GRINM Semiconductor Soars 10.03% to Hit Intraday High of CNY 47.16

GRINM Semiconductor Materials Co., Ltd. has experienced a significant surge in its stock price, gaining 10.03% on July 21, 2026. The stock reached an intraday high of CNY 47.16, marking a notable performance in the market. This increase stands in contrast to the China Shanghai Composite, which saw a modest rise of 1.79% on the same day. Over the past month, GRINM has shown remarkable growth, with a staggering 82.82% increase, while the broader market index declined by 5.53%. Year-to-date, the stock has surged by 274.78%, significantly outperforming the China Shanghai Composite, which has dipped by 2.63% during the same period. Despite the impressive short-term performance, GRINM's long-term growth metrics indicate challenges, with net sales declining at an annual rate of 5.08% and operating profit decreasing by 9.50% over the last five years. The company's market capitalization stands at CNY 24,541 million, and it currently holds a P/E ratio of 100.00. As the stock continues to attract attention, its recent highs reflect a dynamic moment in its trading activity.