Analysis
Zhongji Innolight, the Chinese optical-interconnect supplier that ranks first globally in the category for five consecutive years, priced its Hong Kong IPO at HK$980 per share -- below the HK$1,010 maximum indicated price -- raising roughly $6.8 billion in what became Hong Kong's biggest share sale in seven years and Asia's second-largest listing this year, trailing only memory-chip maker CXMT's $8.6 billion Shanghai debut.
The company's fundamentals going into the listing were strong by any measure: 2025 revenue of 38.24 billion yuan (about $5.6 billion), up 60% year-over-year, with net profit attributable to shareholders surging 109% to 10.8 billion yuan. Zhongji supplies optical transceivers that convert electrical and optical signals to support the high-speed data transmission AI data centers depend on, putting it squarely in the same infrastructure category as GlobalFoundries' newly-funded silicon photonics push in the US. More than 30 cornerstone investors, including BlackRock, Temasek Holdings, and the Canada Pension Plan Investment Board, had committed to the offering ahead of the debut.
“More than 30 cornerstone investors, including BlackRock, Temasek Holdings, and the Canada Pension Plan Investment Board, had committed to the offering ahead of the debut.”
Despite that demand and those fundamentals, shares fell as much as 3-5% on their Hong Kong Stock Exchange debut Thursday. The weakness wasn't specific to Zhongji -- it reflects the broader global downturn in AI-sector sentiment that has already wiped more than $1.5 trillion off chip stocks in the US and spread into Japanese and Korean names this same week. Even a company with genuinely excellent underlying numbers couldn't escape the sector-wide repricing happening simultaneously across markets.
For investors tracking the global AI infrastructure supply chain, Zhongji's debut is a reminder that optical interconnects sit at the center of both the US and China's AI buildout strategies -- and that strong fundamentals are currently necessary but not sufficient to guarantee a strong public-market reception. What to watch: whether Zhongji's shares stabilize once the broader chip selloff cools, and how its Hong Kong listing performs relative to its existing Shenzhen-listed shares over the coming weeks.
