What the US-China summit tells us about ACM Research
Midwestern Investor
· The Midwestern Investor
· May 17, 2026 at 19:16
· ⏱ 4 min read
| Read on Substack ↗
Summary
The article analyzes ACM Research (ACMR) and its significant valuation discount relative to its majority-owned subsidiary ACM Shanghai, driven by geopolitical tension and US-China relations. The author draws parallels to other Chinese acquisitions of Western tech companies and argues that the discount is too large to ignore, especially if US-China relations improve. The author discloses being a shareholder in ACMR, implying a bullish outlook based on the potential for the valuation gap to narrow.
•ACM Research (ACMR) owns ~74% of ACM Shanghai, but ACMR's market cap ($4.4B) is far below the implied value of its stake ($12.4B), creating a ~50% discount.
•ACM Shanghai announced a secondary listing in Hong Kong, and activist investors Steamboat Capital and Kerrisdale Capital have offered to incentivize listing fungible shares of ACMR in Hong Kong.
•The author compares ACMR's situation to Chinese acquisitions of European tech firms like FiconTEC, KUKA, and Aixtron, highlighting the theme of Chinese appetite for Western small-cap tech.
•The US-China summit is a key catalyst: improved relations could reduce the discount, while continued distrust could maintain or widen it.
•The author explicitly states they are a shareholder in ACMR, indicating a long position and belief that the valuation mismatch is unsustainable.
•Other companies mentioned (e.g., Aixtron, Nexperia, Silex) serve as historical examples, not as current trade recommendations.
The author is a shareholder in ACMR, betting that the large valuation discount to its Shanghai subsidiary will narrow, potentially catalyzed by improved US-China relations or corporate actions like a
The author is a shareholder in ACMR, betting that the large valuation discount to its Shanghai subsidiary will narrow, potentially catalyzed by improved US-China relations or corporate actions like a Hong Kong listing.