UMC vs TSM vs STM Stock Comparison

United Microelectronics, Taiwan Semiconductor Manufacturing and STMicroelectronics Prices as of Oct 26, 2026 Peers: Industry group
UMC United Microelectronics Corp
$19.18 -21.1% 1M +154.4% 1Y
Market cap
$47.53B
P/E
18.1x
Revenue (TTM)
$13.76B
Div. yield
–
Semiconductor Manufacturing Technology
4 wins
STM STMicroelectronics N.V.
$45.21 -12.9% 1M +81.9% 1Y
Market cap
$43.38B
P/E
93.1x
Revenue (TTM)
$13.10B
Div. yield
–
Semiconductor Manufacturing Technology

Head to Head

11 decided of 12

Taiwan Semiconductor Manufacturing leads on 7 of the 12 questions below (Taiwan Semiconductor Manufacturing 7, United Microelectronics 4). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionUMCTSMSTMLeader
Larger companyMarket capitalisation $47.53B $2.27T $43.38B TSM
Cheaper on earningsLower P/E, profitable companies only 18.1x 28.9x 93.1x UMC
Cheaper on forward earningsLower price / next fiscal year consensus EPS 17.4x 25.2x 35.0x UMC
Faster revenue growthRevenue growth, trailing twelve months +85.6% +34.4% +10.5% UMC
More profitableNet margin, trailing twelve months 19.1% 55.0% 3.6% TSM
Better return on capitalReturn on invested capital 10.6% 33.4% 3.9% TSM
Less leveragedLower net debt / EBITDA -0.9x -1.0x — TSM
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +154.4% +43.9% +81.9% UMC
Better 5-year returnAnnualised price return, 5 years +12.1%/yr +30.1%/yr +0.1%/yr TSM
Less volatileAnnualised volatility, 1 year 64.5% 39.2% 59.9% TSM
Higher overall scoreMean of the five percentile scores vs peers 72/100 74/100 40/100 TSM

Percentile Scorecard

UMCTSMSTM

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

AxisUMCTSMSTM
Valuation 82 #18 of 95 67 #32 of 95 79 #21 of 95
Growth 58 #40 of 93 87 #13 of 93 11 #83 of 93
Profitability 72 #26 of 91 92 #8 of 91 40 #55 of 91
Financial Health 56 #45 of 101 69 #32 of 101 40 #61 of 101
Shareholder Returns 91 #8 of 75 54 #35 of 75 30 #53 of 75
Overall 72 74 40
  • UMC ranked among 104 companies in Semiconductors
  • TSM ranked among 104 companies in Semiconductors
  • STM ranked among 104 companies in Semiconductors

Price Performance

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

Returns

PeriodUMCTSMSTMSPY
1 month -21.1%-5.8%-12.9% -0.8%
3 months +0.5%+6.3%-15.4% +3.5%
6 months +64.1%+4.8%-10.6% +7.0%
Year to date +144.0%+39.7%+74.3% +12.2%
1 year +154.4%+43.9%+81.9% +13.0%
3 years +171.3%+393.5%+14.2% +86.3%
3 years, per year +39.5%+70.3%+4.5% +23.1%
5 years +76.6%+273.1%+0.4% +68.6%
5 years, per year +12.1%+30.1%+0.1% +11.0%
10 years +948.1%+1,259.8%+468.7% +258.0%
10 years, per year +26.5%+29.8%+19.0% +13.6%

Risk

MeasureUMCTSMSTMSPY
Volatility, 1Y 64.5%39.2%59.9% 12.7%
Downside volatility, 1Y 56.8%39.1%61.2% 12.7%
Beta vs S&P 500, 1Y 1.792.132.86 1.00
Return / volatility, 1Y 2.391.121.37 1.02
Max drawdown, 5Y -57.3%-57.1%-67.2% -25.4%
From 52-week high -31.5%-12.7%-43.4% -1.8%
52-week high $28.01$485.91$79.91 $779.14
52-week low $7.02$275.06$21.20 $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.

