曝马云已“强势回归”，阿里巴巴暂无回应

Group 1 - The core point of the article is that Alibaba's founder, Jack Ma, has made a strong return to the company, with his involvement at the highest level in five years, particularly focusing on artificial intelligence and competing against rivals like JD.com and Meituan [1] - Jack Ma has been seen multiple times at Alibaba's campus this year, with a notable appearance on September 16 at a bar accompanied by a senior executive from Ant Group [1] Group 2 - On September 17, Alibaba's stock price rose by 5.28% to HKD 161.6, marking a nearly four-year high and bringing the company's market capitalization back to HKD 3 trillion [3]