SKYT vs TSEM vs GFS vs UMC

For growth investors, SkyWater Technology, Inc.

(SKYT) is the stronger pick with 29. 2% revenue growth year-over-year, versus 0. 6% for GLOBALFOUNDRIES Inc. (GFS). SkyWater Technology, Inc. (SKYT) offers the better valuation at 13. 5x trailing P/E, 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, SkyWater Technology, Inc.

(SKYT) is the cheapest at 13. 5x versus Tower Semiconductor Ltd. at 108. 2x. On forward P/E, United Microelectronics Corporation is actually cheaper at 22. 2x — notably different from the trailing picture, reflecting expected earnings growth. 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 +52. 9% for GLOBALFOUNDRIES Inc. (GFS). Over 10 years, the gap is even starker: TSEM returned +1579% versus GFS's +52. 9%. 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 SkyWater Technology, Inc. 's 2. 67β — meaning SKYT is approximately 197% 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 128% for SkyWater Technology, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), SkyWater Technology, Inc.

(SKYT) is pulling ahead at 29. 2% versus 0. 6% for GLOBALFOUNDRIES Inc. (GFS). On earnings-per-share growth, the picture is similar: SkyWater Technology, Inc. grew EPS 1843% year-over-year, compared to -10. 7% for United Microelectronics Corporation. Over a 3-year CAGR, SKYT leads at 27. 6% 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.

SkyWater Technology, Inc.

(SKYT) is the more profitable company, earning 26. 9% net margin versus 13. 0% for GLOBALFOUNDRIES Inc. — meaning it keeps 26. 9% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: UMC leads at 18. 5% versus -0. 3% for SKYT. 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 SKYT: 5. 9% to $35. 00.

In this comparison, UMC (3.

0% yield) pays a dividend. SKYT, TSEM, GFS do 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). SkyWater Technology, Inc. (SKYT) carries a higher beta of 2. 67 — 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%, SKYT: +86. 4%), 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: SKYT is a small-cap high-growth stock; TSEM is a mid-cap quality compounder stock; GFS is a mid-cap quality compounder stock; UMC is a mid-cap income-oriented stock. UMC pays a dividend while SKYT, TSEM, GFS do 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.