Shares of ACM Research Inc. (ACMR) plunged 5.01% in Tuesday's intraday trading session following a significant price target cut by JP Morgan. The investment bank lowered its target price for the semiconductor equipment manufacturer from $52 to $45, sparking a sell-off among investors.

The downward revision in the price target suggests that JP Morgan analysts have become more cautious about ACM Research's near-term prospects. This adjustment could be based on various factors such as market conditions, company-specific challenges, or broader industry trends affecting the semiconductor sector.

Investors often react strongly to changes in analyst ratings and price targets, especially from major financial institutions like JP Morgan. The substantial drop in ACMR's stock price reflects growing concerns among shareholders about the company's valuation and future performance. As the market digests this new information, it remains to be seen whether other analysts will follow suit or if ACM Research can address the underlying concerns that led to this target price reduction.