Zhongji Innolight Co. is set to begin trading in Hong Kong on Thursday after raising HK$53.4 billion ($6.8 billion) in the city's largest listing in seven years, a deal that highlights sustained investor interest in AI infrastructure despite recent market jitters.

The optical transceiver manufacturer's debut is being closely watched as a barometer for sentiment toward AI-related hardware stocks, which have seen increased volatility amid shifting macroeconomic expectations. The offering size surpasses all Hong Kong listings since 2017, signaling robust institutional demand for exposure to the AI supply chain.

Innolight's products are critical for high-speed data transmission in data centers, positioning it as a key beneficiary of global AI capital expenditure. The successful pricing at the top of the marketed range suggests strong confidence in the company's growth trajectory, even as broader technology valuations face pressure.

Trading performance in the first few sessions will provide early clues on whether the AI investment theme can withstand current uncertainty. A strong debut could pave the way for other Chinese tech firms considering Hong Kong listings, while a weak showing may dampen the pipeline for large-scale offerings.