WDH vs ZH vs HUYA vs ACMR

For growth investors, ACM Research, Inc.

(ACMR) is the stronger pick with 15. 2% revenue growth year-over-year, versus -13. 1% for HUYA Inc. (HUYA). Waterdrop Inc. (WDH) offers the better valuation at 10. 9x trailing P/E (8. 8x forward), making it the more compelling value choice. Analysts rate Waterdrop Inc. (WDH) a "Buy" — based on 3 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, Waterdrop Inc.

(WDH) is the cheapest at 10. 9x versus ACM Research, Inc. at 43. 2x. On forward P/E, HUYA Inc. is actually cheaper at 4. 0x — 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 -93. 1% for Zhihu Inc. (ZH). Over 10 years, the gap is even starker: ACMR returned +30. 7% versus ZH's -93. 4%. 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), HUYA Inc.

(HUYA) is the lower-risk stock at 1. 17β versus ACM Research, Inc. 's 3. 24β — meaning ACMR is approximately 176% more volatile than HUYA relative to the S&P 500. On balance sheet safety, Zhihu Inc. (ZH) carries a lower debt/equity ratio of 0% versus 16% for ACM Research, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), ACM Research, Inc.

(ACMR) is pulling ahead at 15. 2% versus -13. 1% for HUYA Inc. (HUYA). On earnings-per-share growth, the picture is similar: Waterdrop Inc. grew EPS 132. 6% year-over-year, compared to -10. 5% for ACM Research, 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.

Waterdrop Inc.

(WDH) is the more profitable company, earning 13. 3% net margin versus -4. 8% for Zhihu Inc. — meaning it keeps 13. 3% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: ACMR leads at 12. 1% versus -13. 4% for ZH. At the gross margin level — before operating expenses — ZH leads at 60. 6%, 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, HUYA Inc.

(HUYA) trades at 4. 0x forward P/E versus 29. 7x for ACM Research, Inc. — 25. 7x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for WDH: 25. 0% to $2. 00.

In this comparison, HUYA (56.

7% yield), WDH (3. 9% yield), ACMR (0. 2% yield) pay a dividend. ZH does not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, HUYA Inc.

(HUYA) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 1. 17), 56. 7% yield). 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 (HUYA: -60. 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 (WDH (Financial Services) and ZH (Communication Services) and HUYA (Communication Services) and ACMR (Technology)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: WDH is a small-cap deep-value stock; ZH is a small-cap quality compounder stock; HUYA is a small-cap income-oriented stock; ACMR is a small-cap high-growth stock. WDH, HUYA pay a dividend while ZH, ACMR 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.