SDA vs ACMR vs ICHR vs UCTT vs MKSI

For growth investors, SunCar Technology Group Inc.

(SDA) is the stronger pick with 21. 5% revenue growth year-over-year, versus -2. 1% for Ultra Clean Holdings, Inc. (UCTT). 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 SunCar Technology Group Inc. (SDA) a "Buy" — based on 1 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 MKS Inc. at 68. 8x. On forward P/E, SunCar Technology Group Inc. is actually cheaper at 8. 9x — notably different from the trailing picture, reflecting expected earnings growth.

Over the past 5 years, ACM Research, Inc.

(ACMR) delivered a total return of +133. 4%, compared to -89. 1% for SunCar Technology Group Inc. (SDA). Over 10 years, the gap is even starker: ACMR returned +30. 7% versus SDA's -89. 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), SunCar Technology Group Inc.

(SDA) is the lower-risk stock at 0. 75β versus Ichor Holdings, Ltd. 's 3. 93β — meaning ICHR is approximately 425% more volatile than SDA relative to the S&P 500. On balance sheet safety, ACM Research, Inc. (ACMR) carries a lower debt/equity ratio of 16% versus 173% for MKS Inc. — giving it more financial flexibility in a downturn.

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

(SDA) is pulling ahead at 21. 5% versus -2. 1% for Ultra Clean Holdings, Inc. (UCTT). On earnings-per-share growth, the picture is similar: MKS Inc. grew EPS 55. 5% year-over-year, compared to -869. 2% for Ultra Clean Holdings, Inc.. 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.

ACM Research, Inc.

(ACMR) is the more profitable company, earning 10. 4% net margin versus -15. 5% for SunCar Technology Group Inc. — meaning it keeps 10. 4% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: MKSI leads at 14. 4% versus -13. 2% for SDA. At the gross margin level — before operating expenses — ACMR leads at 44. 4%, 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.

On forward earnings alone, SunCar Technology Group Inc.

(SDA) trades at 8. 9x forward P/E versus 62. 2x for Ichor Holdings, Ltd. — 53. 3x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for SDA: 460. 7% to $6. 00.

In this comparison, MKSI (0.

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

For long-horizon retirement investors, SunCar Technology Group Inc.

(SDA) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 75)). 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 (SDA: -89. 1%, 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.

These companies operate in different sectors (SDA (Consumer Cyclical) and ACMR (Technology) and ICHR (Technology) and UCTT (Technology) and MKSI (Technology)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: SDA is a small-cap high-growth stock; ACMR is a small-cap high-growth stock; ICHR is a small-cap quality compounder stock; UCTT is a small-cap quality compounder stock; MKSI is a mid-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.