ACM Research, Inc. (ACMR) Stock Price & How to Invest

ACM Research designs and sells production equipment for chip manufacturing, with a core in single-wafer wet cleaning tools that lift yield, plus a broadening lineup spanning electrochemical plating (ECP), stress-free polishing, furnace, PECVD and advanced wafer-level and panel-level packaging tools. Although the parent is US-headquartered and NASDAQ-listed, the large majority of revenue flows through its ACM Research (Shanghai) subsidiary serving Chinese fabs, where domestic equipment substitution policy has been a strong tailwind. The company has been diversifying its product mix and pushing beyond mainland China, including a first single-wafer cleaning delivery to a Singapore foundry and packaging-tool orders from North American and Southeast Asian customers.

The investment picture is one of rapid growth paired with concentrated geopolitical risk. Revenue and shipments have been climbing at double-digit-to-50%-plus rates, margins are healthy, and the balance sheet holds a large cash position, but the valuation prices in continued expansion and the China concentration cuts both ways: it drives the growth and exposes the company to US export controls, entity-list actions and intensifying domestic competition. ACMR is best understood as a high-beta way to play Chinese fab capacity and localization rather than a diversified equipment name.

The overwhelming risk is geopolitical: with most revenue tied to China, US export controls, entity-list actions or a broader trade rupture could sharply cut ACMR's addressable market. Domestic competition is intensifying, with rival Kingsemi narrowing ACMR's single-wafer SPM lead and NAURA taking a stake in Kingsemi in March 2025 to consolidate China's wet-clean market. Chinese tools priced 20% to 30% below Western equipment are also beginning to pressure pricing and margins. Semiconductor equipment demand is cyclical, so a downturn in fab capital spending would hit shipments. Finally, the stock carries an elevated valuation that leaves little cushion if growth disappoints.

A simple financial snapshot. These are approximations and refresh quarterly; for current figures see ACM Research, Inc.'s investor relations page or your broker.

• Revenue (TTM): ~$1.0B
• 2026 revenue guidance: ~$1.08B to ~$1.175B
• Q1 2026 revenue growth (YoY): ~34%
• Gross margin (Q1 2026): ~46%
• Market cap: ~$6B
• P/E (TTM): ~67x

As of June 2026, ACMR carried a trailing P/E near 67x on TTM EPS of about $1.31, a rich multiple that reflects its rapid growth and thin float rather than a value profile. The company reaffirmed 2026 revenue guidance of roughly $1.08B to $1.175B (about 21% to 30% growth) and held roughly $1.25B in cash and short-term deposits at the end of Q1. The stock has been volatile, with a 52-week range spanning roughly $22 to $94.

There are three common ways to get ACMR exposure. Buy shares (or fractional shares) directly at any major broker. Hold an ETF that includes it, which spreads the position across many companies. Or build it into a focused thematic basket, so ACMR sits alongside other stocks that express the same thesis.

Walnut takes the basket route. Describe a thesis where ACMR fits (for example “AI infrastructure” or “dividend-growth large-caps”) and the AI proposes 5 to 6 constituents with target weights. You review the plan and fund it through your own broker when you're ready.

ACMR is a fast-growing, profitable niche equipment supplier whose upside and its biggest risk are the same thing: its deep exposure to China's semiconductor buildout.

Whether ACMR is worth buying today depends more on your time horizon and what you already hold than on any single call. We walk through valuation, what would have to go right, and the risks in is ACMR a buy?, and where the stock could go from here in the ACMR stock forecast.

For income investors, whether ACMR pays a dividend and how the payout looks is covered in does ACMR pay a dividend?