Zhongji Innolight, the world's top optical module maker, is planning an $8 billion Hong Kong listing, with shares to be priced up to HK$1,010 each, according to sources cited by Reuters on July 21, 2026. The deal would be Hong Kong's biggest since Alibaba's 2019 listing.

The figure has moved upward over the past five weeks. Reuters first reported on June 16 that the company was eyeing up to $7 billion, with a deal launch possible as early as mid-July. By July 17, Reuters described the company as "nearing" a listing at that same $7 billion ceiling. Caixin Global confirmed the next day that Zhongji Innolight had cleared its Hong Kong listing hearing for an approximately $7 billion IPO, and reported it would potentially be the city's largest listing of 2026. The most recent Reuters figure, $8 billion, supersedes those earlier estimates.

At $7 billion, Reuters noted on July 17, the IPO would surpass Luxshare's listing in size. At $8 billion, the deal would clear that bar by an even wider margin and extend to the largest Hong Kong offering since Alibaba's secondary listing in 2019.

The HKEX new listing information page lists Zhongji Innolight's application proof, omnibus consent announcements, and a Post Hearing Information Pack (PHIP), updated as of July 20, 2026. A draft PHIP was published on the HKEX news website with documents dated July 17, 2026. The directors named in the Hong Kong listing application include Dr. Liu Sheng, Mr. Wang Xiaodong, and Ms. Wang Xiaoli.

Reuters reported on July 21 that AI data centre demand was cited as a driver behind the IPO. Optical modules are the components that convert electrical signals into light and back again inside data centre switches and servers, and the build-out of AI training and inference infrastructure has driven a surge in orders for high-speed transceivers. Zhongji Innolight's positioning as the world's top optical module maker places it at the centre of that procurement cycle.

The trajectory of the deal size matters for how the book is likely to be built. A jump from $7 billion to $8 billion in the space of five days suggests either that early cornerstone indications were stronger than expected or that the issuer and its bankers see room to push the float higher before final pricing. The HK$1,010 per-share ceiling gives a concrete reference point for where the price range is being anchored, though the final offer price will depend on demand during bookbuilding.

For Hong Kong's listing market, the deal is a meaningful inflow regardless of where it lands within the $7–8 billion range. The exchange has been working to rebuild its IPO pipeline after several thin years, and a deal of this scale, clearing the hearing stage and moving toward pricing, will be read as a test of investor appetite for China-domiciled AI infrastructure exposure. Whether the final size holds at $8 billion or settles lower will depend on cornerstone commitments and the reception during the public offer period. The PHIP filing and the HKEX listing page updates indicate the regulatory process is in its final stages; the remaining variable is market demand at the price point the company is targeting.