Global Market: Zhongji Innolight shares slip in Hong Kong debut after record $6.8 billion IPO

Zhongji Innolight shares declined in their Hong Kong market debut on Thursday after the Chinese maker of data-centre optical components raised HK$53.4 billion ($6.8 billion) in the city's largest share sale of the year, according to Reuters.

The stock opened at HK$971, below its HK$980 offer price, and later traded at HK$902, marking a decline of nearly 8%. The broader Hang Seng Index remained largely unchanged, while the Hang Seng Tech Index fell 1%. Zhongji's Shenzhen-listed shares also dropped 12%.

The company became the most actively traded stock in Hong Kong by turnover during mid-morning trading, surpassing major technology names such as Tencent and Xiaomi.


The weak debut came amid a broader retreat in Asian semiconductor stocks, which weighed on investor enthusiasm for artificial intelligence-related companies. Reuters reported that concerns over stretched valuations, the heavy costs involved in developing AI data centres and growing competition from Chinese technology suppliers have pressured the sector.

Analysts said Zhongji's strong position in high-speed optical communications and its exposure to AI infrastructure spending could support long-term earnings growth. However, Reuters cited market strategists as warning that ongoing volatility in AI-related stocks could lead to sharp price swings in the near term.

The IPO marked Hong Kong's biggest share offering since Alibaba raised $12.9 billion through a secondary listing in 2019, according to LSEG data cited by Reuters. It was also Asia's second-largest share sale this year, following Chinese memory chip maker CXMT's $8.6 billion Shanghai IPO, which surged 466% on its debut before falling 4% on Thursday.

Hong Kong's equity fundraising activity has gained significant momentum in 2026, with companies raising $33.8 billion through share sales so far this year, more than double the $16.4 billion raised during the same period last year, LSEG data showed.

Zhongji Innolight manufactures optical transceivers that enable high-speed data transmission through fibre-optic networks used in data centres. The company said it was the world's largest optical interconnect solutions provider by revenue last year, holding a 21.2% market share based on consultancy CIC data.

The United States contributed 61.7% of Zhongji's first-quarter revenue, highlighting the company's exposure to global AI infrastructure demand.

The company has also faced geopolitical challenges. In June, the U.S. added Zhongji to a list of companies suspected of having links to China's military. Reuters reported that Zhongji rejected the move, saying it lacked factual and legal grounds and had not led to significant order cancellations, suspensions or delays.

Despite the challenging debut, investors remain focused on Zhongji's role in supporting the expansion of AI data centres and the growing demand for high-speed connectivity solutions.