Momenta is heading for Hong Kong with the kind of autonomous-driving story investors like: fast software revenue, big carmaker names, and losses large enough to test your patience.
Momenta's pitch is simple, but it is not small. The Suzhou and Beijing autonomous-driving company wants public-market investors to believe that software margins can eventually outrun the cost of training, testing and selling the systems that sit inside modern cars. If you buy that argument, a Hong Kong listing at an expected valuation around $9 billion looks like the next logical step. If you don't, the same number looks like an expensive vote of faith.
According to The Wall Street Journal, Momenta is preparing to raise about $1 billion in Hong Kong after China's securities regulator approved materials for an offering of up to 43.75 million shares. The report also said the company is backed by General Motors, Toyota Motor and SAIC Motor, and has partnerships with Uber and Mercedes-Benz on robotaxi projects in Munich and Abu Dhabi. That is the real strength of the story. Momenta is not asking investors to believe in a lab demo. It is pointing to automakers that already have to make driver-assistance software work in cars people can actually buy.
Founded in 2016 by Cao Xudong, a former Microsoft researcher, Momenta has built its business around a specific bet: the best place to sit in autonomous driving may not be the robotaxi fleet or the factory floor, but the software layer licensed into mass-market vehicles. Its systems are designed to handle functions such as steering, braking, lane changes and parking. That puts Momenta in the same hard conversation every supplier now has with carmakers: are you a partner, or are you training your future competitor?
You can see why the company likes the software argument. Hardware suppliers live with brutal manufacturing costs and constant pricing pressure. A licensing business, if it scales, gives you a better margin profile and a cleaner story to tell public investors. But that word, if, is doing real work here. Chinese automakers have spent years building in-house software capability, and BYD, one of the names tied to Momenta's commercial universe, has made driver-assistance systems a core part of its own product strategy. Partners can become rivals. In this market, they often do.
Hong Kong is not an accident. It is the venue Chinese AI and robotics companies can still use at scale while New York has become harder for businesses sitting close to advanced technology, data and China policy. As the Financial Times reported in April, Hong Kong had its strongest first quarter for equity sales since 2021, with more than $13 billion raised in the first three months of 2026. The Journal separately reported that companies raised about HK$166.8 billion in Hong Kong in the first five months of 2026, more than double the same period a year earlier.
That backdrop helps Momenta. It does not solve Momenta's problem. Public markets may be open, but investors still have to decide whether autonomous-driving software deserves a software multiple before the profits show up. The recent enthusiasm for Chinese AI listings gives the company a better audience than it might have had two years ago. It also raises the bar, because every new listing has to prove it is more than another way to put the letters AI in a prospectus.
The best part of Momenta's case is that its customer list is not theoretical. Mercedes-Benz has worked with the company in China and on robotaxi plans abroad. Uber is part of the Munich project. Grab has agreed to work with Momenta in Southeast Asia. Toyota, GM and SAIC have all been named among its backers or partners in recent reporting. Those names matter because autonomous driving is not a consumer app you can scale on clever distribution. It has to survive procurement teams, regulators, safety testing, car platforms and years of integration work.
Frankly, that is also why the valuation deserves scrutiny. A car software company can look like enterprise software on a spreadsheet, but it still sells into an industry that moves slowly, negotiates hard and hates depending on outside suppliers for strategic systems. If Momenta becomes the trusted driving stack across multiple automakers, the upside is obvious. If automakers use it as a bridge while they build their own systems, the margin story gets thinner quickly.
The listing is current, and the timing makes sense. Hong Kong has investor demand, China has a pipeline of AI and robotics companies that need capital, and Momenta has enough recognized names around it to get attention. What investors are really buying is not one IPO week. They are buying the idea that software will take a larger share of the economics inside the car, and that Momenta can keep that share once the automakers decide they want more control.
That is the question to watch after the offering, not the first-day pop. A strong debut would show demand for Chinese autonomous-driving exposure. Sustained performance will require something harder: proof that Momenta's role inside the car is durable, paid and difficult to replace.
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