ACM Research (Shanghai), Inc.

A top-tier grower. Revenue and profit are compounding together at an elite rate. A core holding profile for growth and quality-growth strategies. The strongest point: revenue grew 33%/yr over the last 3 years, ahead of 90% of companies worldwide.

A proven multi-year compounder now in a meaningful pullback well below its 52-week high. This is the classic fork: either a buy-the-dip in an intact uptrend, or the early stage of a trend change. Wait for the short-term slide to stabilise before adding. The strongest point: strong long-term results. The one thing to watch: the one-year trend is weak.

A premium price for a high-quality, fast-growing business. Multiples screen expensive, but quality (68/100) and growth (98/100) rank near the top of the market. This is a pay-up-for-the-business profile, not a broken one — better suited to growth or quality mandates than pure value. The strongest point: its forward P/E of 199x is 284% above that median, and its three-year P/E of 22x is 58% below. The one thing to watch: the valuation leaves little margin of safety, so it leans on growth and quality to deliver.

A genuinely high-quality business. Profitability and capital efficiency rank well above the market. A solid quality holding, with one or two softer spots to watch. The strongest point: best on net margin at 16%, better than 60% of companies worldwide. The one thing to watch: free cash flow is negative.