MultipleUMCTSMSTM
P/E now vs peer median 17.8xmedian 42.1x 28.0xmedian 42.1x 86.7xmedian 42.1x
P/S now vs peer median 3.5xmedian 7.1x 15.4xmedian 7.1x 3.1xmedian 7.1x
EV/EBITDA now vs peer median 12.8xmedian 27.5x 20.6xmedian 27.5x —median 27.5x
P/FCF now vs peer median 24.4xmedian 37.2x 26.0xmedian 37.2x —median 37.2x
P/B now vs peer median 3.5xmedian 4.2x 10.9xmedian 4.2x 2.1xmedian 4.2x
PEG now vs peer median 26.03median 2.23 0.79median 2.23 -1.66median 2.23

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 monthsUMCTSMSTM
Revenue $13.76B $142.94B $13.10B
Gross profit $2.47B $91.71B $4.49B
Operating income $1.60B $80.08B $804.00M
Net income $2.62B $74.55B -$33.00M
Free cash flow $1.98B $84.59B –
R&D $609.13M $8.68B $2.11B
EPS (diluted) $1.07 $15.16 $0.50
Cash & equivalents $3.91B $98.36B $3.10B
Total debt $4.90B $22.36B $1.91B
Shares (diluted) 2.47B 5.19B 923.05M
Enterprise value $32.78B $1.89T $29.25B

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
MetricUMCTSMSTM
P/E 17.8x 28.0x 86.7x
P/FCF 24.4x 26.0x –
P/Operating cash flow 13.7x 26.0x –
P/S 3.5x 15.4x 3.1x
P/B 3.5x 10.9x 2.1x
P/Tangible book 3.5x 10.9x 2.4x
EV/EBITDA 12.8x 20.6x –
EV/EBIT 28.3x 26.3x 47.0x
EV/Revenue 3.3x 14.7x 2.9x
EV/FCF 22.8x 24.9x –
EV/Operating cash flow 12.8x 24.9x –
PEG (3Y EPS CAGR) 26.03 0.79 -1.66

Growth

14 metrics
MetricUMCTSMSTM
Revenue growth (1Y) 85.6% 34.4% 10.5%
Revenue CAGR (3Y) 18.5% 25.3% 0.2%
Gross profit growth (1Y) 11.3% 47.2% 5.7%
Gross profit CAGR (3Y) -10.1% 29.2% -18.8%
Operating income growth (1Y) 9.6% 52.1% 28.0%
Operating income CAGR (3Y) -16.5% 32.0% -45.3%
Net income growth (1Y) 104.8% 57.8% -106.8%
Net income CAGR (3Y) -0.2% 33.5% -26.2%
EPS growth (1Y) 116.8% 80.8% -27.2%
EPS CAGR (3Y) 0.7% 35.6% -52.3%
Operating cash flow growth (1Y) 17.5% 27.1% –
Operating cash flow CAGR (3Y) -3.7% 21.4% –
Free cash flow growth (1Y) 447.4% 27.1% –
Free cash flow CAGR (3Y) -7.5% 21.4% –

Profitability

14 metrics
MetricUMCTSMSTM
Gross margin 18.0% 64.2% 34.3%
EBITDA margin 25.6% 71.4% –
Operating margin 11.6% 56.0% 6.1%
Pretax margin 30.3% 60.0% 5.7%
Net margin 19.1% 55.0% 3.6%
FCF margin 14.4% 59.2% –
Operating cash flow margin 25.6% 59.2% –
Return on equity 19.7% 37.3% 2.6%
Return on assets 13.2% 7.1% 1.8%
Return on invested capital 10.6% 33.4% 3.9%
Return on capital employed 9.7% 8.4% 3.7%
Asset turnover 0.7x 0.1x 0.5x
Cash conversion (OCF / net income) 1.3x 1.1x –
Stock comp / revenue 0.1% 0.0% 1.4%

Financial Health

11 metrics
MetricUMCTSMSTM
Debt / assets 3.5% 2.3% 6.7%
Debt / equity 0.1x 0.0x 0.1x
Net debt / EBITDA -0.9x -1.0x –
Debt / FCF 0.4x 0.1x –
Liabilities / assets 33.3% 31.4% 33.6%
Equity / assets 66.7% 68.6% 66.4%
Interest coverage 30.3x 191.8x –
Current ratio 2.2x 2.5x 2.5x
Quick ratio 1.6x 2.0x 1.5x
Cash ratio 1.2x 1.8x 0.8x
Altman Z-score – 17.43 4.06

