ASYS vs LRCX vs AMAT vs KLAC vs UCTT

For growth investors, KLA Corporation (KLAC) is the stronger pick with 23.

9% revenue growth year-over-year, versus -21. 6% for Amtech Systems, Inc. (ASYS). Applied Materials, Inc. (AMAT) offers the better valuation at 50. 3x trailing P/E (39. 3x forward), making it the more compelling value choice. Analysts rate Amtech Systems, Inc. (ASYS) a "Buy" — based on 9 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, Applied Materials, Inc.

(AMAT) is the cheapest at 50. 3x versus Lam Research Corporation at 70. 9x. On forward P/E, Ultra Clean Holdings, Inc. is actually cheaper at 37. 5x — 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: KLA Corporation wins at 1. 60x versus Lam Research Corporation's 2. 31x — a reasonable growth-adjusted valuation.

Over the past 5 years, KLA Corporation (KLAC) delivered a total return of +532.

7%, compared to +84. 0% for Ultra Clean Holdings, Inc. (UCTT). Over 10 years, the gap is even starker: LRCX returned +39. 2% versus ASYS's +257. 0%. 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), Amtech Systems, Inc.

(ASYS) is the lower-risk stock at 1. 84β versus Ultra Clean Holdings, Inc. 's 3. 21β — meaning UCTT is approximately 75% more volatile than ASYS relative to the S&P 500. On balance sheet safety, Applied Materials, Inc. (AMAT) carries a lower debt/equity ratio of 32% versus 130% for KLA Corporation — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), KLA Corporation (KLAC) is pulling ahead at 23.

9% versus -21. 6% for Amtech Systems, Inc. (ASYS). On earnings-per-share growth, the picture is similar: KLA Corporation grew EPS 49. 8% year-over-year, compared to -869. 2% for Ultra Clean Holdings, Inc.. Over a 3-year CAGR, KLAC leads at 9. 7% 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.

KLA Corporation (KLAC) is the more profitable company, earning 33.

4% net margin versus -38. 2% for Amtech Systems, Inc. — meaning it keeps 33. 4% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: KLAC leads at 43. 1% versus -35. 9% for ASYS. At the gross margin level — before operating expenses — KLAC leads at 62. 3%, 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, KLA Corporation (KLAC) is the more undervalued stock at a PEG of 1. 60x versus Lam Research Corporation's 2. 31x. Both stocks trade at elevated growth-adjusted valuations, so expected growth needs to materialise. On forward earnings alone, Ultra Clean Holdings, Inc. (UCTT) trades at 37. 5x forward P/E versus 67. 2x for Amtech Systems, Inc. — 29. 6x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for UCTT: 14. 8% to $100. 00.

In this comparison, AMAT (0.

4% yield), KLAC (0. 4% yield), LRCX (0. 3% yield) pay a dividend. ASYS, UCTT do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Ultra Clean Holdings, Inc.

(UCTT) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (+1519% 10Y return). Applied Materials, Inc. (AMAT) carries a higher beta of 2. 19 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (UCTT: +1519%, AMAT: +21. 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: ASYS is a small-cap quality compounder stock; LRCX is a large-cap high-growth stock; AMAT is a large-cap quality compounder stock; KLAC is a large-cap high-growth stock; UCTT is a small-cap quality compounder stock. 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.