Pakistan, June 9 -- Chinese defence stocks soared on Monday after Pakistan confirmed it will buy the advanced J-35 stealth fighter jets from China. The official announcement, shared by Prime Minister Shehbaz Sharif last week on social media, ended weeks of speculation and immediately impacted financial markets.

Shares of AVIC Shenyang Aircraft Co., which builds the J-35, surged to their daily limit of 10% in Shanghai. Other defence firms also jumped, with Aerospace Nanhu Electronic Information Technology Co. gaining as much as 15%, according to Bloomberg. The news comes as Pakistani pilots are already in China receiving training for the jets.

The J-35A is China's second fifth-generation fighter after the J-20 and is packed with cutting-...