On New Year’s Day, Baidu submitted a confidential prospectus to list shares of its in-house semiconductor design arm, Kunlunxin, on the Main Board of the Hong Kong Exchange. The parent company is expected to retain a 59% stake in Kunlunxin following the offering. In its most recent private financing, Kunlunxin was valued at approximately 21 billion yuan, equivalent to roughly 3 billion U.S. dollars, signaling significant hidden value within Baidu’s broader corporate structure.

Following the filing, Baidu’s stock climbed 13.1% by midday trading, reaching its highest level since mid-2023 and adding nearly 6 billion dollars to its market capitalization in a single session. Trading volume totaled around 504,000 shares, well above the three-month daily average of 3.6 million shares, underscoring strong investor enthusiasm for the company’s semiconductor and AI potentials.

While the chip unit IPO highlights Baidu’s push into high-growth AI hardware, the core search-advertising segment recently reported revenue and profit declines. Gross margin remains healthy at approximately 44.7%, but the shift in focus to capital-intensive AI developments places pressure on the legacy digital marketing business to stabilize. Investors will be watching for progress on Kunlunxin’s product roadmap and the parent company’s ability to leverage synergies between cloud services, autonomous driving projects and its traditional online advertising revenue stream.