Today's biggest winners and losers in the stock market.

On this episode of Stock Movers:

- CXMT surged as much as 535% in its Shanghai trading debut on Monday, propelling the memory chipmaker to become China’s largest onshore-listed company as investors piled into one of the country’s biggest artificial intelligence champions

- Korean defense shares slump after Hyundai Rotem’s second-quarter operating profit missed expectations due to a delayed order book from the prolonged Middle East war. The results prompted analysts to lower their price targets on the stock.

- Shin-Etsu Chemical shares fell as much as 5.3% in early Tokyo trading Monday, to their lowest level since April 2, after the Japanese company’s full-year operating income guidance missed estimates, with analysts pointing to a sluggish polyvinyl chloride business.