The Robots Are Coming—to Collaborate With You

Our future looks increasingly robotic—whether we like it or not. But the investment craze in robotics stocks may already be getting ahead of itself.

The latest example: South Korea’s Doosan Robotics, whose shares nearly doubled in value on their first day of trading Thursday. The company, which is part of the conglomerate Doosan Group, raised around $300 million from an initial public offering, making it Korea’s biggest IPO this year so far.

Doosan makes collaborative robots, or cobots, designed to work together with humans on factory floors. Such robotic helpers are most suitable for smaller companies that may not be ready to automate their whole production line but use cobots to automate processes better done by machines. Apart from its heavy-duty industrial robots, Doosan also makes variants that can serve coffee—and beer.

Doosan isn’t the only robotics company looking frothy of late. Shares of its smaller peer Rainbow Robotics, which is backed by Samsung Electronics, have more than quadrupled this year. Samsung raised its stake in Rainbow to 15% in March.

To be fair, there are plenty of good reasons to be optimistic about industrial robots. Poor demographics and poisonous immigration politics in most advanced economies will mean weak labor-force growth in the future. Robots rarely go on strike. And in the U.S., the enormous surge in manufacturing investment—courtesy of the Inflation Reduction Act and other industrial policy bills—means demand for manufacturing workers could remain strong for quite a while. Reshoring to advanced economies is another tailwind for robotics.

In 2022, almost 60% of Doosan’s sales came from North America and Europe. Though cobots are still a small part of the overall robot market—accounting for 7.5% of industrial robots installed in 2021, according to the International Federation of Robotics—shipments have been growing faster than the market as a whole. Installations for all industrial robots grew 5% year on year to a record high in 2022.

The company is the seventh-largest maker of cobots globally, according to its prospectus. But since the top two companies, Denmark’s Universal Robots and Japan’s Fanuc, dominate the sector with nearly half of the market, Doosan’s market share amounted to only 3.6%.

Doosan has been growing fast: Its sales more than doubled to around 45 billion won, the equivalent of $33 million, in 2022 from 2020. But it isn’t cheap. With a market capitalisation of around $2.5 billion, Doosan now trades at 74 times last year’s revenue. Fanuc trades at just 4.7 times revenue. Doosan is also unprofitable, though its chief executive expects it to move into the black next year.

The robot craze, like the artificial-intelligence craze, is grounded in real technological trends—and demographic ones too. But like human workers, not all robot firms are created equal. Jumping aboard the robot stock bandwagon at any price might not serve investors over the long run.

A sharp technology sell-off has exposed a new anxiety on global markets: whether the enormous borrowing behind the artificial-intelligence infrastructure boom can generate sufficient returns as interest rates rise and Chinese competition intensifies.

The artificial-intelligence investment boom has powered technology shares, semiconductor manufacturers and data-centre operators to extraordinary heights. Last week, investors were given a reminder that much of this expansion is being built with borrowed money.

The technology-heavy Nasdaq Composite fell 4.5 per cent over the week ended October 16, its weakest performance since late June. Semiconductor shares suffered an even deeper correction, with the Philadelphia Semiconductor Index losing about 11.4 per cent.

The selling spread quickly through global markets. Micron Technology fell 14.6 per cent over the week, while South Korea’s Samsung Electronics and SK Hynix dropped approximately 18 per cent and 24 per cent respectively.

This was more than a routine bout of profit-taking. Investors were reassessing three interconnected risks: higher interest rates, the rapidly expanding debt burden attached to AI infrastructure and the prospect of stronger competition from Chinese memory-chip manufacturers.

The debt behind the AI build-out

Artificial intelligence requires a physical infrastructure network of enormous scale. Data centres must be built, advanced processors purchased, power supplies secured and cooling systems installed before customers begin generating meaningful revenue from them.

Technology companies are increasingly supplementing their own cash with corporate bonds, syndicated loans, equipment leases, private credit and project-level financing.

JPMorgan describes the emerging funding model as a combination of conventional corporate borrowing and project finance tied to individual data-centre assets. In Australia, the Reserve Bank estimates that syndicated loans accounted for approximately three-quarters of data-centre financing during 2025 and 2026 to date.

