上交所本周对*ST岩石、*ST正平、*ST精伦等异常波动退市风险警示股票，以及中韩半导体ETF等溢价较高的基金进行重点监控

Group 1 - The Shanghai Stock Exchange has implemented self-regulatory measures against 158 cases of abnormal trading behaviors, including price manipulation and false declarations, from February 24 to February 27, 2026 [1] - Stocks under risk warning for abnormal fluctuations include *ST Rock, *ST Zhengping, and *ST Jinglun, along with a focus on the high premium of the China-Korea Semiconductor ETF [1] - The exchange has conducted special investigations into 7 major corporate events and reported one suspected illegal case to the China Securities Regulatory Commission [1]