Shareholder Returns

7 metrics
MetricUMCTSMSTM
Dividend yield 2.1% 0.9% 0.8%
Net buyback yield – – -0.8%
Shareholder yield 2.1% 0.9% 0.0%
Payout ratio (earnings) – – –
Payout ratio (FCF) – – –
Dividend growth (1Y) – – –
Dividend CAGR (3Y) – – –

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.

ConsensusUMCTSMSTM
Forward P/E 17.4xFY2026 25.2xFY2026 35.0xFY2026
EPS, next fiscal year $1.10FY2026 $16.82FY2026 $1.29FY2026
EPS growth, next FY +107.5%FY2026 +60.3%FY2026 +143.4%FY2026
EPS growth, the year after -2.7% +40.1% +103.1%
Revenue, next fiscal year $8.52BFY2026 $178.59BFY2026 $13.79BFY2026
Revenue growth, next FY +12.1%FY2026 +48.0%FY2026 +16.9%FY2026
Revenue growth, the year after +24.7% +41.0% +18.2%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersUMCTSMSTM
Held by institutions 7.1% 14.8% 19.0%
Institutions holding 362 3,568 603
Change in shares held, QoQ +3.2% -0.6% +57.4%
Institutions buying 220 1,902 429
Institutions selling 109 1,292 108
Buyers to sellers 2.02 1.47 3.97

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.

UMCTSMSTM
UMC 1.00 0.44 0.42
TSM 0.44 1.00 0.61
STM 0.42 0.61 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, UMC, TSM and STM?

Taiwan Semiconductor Manufacturing (TSM) is the largest by market capitalisation: United Microelectronics (UMC) $47.53B, Taiwan Semiconductor Manufacturing (TSM) $2.27T, STMicroelectronics (STM) $43.38B.

Which stock is cheaper, UMC, TSM and STM?

United Microelectronics (UMC) trades on the lowest price-to-earnings ratio (United Microelectronics (UMC) 18.1x, Taiwan Semiconductor Manufacturing (TSM) 28.9x, STMicroelectronics (STM) 93.1x). On next year's consensus earnings, United Microelectronics (UMC) is cheapest (United Microelectronics (UMC) 17.4x, Taiwan Semiconductor Manufacturing (TSM) 25.2x, STMicroelectronics (STM) 35.0x). 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: United Microelectronics (UMC) +85.6%, Taiwan Semiconductor Manufacturing (TSM) +34.4%, STMicroelectronics (STM) +10.5%.

Which company is more profitable?

Taiwan Semiconductor Manufacturing (TSM) has the highest net margin (United Microelectronics (UMC) 19.1%, Taiwan Semiconductor Manufacturing (TSM) 55.0%, STMicroelectronics (STM) 3.6%). On return on invested capital, Taiwan Semiconductor Manufacturing (TSM) leads (United Microelectronics (UMC) 10.6%, Taiwan Semiconductor Manufacturing (TSM) 33.4%, STMicroelectronics (STM) 3.9%).

Which stock has performed better?

Over the past year United Microelectronics (UMC) returned the most: United Microelectronics (UMC) +154.4%, Taiwan Semiconductor Manufacturing (TSM) +43.9%, STMicroelectronics (STM) +81.9%. Over five years, Taiwan Semiconductor Manufacturing (TSM) compounded fastest (United Microelectronics (UMC) +12.1%/yr, Taiwan Semiconductor Manufacturing (TSM) +30.1%/yr, STMicroelectronics (STM) +0.1%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Taiwan Semiconductor Manufacturing (TSM) has been the steadiest (United Microelectronics (UMC) 64.5%, Taiwan Semiconductor Manufacturing (TSM) 39.2%, STMicroelectronics (STM) 59.9%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, UMC, TSM and STM?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Taiwan Semiconductor Manufacturing (TSM) leads on 7. 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.