrics
MetricAOSLMCHPUMC
Gross margin 22.3% 60.2% 18.9%
EBITDA margin 2.1% 29.3% 26.7%
Operating margin -6.4% 15.5% 12.8%
Pretax margin -5.2% 11.3% 30.5%
Net margin -6.2% 7.2% 18.7%
FCF margin -10.0% 19.2% 15.5%
Operating cash flow margin -2.4% 23.4% 26.7%
Return on equity -5.3% 7.4% 18.4%
Return on assets -4.3% 3.3% 12.5%
Return on invested capital -5.4% 5.5% 11.6%
Return on capital employed -5.1% 6.1% 9.6%
Asset turnover 0.7x 0.4x 0.7x
Cash conversion (OCF / net income) 0.4x 2.5x 1.4x
Stock comp / revenue 3.9% 5.4% 0.1%

Financial Health

11 metrics
MetricAOSLMCHPUMC
Debt / assets 0.4% 37.2% 3.7%
Debt / equity 0.0x 0.8x 0.1x
Net debt / EBITDA -12.6x 3.4x -1.0x
Debt / FCF -0.1x 5.4x 0.4x
Liabilities / assets 17.2% 55.2% 30.3%
Equity / assets 82.8% 44.8% 69.7%
Interest coverage -55.7x 3.7x 33.0x
Current ratio 3.4x 1.9x 3.3x
Quick ratio 1.8x 1.0x 2.6x
Cash ratio 1.4x 0.2x 2.0x
Altman Z-score 4.37 4.43 –

Shareholder Returns

7 metrics
MetricAOSLMCHPUMC
Dividend yield – 2.3% 2.2%
Net buyback yield -0.5% -0.1% 0.7%
Shareholder yield -0.5% 2.1% 2.9%
Payout ratio (earnings) – 206.0% –
Payout ratio (FCF) – 100.0% –
Dividend growth (1Y) – 0.7% –
Dividend CAGR (3Y) – 9.5% –

Analyst Estimates

Solid lines are reported fiscal-year results; dashed lines are the consensus for the years ahead. Hover a year for the analysts' high and low, and how each result compared with its estimate.

ConsensusAOSLMCHPUMC
Forward P/E – 21.3xFY2026 16.4xFY2026
EPS, next fiscal year $-0.59FY2027 $3.80FY2026 $1.10FY2026
EPS growth, next FY – +131.7%FY2026 +107.5%FY2026
EPS growth, the year after – +23.9% -2.7%
Revenue, next fiscal year $660.97MFY2027 $6.62BFY2026 $8.52BFY2026
Revenue growth, next FY -2.6%FY2027 +40.6%FY2026 +12.1%FY2026
Revenue growth, the year after +9.5% +20.4% +24.7%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersAOSLMCHPUMC
Held by institutions 75.5% 100.0% 7.1%
Institutions holding 217 1,285 363
Change in shares held, QoQ +3.2% +7.0% +3.2%
Institutions buying 125 681 220
Institutions selling 65 433 110
Buyers to sellers 1.92 1.57 2.00

Return Correlation

Daily returns, last 12 months

1.00 means two stocks move in lockstep, 0 that they move independently. Pairs below about 0.5 diversify each other.

AOSLMCHPUMC
AOSL 1.00 0.59 0.48
MCHP 0.59 1.00 0.39
UMC 0.48 0.39 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, AOSL, MCHP and UMC?

Microchip Technology (MCHP) is the largest by market capitalisation: Alpha & Omega Semiconductor (AOSL) $679.29M, Microchip Technology (MCHP) $42.60B, United Microelectronics (UMC) $40.73B.

Which stock is cheaper, AOSL, MCHP and UMC?

United Microelectronics (UMC) trades on the lowest price-to-earnings ratio (Alpha & Omega Semiconductor (AOSL) -16.2x, Microchip Technology (MCHP) 116.0x, United Microelectronics (UMC) 15.4x). On next year's consensus earnings, United Microelectronics (UMC) is cheapest (Microchip Technology (MCHP) 21.3x, United Microelectronics (UMC) 16.4x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

United Microelectronics (UMC) grew revenue fastest over the trailing twelve months: Alpha & Omega Semiconductor (AOSL) -2.5%, Microchip Technology (MCHP) +20.9%, United Microelectronics (UMC) +87.7%.

Which company is more profitable?

United Microelectronics (UMC) has the highest net margin (Alpha & Omega Semiconductor (AOSL) -6.2%, Microchip Technology (MCHP) 7.2%, United Microelectronics (UMC) 18.7%). On return on invested capital, United Microelectronics (UMC) leads (Alpha & Omega Semiconductor (AOSL) -5.4%, Microchip Technology (MCHP) 5.5%, United Microelectronics (UMC) 11.6%).

Which stock has performed better?

Over the past year United Microelectronics (UMC) returned the most: Alpha & Omega Semiconductor (AOSL) -13.9%, Microchip Technology (MCHP) +29.7%, United Microelectronics (UMC) +144.1%. Over five years, United Microelectronics (UMC) compounded fastest (Alpha & Omega Semiconductor (AOSL) -6.5%/yr, Microchip Technology (MCHP) +1.8%/yr, United Microelectronics (UMC) +11.9%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Only one of these companies pays a dividend: Alpha & Omega Semiconductor (AOSL) 0.00%, Microchip Technology (MCHP) 0.02%, United Microelectronics (UMC) 0.00%. Alpha & Omega Semiconductor (AOSL) and United Microelectronics (UMC) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Microchip Technology (MCHP) has been the steadiest (Alpha & Omega Semiconductor (AOSL) 90.7%, Microchip Technology (MCHP) 49.4%, United Microelectronics (UMC) 64.6%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, AOSL, MCHP and UMC?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, United Microelectronics (UMC) leads on 8. Business Quant does not give investment advice; use the comparison as a starting point for your own research.

Data from SEC filings, exchange prices and consensus estimates, via Business Quant. Percentile scores compare each company with its own peer group, so two companies' scores are each relative to different peers unless you rank against the whole market. Price returns exclude dividends. Nothing on this page is investment advice.