Acm Research is trading 6.2% down at $78.90, extending a sharp weekly slide driven by sector-wide weakness and profit-taking in semiconductor equipment names.
- Broader chip stocks are retreating as investors reassess lofty AI-driven valuations and reduce exposure to high-beta semiconductor plays.
- The decline persists despite strong earnings from TSMC, with risk-off sentiment hitting the sector even in the absence of new, company-specific news.