TSEM vs UMC

For growth investors, Tower Semiconductor Ltd.

(TSEM) is the stronger pick with 9. 1% revenue growth year-over-year, versus 2. 3% for United Microelectronics Corporation (UMC). United Microelectronics Corporation (UMC) offers the better valuation at 28. 4x trailing P/E (22. 2x forward), making it the more compelling value choice. Analysts rate Tower Semiconductor Ltd. (TSEM) a "Buy" — based on 14 analyst ratings — the highest consensus in this comparison. The "better buy" depends entirely on your goals: growth investors should weight revenue trajectory, value investors should weight P/E and PEG, and income investors should weight dividend yield and streak.

On trailing P/E, United Microelectronics Corporation (UMC) is the cheapest at 28.

4x versus Tower Semiconductor Ltd. at 108. 2x. On forward P/E, United Microelectronics Corporation is actually cheaper at 22. 2x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: United Microelectronics Corporation wins at 3. 05x versus Tower Semiconductor Ltd. 's 3. 40x.

Over the past 5 years, Tower Semiconductor Ltd.

(TSEM) delivered a total return of +636. 8%, compared to +81. 3% for United Microelectronics Corporation (UMC). Over 10 years, the gap is even starker: TSEM returned +1579% versus UMC's +895. 3%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.

By beta (market sensitivity over 5 years), United Microelectronics Corporation (UMC) is the lower-risk stock at 0.

90β versus Tower Semiconductor Ltd. 's 2. 41β — meaning TSEM is approximately 168% more volatile than UMC relative to the S&P 500. On balance sheet safety, Tower Semiconductor Ltd. (TSEM) carries a lower debt/equity ratio of 6% versus 16% for United Microelectronics Corporation — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Tower Semiconductor Ltd.

(TSEM) is pulling ahead at 9. 1% versus 2. 3% for United Microelectronics Corporation (UMC). On earnings-per-share growth, the picture is similar: Tower Semiconductor Ltd. grew EPS 4. 9% year-over-year, compared to -10. 7% for United Microelectronics Corporation. Over a 3-year CAGR, TSEM leads at -2. 3% annualised revenue growth. Higher growth typically commands a higher valuation multiple — check whether the premium P/E or P/S is justified by the growth rate using the PEG ratio.

United Microelectronics Corporation (UMC) is the more profitable company, earning 17.

6% net margin versus 14. 1% for Tower Semiconductor Ltd. — meaning it keeps 17. 6% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: UMC leads at 18. 5% versus 12. 4% for TSEM. At the gross margin level — before operating expenses — UMC leads at 29. 0%, reflecting greater pricing power or product mix advantage. Stronger margins indicate durable pricing power, lower cost of revenue, or higher mix of software/services. They are one of the clearest signs of business quality.

The PEG ratio (forward P/E divided by expected earnings growth rate) is the most precise measure of undervaluation relative to growth potential.

By this metric, United Microelectronics Corporation (UMC) is the more undervalued stock at a PEG of 3. 05x versus Tower Semiconductor Ltd. 's 3. 40x. Both stocks trade at elevated growth-adjusted valuations, so expected growth needs to materialise. On forward earnings alone, United Microelectronics Corporation (UMC) trades at 22. 2x forward P/E versus 70. 2x for Tower Semiconductor Ltd. — 48. 0x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for TSEM: -26. 7% to $154. 00.

In this comparison, UMC (3.

0% yield) pays a dividend. TSEM does not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, United Microelectronics Corporation (UMC) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0.

90), 3. 0% yield, +895. 3% 10Y return). Tower Semiconductor Ltd. (TSEM) carries a higher beta of 2. 41 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (UMC: +895. 3%, TSEM: +1579%), confirming both are viable long-term holds — but the lower-volatility option typically results in less emotional selling during corrections. Retirement portfolios generally favour predictability over maximum returns. Consult a financial advisor before making allocation decisions.

Both stocks operate in the Technology sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both.

In terms of investment character: TSEM is a mid-cap quality compounder stock; UMC is a mid-cap income-oriented stock. UMC pays a dividend while TSEM does not, making them suitable for different income and tax situations. These fundamental differences mean investors should not choose between them on a single metric — the "better stock" depends entirely on which of these characteristics aligns with your investment strategy.