Chongqing M&E (02722) surged over 6% during the session. At the time of writing, the stock was up 4.95% at HK$1.91, with a turnover of HK$26.31 million.

The rally follows MSCI Inc's announcement of its November index review results, which included Chongqing M&E in its Global Small Cap Index. The adjustment took effect after market close on November 24.

Additionally, unaudited financial statements from Chongqing Cummins for January-October 2025 indicate expected year-on-year growth in both revenue and total profit, potentially reaching record highs.

CITIC Securities noted in a research report that AIDC continues to drive strong demand for Chongqing Cummins' high-horsepower engines. The report highlighted that Chongqing Cummins' Q60 model has achieved mass production capability, with sales of high-horsepower engines increasing 8% in the first half.

Cummins Inc (US) reported receiving US$68 million in investment income from Chongqing Cummins in the first nine months, a 33.3% year-on-year increase. This includes US$23 million in Q3 2025 alone, representing 53.3% growth year-on-year.