The numbers are becoming large enough to affect broader credit markets. The Federal Reserve Bank of Dallas has cited Wall Street estimates suggesting AI-related investment-grade bond issuance could approach US$300 billion in 2026 alone.

That borrowing is not automatically problematic. Debt can be an efficient way to finance long-lived infrastructure when future revenue is sufficiently predictable. The concern is that AI technology, customer demand and computing economics are changing much faster than the repayment schedules attached to the assets.

A data centre financed today may carry debt for years. Investors must therefore make assumptions about future utilisation rates, electricity prices, chip performance, customer concentration and the amount businesses will ultimately pay for AI computing.

When interest rates rise, those assumptions become less forgiving.

Inflation changes the calculation

September’s US inflation data intensified the pressure. Consumer prices increased 3.7 per cent over the year, ahead of market expectations and up from 3.4 per cent in August.

The hotter reading reduced confidence that interest rates would fall quickly and pushed bond yields higher. That matters particularly for companies whose valuations depend on profits expected well into the future, as well as highly leveraged infrastructure operators that may need to refinance.

CoreWeave has emerged as a closely watched test case. The specialist cloud-computing company has accumulated substantial debt and lease obligations to build AI capacity, while relying on a concentrated group of large technology customers.

Its shares fell sharply during the sell-off, while the cost of insuring its debt against default climbed. CoreWeave has argued that its contracted backlog more than covers its obligations and that financial markets do not always understand its business model. Nevertheless, its securities have become a proxy for investor confidence in debt-funded AI infrastructure.

Oracle, another major investor in AI computing capacity, fell 8.8 per cent in Friday trading, while CoreWeave dropped 15.5 per cent.

The question is shifting from how much AI infrastructure can be built to how profitably it can be operated.

China adds another source of pressure

Interest rates were not the only catalyst. Reports of advances by Chinese memory-chip producer ChangXin Memory Technologies raised concerns that lower-cost Chinese products could increase competition across the global semiconductor industry.

Memory chips are essential to AI systems, but the industry is historically cyclical. Periods of tight supply and high pricing can encourage rapid investment, eventually producing oversupply and falling margins.

The prospect of a well-funded Chinese competitor expanding its technological capabilities unsettled investors in Samsung, SK Hynix and Micron. It also demonstrated that AI-related demand does not insulate chipmakers from conventional competitive pressures.

That combination—slower rate cuts, more expensive financing and potentially cheaper supply—challenged the assumption that every company exposed to AI would enjoy continually expanding margins.

A reset rather than the end of the boom

The sell-off does not establish that the AI boom is ending. Demand for computing power remains strong, the largest technology companies continue to generate formidable cash flows and many infrastructure projects are backed by long-term customer contracts.

What has changed is the market’s willingness to overlook the price and financing structure of that growth.

The most resilient companies are likely to be those able to fund investment from operating cash flow, secure long-duration customers and demonstrate that new capacity will earn returns comfortably above its financing costs.

More speculative operators may face greater scrutiny, particularly where debt is expensive, customers are concentrated or expected revenue depends on demand that has not yet materialised.

For Australian investors, the lesson extends beyond US technology shares. Local data-centre operators, infrastructure funds, electricity suppliers and property groups are increasingly exposed to the same investment cycle.

Artificial intelligence may remain one of the defining growth themes of the decade. But last week’s correction showed that enthusiasm for the technology does not eliminate financial discipline.

The next stage of the AI boom will be judged not only by computing power, model performance or demand for chips, but by something more traditional: whether the assets being financed can generate enough cash to repay the money borrowed to build them.

Fact box

Nasdaq Composite: Down 4.5 per cent for the week ended October 16, 2026

Philadelphia Semiconductor Index: Down approximately 11.4 per cent

Micron Technology: Down approximately 14.6 per cent

Samsung Electronics: Down approximately 18 per cent

SK Hynix: Down approximately 24 per cent

US September inflation: 3.7 per cent annually

Estimated 2026 AI-related investment-grade issuance: Approximately US$300 billion