ACMR vs CAMT vs ONTO vs ICHR vs MKSI

For growth investors, Camtek Ltd.

(CAMT) is the stronger pick with 36. 1% revenue growth year-over-year, versus 1. 8% for Onto Innovation Inc. (ONTO). ACM Research, Inc. (ACMR) offers the better valuation at 43. 2x trailing P/E (29. 7x forward), making it the more compelling value choice. Analysts rate ACM Research, Inc. (ACMR) a "Buy" — based on 10 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, ACM Research, Inc.

(ACMR) is the cheapest at 43. 2x versus Onto Innovation Inc. at 98. 6x. On forward P/E, ACM Research, Inc. is actually cheaper at 29. 7x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: ACM Research, Inc. wins at 0. 84x versus Camtek Ltd. 's 1. 59x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, Camtek Ltd.

(CAMT) delivered a total return of +526. 7%, compared to +28. 9% for Ichor Holdings, Ltd. (ICHR). Over 10 years, the gap is even starker: CAMT returned +106. 7% versus ICHR's +629. 1%. 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), Camtek Ltd.

(CAMT) is the lower-risk stock at 1. 99β versus Ichor Holdings, Ltd. 's 3. 93β — meaning ICHR is approximately 97% more volatile than CAMT relative to the S&P 500. On balance sheet safety, Onto Innovation Inc. (ONTO) carries a lower debt/equity ratio of 1% versus 173% for MKS Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Camtek Ltd.

(CAMT) is pulling ahead at 36. 1% versus 1. 8% for Onto Innovation Inc. (ONTO). On earnings-per-share growth, the picture is similar: MKS Inc. grew EPS 55. 5% year-over-year, compared to -140. 6% for Ichor Holdings, Ltd.. Over a 3-year CAGR, ACMR leads at 32. 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.

Camtek Ltd.

(CAMT) is the more profitable company, earning 27. 6% net margin versus -5. 6% for Ichor Holdings, Ltd. — meaning it keeps 27. 6% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: CAMT leads at 25. 2% versus -4. 1% for ICHR. At the gross margin level — before operating expenses — ONTO leads at 49. 7%, 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, ACM Research, Inc. (ACMR) is the more undervalued stock at a PEG of 0. 84x versus Camtek Ltd. 's 1. 59x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, ACM Research, Inc. (ACMR) trades at 29. 7x forward P/E versus 62. 2x for Ichor Holdings, Ltd. — 32. 6x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for ONTO: 12. 5% to $308. 33.

In this comparison, CAMT (0.

6% yield), MKSI (0. 3% yield), ACMR (0. 2% yield) pay a dividend. ONTO, ICHR do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Onto Innovation Inc.

(ONTO) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (+1432% 10Y return). ACM Research, Inc. (ACMR) carries a higher beta of 3. 24 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (ONTO: +1432%, ACMR: +30. 7%), 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: ACMR is a small-cap high-growth stock; CAMT is a small-cap high-growth stock; ONTO is a mid-cap quality compounder stock; ICHR is a small-cap quality compounder stock; MKSI is a mid-cap quality compounder stock. CAMT pays a dividend while ACMR, ONTO, ICHR, MKSI 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.